iPhone 12 Pro Max review

Still one of the best big iPhones on the market

The iPhone 12 Pro Max in a garden
(Image: © TechRadar)

TechRadar Verdict

If you’re looking for one of the best iPhones on the market, the iPhone 12 Pro Max is still worth checking out: it’s powerful, has the longest battery life on an iPhone we tested in 2020 and the camera is top-notch. You'll need to be ready to carry the extra heft, as this is a large iPhone indeed, and the cost isn't to be sniffed at, but we're adding an extra half star for all those iPhone fans that just want the best Apple can bring – the iPhone 12 Pro Max manages to do that rather well.


  • +

    Great screen

  • +

    Longer battery life

  • +

    Powerful camera


  • -

    Feels almost too large

  • -

    The most expensive iPhone

  • -

    Camera not hugely better than the 12 Pro

Why you can trust TechRadar We spend hours testing every product or service we review, so you can be sure you’re buying the best. Find out more about how we test.

Two-minute review

The iPhone 12 Pro Max was the biggest iPhone Apple had ever made when it launched and it was easily the best. It was also very expensive at $1,099 / £1,099 / AU$1,849 although it's now a touch trickier to track down as Apple no longer sells it directly. 

Sure, this iPhone 12 Pro Max review is now a little old given that the iPhone 13 Pro Max is here, but for cost or availability reasons, you might still be considering Apple's top-end mobile of 2020.

While Apple keeps around older basic models in its lineup, it typically quietly retires the larger versions, meaning you'll be able to find the iPhone 12 Pro Max at other retailers, probably at a discount, but not directly from Apple. 

The design of the 12 Pro Max mirrors that of the other handsets in 2020's iPhone 12 family: there’s a new flat-sided frame, which looks more industrial, and is a little less comfortable to hold than last year's model. It's a whole new look that's actually a bit old, given it debuted in the iPhone 4 a decade ago, but made a comeback in recent iPad Pro models. 

Given how incremental the upgrades are on the iPhone 13 Pro Max, though, we'd still recommend the iPhone 12 Pro Max as a top choice for fans of big Apple phones. The arrival of iOS 15 also adds plenty of new functionality, from improved Apple Maps to more nuanced Messages functionality to watching or listening to media with others via SharePlay. 

The iPhone 12 Pro Max is decked out in premium-looking, more muted colors though, and we're fans of the shiny metal rim around the edge (despite the fact that it's a real fingerprint magnet). It gives the big phone a modern and industrial look.

While the iPhone 12 Pro Max is actually only a very small amount bigger than 2019's 11 Pro Max, the bezels around the OLED display have been shrunk to allow Apple to increase the screen size to 6.7 inches – and it's a compelling reason to pick up the new larger iPhone.

Images are clearer and more visible on the larger display, you can see more of a web page or image in daily use – and as a movie-watching machine it was the best iPhone ever at launch. It's one of the best displays on the market, able to render both colorful scenes and more subtle tones with ease.

The headline feature on the new iPhone 12 Pro Max is the camera array: there are three cameras, all upgraded with a better image processor. While the camera block protrudes from the rear of the phone more than on recent iPhones, the main 12MP sensor has been upgraded to capture a lot more light, and enhancements have been made to the image processing too – some of the photos we took were really impressive.

However, the 12 Pro Max wasn't that far ahead of the iPhone 12 Pro's camera performance in our tests, which was surprising – images were, on the whole, clearer and brighter from the 12 Pro Max, but not by a huge amount.

If you're a budding movie-maker, we'd say it's definitely worth looking at the 12 Pro Max – it's packing Dolby Vision recording at 4K and 60 frames per second, so if you’re a content creator looking for a phone that can record high-quality footage, the 12 Pro Max can definitely do that.

HDR will also make your movies look better, with improved brightness and color; however, it can look a little artificial, and clips will take up more storage space on your phone. It's not a feature that most should look to upgrade for.

The iPhone 12 Pro Max port

There's no USB-C on this iPhone – if any was going to have it in 2020, it would be the top-end iPhone 12 Pro Max. (Image credit: TechRadar)

The 12 Pro Max starts at 128GB of storage, which is the bare minimum we’d expect, as the cameras will fill it up quickly – and with 5G on board you'll be able to download content faster, making it easier to fill up your phone with movies and music too.

5G is the future of mobile connectivity, but it's not in itself a reason to buy the iPhone 12 Pro Max... yet. Many parts of the world still don't have 5G coverage, so many users will find this feature redundant for now. In the next few years connectivity will become much more widespread though, so buying a 5G iPhone is more about future-proofing than enjoying next-gen speeds right now, unless you live in the heart of a major city.

And 5G mostly just brings faster speeds (though it’s faster than even Wi-Fi for most), so you might not feel like that's something that’s missing from your life right now.

Apple has also added the innovative MagSafe tech to the iPhone 12 Pro Max, which enables you to magnetically clip chargers, cases and accessories to your new iPhone. We like this addition, and more accessories are appearing all the time right now; MagSafe will only get better as time goes on, and getting the iPhone 12 Pro Max will future-proof you as more accessories appear on the market.

Along with the larger display, one of the big reasons to go for the iPhone 12 Pro Max is the battery life – it has the biggest battery of all the new iPhone 12 range thanks to having the largest chassis. We easily crested a day of use in our testing, and even on days when we really pushed the battery hard we got to 7:30pm before we needed the charger – if you've read our iPhone 12 Pro review, and have concerns about whether it'll last long enough, we advise moving up to the Max.

If you want the best of all things in an Apple smartphone, the iPhone 12 Pro Max is it. The large and bright display, the enhanced camera, the longer battery life and awesome grunt inside make this a compelling smartphone. If your hands can cope with the extra heft (and your wallet with the heftier price), this is the model to go for.

However, if the Pro Max feels a bit more than you need, or is beyond your budget, the iPhone 12 Pro offers a similar feature set and performance for less (although without the extended battery life) – and the difference between the cameras isn't as marked as we expected.

If you're open to Android then there are also a few other top-flight phones to consider, most notably the Samsung Galaxy S21 Ultra, which at the time of writing tops our list of the best smartphones. You might also want to take a look at the OnePlus 9 Pro, which matches or beats the iPhone 12 Pro Max in many areas while coming in at a slightly lower price.

iPhone 12 Pro Max release date and price

  • Went on sale November 6, 2020
  • Started at $1,099 / £1,099 / AU$1,849 for 128GB storage
  • Went up to $1,399 / £1,399 / AU$2,369 for 512GB storage

The iPhone 12 Pro Max on its box

The iPhone box is slimmer now that the charging block and headphones are no longer included (Image credit: TechRadar)
iPhone 12 Pro Max specs

Weight: 228g
Dimensions: 160.8 x 78.1 x 7.4mm
Display size: 6.7-inch
Resolution: 1284 x 2778
Chipset: A14 Bionic
Storage: 128/256/512GB
Rear camera: 12MP + 12MP + 12MP
Front camera: 12MP
Pre-installed software: iOS 14
Battery: 3,687mAh
Charging: 15W wired, 7.5W wireless 

After an October 13, 2020 announcement, Apple confirmed that the iPhone 12 Pro Max would be coming a few weeks after launch; while the iPhone 12 and iPhone 12 Pro were available on October 23, the company opted to release both the iPhone 12 mini and iPhone 12 Pro Max at a later date.

iPhone 12 Pro Max pre-orders opened on November 6, 2020, and you're still able to buy the phone around the world.

The iPhone 12 Pro Max price started at $1,099 / £1,099 / AU$1,849 for 128GB of storage, rising to $1,199 / £1,199 / AU$2,019 for 256GB, and $1,399 / £1,399 / AU$2,369 for 512GB.

It's now no longer available directly from Apple, but you should still be able to find it at third-party retailers with discounts highly likely.

iPhone 12 Pro Max design

  • Really big for an iPhone
  • Uncomfortable-to-hold flat edges
  • Prominent camera bump

The iPhone 12 Pro Max next to the iPhone 12 Pro

The iPhone 12 Pro Max is quite a bit bigger than the 12 Pro (Image credit: TechRadar)

The iPhone 12 Pro Max is big. It remains one of the biggest iPhone that Apple’s ever made, if only by a few millimeters. However, as it also has the new squared edges of the iPhone 12 and 12 Pro Max, aping the brutal, industrial design of the new iPad Pro range, it feels larger in the hand.

That’s not to say this is a bad thing – if you’re not buying the 12 Pro Max because you want a massive iPhone, then you’re kind of missing the point.

Those angular edges mean the phone isn't as comfortable to hold as the more rounded iPhone 11 Pro Max, the curved sides on which folded more softly into the palm.

One of the key characteristics of the Pro Max is the more ‘mature’ colors it comes in – the outside is a shiny stainless steel band, and this, the front accent and the rear of the phone now come in Graphite, Gold, Silver and Pacific Blue.

That shiny outer rim looks fancy, but it’s also a magnet for fingerprints – get ready to polish it a fair bit if you want to keep it looking new and premium.

Given the price tag, you’d expect an expensive-looking phone, and the iPhone 12 Pro Max definitely looks the part, especially in the Gold color we reviewed.

Essentially, the design of the 12 Pro Max is just a larger version of the iPhone 12 and 12 Pro, and despite the size it still fits well in the hand, and it's easy to hit the Siri / screen lock button on the left and the volume keys on the right.

However, there’s one big difference: the three-camera setup on the rear of the 12 Pro Max protrudes much further than on the iPhone 12 and 12 Pro, as there’s a larger sensor underneath to pull in more light (we’ll get to whether that’s worth it in the camera section, but – spoiler alert – it’s not bad at all).

The iPhone 12 Pro Max camera bump next to the iPhone 12 Pro camera bump

The 12 Pro Max's camera protrusion (right) doesn't look much bigger than the 12 Pro's here, but it feels huge in the hand (Image credit: TechRadar)

This means that when you’re putting the iPhone 12 Pro Max down on a table, it really rocks from side to side if you’re tapping away on the screen – it’s almost fun to play with absentmindedly, such is the protrusion. It’s really noticeable, and will make most people think about putting a case on the iPhone to just flatten off the bump.

As mentioned, this is the largest iPhone Apple has ever made, with dimensions of 160.8mm x 78.1mm x 7.4mm, and despite being thinner than 2019’s 11 Pro Max, it actually feels slightly larger in the hand, thanks to the square edges.

Be ready for something that might annoy you before you buy: Apple has dropped the charging block and Earpods from the box. You’re now just getting a charging cable at purchase – and it’s USB-C to Lightning, rather than standard USB-A to Lightning cable that Apple’s been putting in boxes for years.

The USB-C cable does charge the iPhone more quickly – but you’ll need to go out and buy a charging block at $19 / £19 / AU$29 from Apple to use it.

It makes no sense for Apple to do this – it says it’s making this move to reduce electronic waste, as everyone has charging blocks and headphones already, but while that’s true barely anyone will have the right block to allow them to use this new cable – it would have made far more sense to do this when Apple had been supplying this charging lead for a few years.

If you don't have the right block, or if you’ve never owned an iPhone before, you’ll need to factor in the cost of a new charging block on top of the already-high price tag of the 12 Pro Max.

The key takeaway: if you want a huge iPhone, and all the benefits that brings, then you’ll enjoy the design of this bigger model – but you certainly won’t be able to reach all around the screen with your thumb.

iPhone 12 Pro Max display

  • Big 6.7-inch screen
  • OLED screen with 1284 x 2778 resolution
  • Ceramic Shield offers extra protection

The iPhone 12 Pro Max next to the iPhone 12 Pro

The display quality is identical on the 12 Pro and Pro Max. Plus this image just makes us giggle (Image credit: TechRadar)

The iPhone 12 Pro Max has the largest display of any iPhone ever created – that in itself is a good reason to upgrade.

In keeping with new technology that appeared on 2019’s 11 Pro and Pro Max, all the models in the iPhone 12 range are packing OLED displays, and especially at this size it really makes a big difference. Apple is calling this a ‘Super XDR OLED display’, and in layman's terms this translates to a clear, bright and sharp screen with excellent color reproduction.

It's a real upgrade for anyone coming from the older iPhones – the display here is startlingly better, and images really pop with color and detail.

Thanks to the thinner bezels around the new iPhone 12 Pro Max display the screen is able to stretch further to the edges of the device, resulting in a 6.7-inch display compared to a 6.5-inch affair on the 11 Pro Max, and it looks really impressive. That extra screen estate is really noticeable next to last year’s phone, and adds to the sense of immersion when watching movies or similar.

It’s not a huge step forward in terms of brightness – this is a very similar OLED panel to the one we saw on  the 11 Pro and 11 Pro Max – but it’s pin-sharp, and streamed or downloaded content looks dynamic on the larger display, with high contrast ratios making things like blockbuster action movies and nature documentaries look incredibly absorbing.

The iPhone 12 Pro Max next to the iPhone 12 Pro

The viewing angles on the OLED display are excellent (Image credit: TechRadar)

Apple has added the Ceramic Shield to the front of the iPhone 12 Pro Max, as it has with others in the iPhone 12 range – this is designed to make it four times less likely to crack in the event of a drop.

We didn’t test that claim during our review – partly because we don’t want to randomly see if we can smash an expensive phone just to see what happens – but Apple is also claiming the iPhone 12 range is scratch resistant, thanks to a ‘dual ion exchange’ process.

That’s not something we saw in our usage. As with the iPhone 11 Pro Max in 2019, early in our testing small nicks and scratches began appearing on the device. Nothing that’s obvious in daily use, but when the screen is off you can clearly see small nicks and scuffs, despite us not putting the phone in a pocket with razor blades (or even keys and loose change).

If you’re thinking you can get away without a case when upgrading, the hardiness of the iPhone 12 Pro Max has definitely been improved, but it seems it’s still going to show signs of wear and tear if you don’t keep it protected.

iPhone 12 Pro Max camera

  • 12MP main, 12MP ultra-wide, 12MP telephoto cameras
  • Best photography iPhone
  • 12MP front-facing camera

The iPhone 12 Pro Max camera bump

The three-12MP camera system works well – it's the best on any iPhone (Image credit: TechRadar)

The biggest reason to upgrade to the iPhone 12 Pro Max sits on the rear of the phone: it's the camera array. Three 12MP cameras live here – standard wide, ultra-wide and the 2.5x telephoto zoom – and they’ve been upgraded from last year too, with Night Mode available for the ultra-wide sensor as well as the main shooter.

While you might think there's not much difference between the 12 Pro Max and the 12 Pro, Apple has set out to make the Pro Max the choice if you want to have the best camera experience on an iPhone.

It achieves that wholly with the huge new iPhone. The sensor is bigger inside (thanks to the larger dimensions) and that results in a camera that can absorb more light and take brighter, clearer pictures, one that once again nibbles away at the reasons you might have to have a separate camera.

The iPhone 12 Pro Max camera app

The heft of the 12 Pro Max isn't such that you can't hold it in one hand to take a snap (Image credit: TechRadar)

The result is simple: if you want to take the best pictures with an iPhone, you can't look anywhere else but the 12 Pro Max.

Apple has been making a big deal about 'computational photography', with the chipset inside the iPhone 12 range intelligent enough to know what it's looking at and alter the resulting image according. Deep Fusion, which debuted last year on Apple's iPhones, analyses images pixel by pixel to create the best possible result post-capture.

The new Smart HDR 3 capability looks for different scenes when the photo is taken, grabbing multiple exposures and stitching them together intelligently to give you the best picture, while Night mode, which requires you to keep the phone still for a varying amount of time (depending on the conditions) can turn a dark, gloomy setting into a rich and vibrant scene.

There's clearly an upgrade over the iPhone 11 Pro Max from 2019, especially in low light. Cropping in on those images taken in darker scenes shows that there's less noise, and the overall picture looks more vibrant.

Smart HDR this year finds more elements of the picture to improve and enhance, and as a result we took multiple pictures that we'd be pleased to put on the wall, with or without editing – that's always a good sign. 

We spent hours taking pictures with the iPhone 12 Pro Max alongside the iPhone 12 Pro and the iPhone 11 Pro Max, and some things became really clear during that comparison.

First, the iPhone 12 Pro Max’s larger sensor certainly lets in more light compared to the iPhone 11 Pro Max, and the vibrancy, clarity and detail in every photo is a real step forward. 

However, despite the Pro Max having a larger sensor than the iPhone 12 Pro, we often found little difference between the results of these two phones, which surprised us somewhat.

It’s clear that the 12 Pro Max is superior to 2019's Pro Max, with nearly every image showing a clear brightness, sharpness or just overall quality upgrade – and compared to phones like the iPhone 7 Plus (which we also had to hand), the power of 2020’s camera is startling even when looking at what 2021 offers.

Switching between the three cameras, from a wide to a full zoom, shows little change in the image quality between each, which is another upgrade from last year – images from the telephoto zoom look a little washed out, but the overall consistency between the three is impressive.

Apple has also reduced the ultra-wide camera’s distortion at the edges of the frame, with the corners looking less ‘bendy’ on flat images. It makes you more willing to use the wider camera to still get a decent picture that you’d want to use online.

However, one of the key things that Apple is talking up about Smart HDR 3, the artificially-intelligent ways it can interpret a photo and work out what’s sky, the object in the foreground and what light levels are needed, doesn't always work perfectly – while pictures of people are shown clearly against a brighter background, things like plants can remain a bit dark while the sky is well exposed.

We’re still in love with the editing options on the iPhone for improving the look of your photos. The on-board filters are good in range, and after-shot editing can really add some extra punch to image – these are things we still have a lot of fun playing with.

The addition of the LiDAR sensor on the iPhone 12 Pro and Pro Max is still technology that’s in its infancy on a smartphone, but it adds in the capability to take Night Mode portraits, and the effects are clear and far more vivid. The sensor is also supposed to improve the autofocus speed, but honestly we’ve never really had an issue with the speed there.

We did find that fast-moving images in low-light were hard to capture - such as someone jumping - but that’s not really a surprise, even though we were hoping that the LiDAR would help out here.

Talking of Night Mode, that’s one place where the iPhone 12 Pro Max really shines - the exposure is better-balanced this year. Night Mode can work for up to 30 seconds to really get dark scenes lit up when the lighting is really low and the camera is in a tripod, and at the full 30 seconds we saw a more even picture for the Pro Max, with detail nicely preserved.

You might expect that if you want to use the zoom lens in night mode, that it would actually use that telephoto lens. However, we found that the iPhone is still using the lower-aperture main sensor and digitally cropping the image, rather than using the optical zoom with night mode. It’s designed to get the best picture, and the main sensor is better at absorbing light (f/1.6 over f/2.2) but the results do pack more digital noise.

The other gripe we’ve got is that the selfie portrait mode, using the front-facing camera and has been around for years on the iPhone and is designed to add a background blur to your images for a more professional look, still can’t deal with stray hairs. It really ruins the effect, especially as most of us can’t have beautifully-dressed hair every second of the day. Or, well, ever.

However, the rear-facing cameras deliver a much punchier performance, and are especially impressive in mixed lighting conditions, with natural skin tones and good ability to bring out low-light detail.

The optical image stabilization, where the whole sensor moves to reduce judder when moving, is excellent, and combined with the new ability to record in Dolby Vision (a powerful form of HDR recording, which makes the difference between the darker and brighter elements of the video more pronounced) let’s you make some really clear and vibrant movies.

The videos captured in Dolby Vision have a brighter punch about them, but it can over-expose some areas - if you prefer your movies to be a bit more natural-looking then turning it off can be a good idea (especially if you want to save some storage on your phone, as the iPhone 12 Pro Max’s ability to record movies in 4K HDR at 60 frames per second takes a lot of data.

There’s no doubting that the iPhone 12 Pro Max is one of the best cameras that Apple has ever placed on one of its smartphones, but the distance between it and the standard 12 Pro isn’t as pronounced as we expected. We did get the best snaps on test from the Pro Max, with brighter and more colorful pictures appearing, but it also shows that the computational photography is a huge part of the process here - and that power is present on the 12 Pro and Pro Max in equal measure.

iPhone 12 Pro Max 5G, MagSafe, iOS and performance

  • MagSafe brings lots of functionality
  • One of the most powerful phones at launch
  • 5G provides fast data speeds

The headline feature of the iPhone 12 Pro Max is the camera, in our opinion, but the biggest changes come in the form of 5G and MagSafe being added to the entire iPhone 12 range.

We’ve already covered our findings in some depth in our iPhone 12 review and iPhone 12 Pro review, and what we’ve seen, in terms of the new features added, is they perform precisely the same on the 12 Pro Max.

In the interests of saving our fingers, we won’t go into the same depth here as we did in those reviews - we’d urge you to go and check them out to get our full thoughts - but here are the key things we found using these fancy new toys on the iPhone 12 Pro Max.


Apple was in a quandary with 5G - should it wait until the technology is mature and well-deployed around the world so most of its customers can connect to this ultra-fast, low-latency network? However, if it waited, it wouldn’t be able to have as much input on how the technology is deployed, and would have to spend more time adapting its phones to it.

Or does it go earlier, put 5G on every new phone and drive it in a direction that it wants, getting people hyped for this new technology… even though it’s not something many people can use, thanks to the 5G infrastructure being a long way from widespread?

The iPhone 12 Pro Max volume rocker

Our speed tests showed incredible top-end download speeds - but it's when 5G is widespread that this will come into its own. (Image credit: TechRadar)

It opted for the latter choice, and as a result it’s hard to say 5G is a key reason to buy the iPhone 12 Pro Max. Doing some speed tests proved that you can get some dizzying download rates, with 400Mbps clocked in and around London. Downloads of large apps and media were much more rapid than before, but it’s hard to say that we particularly struggled on 4G - it’s just faster with 5G.

To do any 5G testing, we also had to travel into a bigger city- we hardly live in the countryside, but 5G hasn’t landed where everyone lives, which means for many this will be a redundant feature. Apple has worked so that when 5G does soon roll out where you live, it’ll be a good bonus and your phone will be able to connect to it, but it’s not a massive reason to upgrade just yet - plus, as you’ll see, it does have an impact on battery life.


A MagSafe wallet on the iPhone 12 Pro Max

MagSafe is a neat innovation - although we're not fans of the wallet accessory. (Image credit: TechRadar)

We’re big fans of MagSafe as an innovation from Apple. If you’ve not heard about it yet, it’s a magnetic ring hidden in the rear casing of the iPhone 12 range, and you can easily clip chargers, cases and accessories onto the iPhone - opening up a realm of possibilities.

In the future, imagine snap-on gaming controllers, projectors, instant photo printers - Apple adding this to its range is going to inspire a number of accessory makers to really augment the iPhone. Already we’re seeing some new cases, car vent mounts and tripod add-ons appearing, making it simple to extend the functionality of the iPhone.

As MagSafe has a chip inside that can communicate with the iPhone itself, it can trust the connected device to not be acting improperly - which means things like the wireless MagSafe charger can deliver a faster wireless charge as the iPhone 12 knows it’s coming from a trusted source and won’t damage the battery.

We also got the chance to try the wallet snap-on, which pops on and off the rear of your phone to give you access to your bank cards. It came off a little easily for our liking, and it’s not ideal that you have to remove it every time you want to pay for something, but it’s another example of innovation.

The range of MagSafe accessories is already growing, and soon we’ll have things like PopSockets that will clip on magnetically to help you hold your iPhone more securely, and that magnet is a far better solution than a stuck-on pad that will lose stickiness over time.

Like 5G, MagSafe is a technology for the future, but a future that looks like it’s appearing in the next few months, rather than years.

iOS 15

The iPhone 12 Pro Max launched running iOS 14 but now supports iOS 15 being the latest version of its software. 

We won't spend long on this, as all remotely recent iPhones have the same software, but iOS 15 built upon iOS 14 adding SharePlay, improved FaceTime features, and a new Focus mode for dividing up notifications throughout the day. 

Smaller updates between iOS 14 and iOS 15 include things like Apple Fitness Plus, App Tracking Transparency, new emojis, and the ProRAW camera feature that was announced at launch. In all, iOS is the best it's ever been, but you don't need to spend this much to experience it.


The iPhone 12 Pro Max with apps next to the iPhone 12 Pro with apps.

We didn't encounter a single app the iPhone 12 Max couldn't handle (although Spotify kept glitching when we upgraded to iOS 14.2). (Image credit: TechRadar)

The iPhone 12 Pro Max was the most powerful iPhone we'd tested at launch, and it still performs fantastically. The iPhone 12’s A14 Bionic chipset remains fantastic when it comes to a smartphone CPU, so the 12 Pro Max is arguably still one of the most powerful. 

It’s a very close contest between it and the regular Pro, with both packing 6GB of RAM and an upgraded GPU, so you’d expect this device to smash every benchmark when it comes to multitasking and gaming.

It’s important to look beyond the raw numbers though, because it’s how it performs day to day that matters - but most flagship smartphones are capable of handling nearly any app you throw at them these days.

The blistering performance we found in the iPhone 12 Pro Max is the kind of performance one would expect from a phone at this price range, and given the range of apps that now run on the iPhone, from editing media to high-quality gaming, the ability to perform in any scenario is important - and we’ve not seen any evidence of slowdown in our testing.

iPhone 12 Pro Max battery life

  • Lasts a full day of use
  • Best battery life of the iPhone 12s
  • 30m of charging takes you to 48%

If you want the iPhone with the best battery life, the iPhone 12 Pro Max is the one to go for. The larger size means that it’s got extra capacity to play with, and it results in the best performance we’ve seen on the iPhone 12 range.

Generally battery life is quite close to the iPhone 11 Pro Max, which we’ve been using for the last year, but a lot will depend on whether you’re using it daily in and out of 5G range, or sitting more sedately in front of a desk at home.

Constant 5G connections were not actually something we could test regularly on the new iPhone, partly due to being currently in lockdown. But like on the iPhone 12 and 12 Pro, we did find some drop-off in the performance of the battery life when using 5G speeds - we saw that a 26-minute YouTube test on 5G took 7% of the battery, where the same test in 4G areas hit only 3% of the battery life.

This is hardly the most scientific of tests though, and was down to not being able to spend long in a 5G spot due to the current conditions - we’ll be giving it a more thorough test soon. However, the findings that 5G is more costly to battery life seem to be appearing on the 12 Pro Max as on other iPhones.

Apple will throttle your 5G speeds at times when it thinks you don’t need it, and mostly when you’re not directly using the phone in your hand (for streaming audio or updating apps, for example) in order to save battery. However, this will still display a 5G sign on the device when this is happening - so you won’t be aware when it’s being purposely slowed to save battery.

The biggest issue we had on the iPhone 12 and 12 Pro, with their smaller batteries, was that they would sometimes struggle to last until the end of the day, especially when not connected to Wi-Fi. The iPhone 12 Pro Max doesn’t have that same issue, even when being used for more resource-intensive tasks.

In fact, on the day we tried our hardest to run the battery down so we could conduct our charging test, we struggled to get it down that quickly. Copious amounts of Spotify, some streaming of 4K HDR content on YouTube, regular web browsing etc still took us until 7:30PM to get to absolute zero - and that was purposely hammering the battery intermittently through the day.

In more regular conditions in mixed Wi-Fi and 4G areas, with some camera use, Spotify on a 90 minute run and some YouTube testing, we found that we lost 60% of the battery in a 20-hour period. That’s a nice and slow descent, and in keeping with previous Plus / Max iPhone performance we’ve seen over the years.

The iPhone 12 Pro Max volume rocker.

It's surprising Apple didn't make the iPhone deeper to allow for a bigger battery - it wouldn't have felt that different in the hand. (Image credit: TechRadar)

If you do give in to the unfair push from Apple and go out and buy the 20W charger, you’ll get some speedy charging times, as our charge-up test found.

We plugged it in from dead, and we saw the iPhone 12 Pro Max hit 48% battery life in 30 minutes, which is only 2% less than Apple is claiming (and ours was still connected to an Apple Watch at the same time, which would mitigate that finding). The charging speed then slowed rather dramatically, with the final 20% taking a long time to complete.

Apple says that the iPhone will learn your charging habits over time and will apply the last bit of juice when it thinks the time is right, to save the health of the battery, but it means if you want to get as much power in as possible before a night out or the commute home, you’ll be a little limited initially.

Overall, while the battery life of the iPhone 12 Pro Max isn’t perhaps as strong as iPhone models from previous years (and many rumors suggest that the battery inside the new Pro Max is smaller than 2019's model, in order to fit in the 5G modem) it’s definitely the best of all the new iPhones, and if that matters to you, and you can handle the size of this model, you should go for the 12 Pro Max as your next device.

Should you buy the iPhone 12 Pro Max?

The iPhone 12 Pro Max next to its box.

Packing 5G and MagSafe, the 12 Pro Max has a number of future-proofed features. (Image credit: TechRadar)

Buy it if…

You want the best battery life

While adding 5G has definitely meant 2020’s iPhones have slipped backwards in battery life, the bigger chassis of the iPhone 12 Pro Max means you’re getting longer times between charges compared to the smaller 12 models.

You want the best iPhone camera… just

The pictures you can get from the 12 Pro Max are amazing at times - natural and sharp, and well-enhanced automatically. The larger sensor can absorb might light, but it doesn’t offer a huge improvement over the 12 Pro, which is a little surprising.

You fanatically consume media on your iPhone

The 6.7-inch OLED display is fantastic, and you’ll love watching movies on the go - especially if you combine the iPhone with a pair of AirPods Pro and get the Dolby Atmos experience wherever you are.

Don’t buy it if…

You want to keep costs down

Although it comes with more storage than the iPhone 12 (starting at 128GB, rather than 64GB), the 12 Pro Max is still rather expensive - this is a phone for those with deep pockets (literally).

You like a palm-friendly phone

This is a monster of a phone. If you want the extra screen and battery, you’ll love it. But if you want a more easy-to-hold iPhone, stay away from the Pro Max.

You use your phone placed on a table

The camera unit really protrudes from the rear of the 12 Pro Max - it wobbles on a table if you like tapping out a message without picking up your phone. It sounds small, but it’s something we kept noticing when reviewing.

Also consider

Has this iPhone 12 Pro Max review not convinced you? Check out these other devices you should consider.


iPhone 13 Pro Max
The 12 Pro Max's successor gets a 120Hz screen, bigger battery and newer chipset, and is basically the same in most other ways. It started at the same price, though being newer, it might cost a touch more.
Check out our iPhone 13 Pro Max review


iPhone 12 Pro
If you don't need a giant display, the iPhone 12 Pro Max's non-max sibling might be great for you - it's more affordable and won't stretch your hand as much.
Check out our iPhone 12 Pro review


Samsung Galaxy S21 Ultra
Samsung's Android super-phone came out just after the iPhone 12 series. It has five powerful cameras, a giant good-looking screen, a powerful chipset and faster charging than the iPhone.
Check out our Samsung Galaxy S21 Ultra review

First reviewed: November 2020

Gareth Beavis
Formerly Global Editor in Chief

Gareth has been part of the consumer technology world in a career spanning three decades. He started life as a staff writer on the fledgling TechRadar, and has grown with the site (primarily as phones, tablets and wearables editor) until becoming Global Editor in Chief in 2018. Gareth has written over 4,000 articles for TechRadar, has contributed expert insight to a number of other publications, chaired panels on zeitgeist technologies, presented at the Gadget Show Live as well as representing the brand on TV and radio for multiple channels including Sky, BBC, ITV and Al-Jazeera. Passionate about fitness, he can bore anyone rigid about stress management, sleep tracking, heart rate variance as well as bemoaning something about the latest iPhone, Galaxy or OLED TV.