Three mobile has for a long time been well known in the UK for offering good deals, especially for customers looking for some seriously big data bundles. In the early days, the network was blighted by poor reception in many areas but these days Three mobile doesn't have any such issues and its prices can be stellar.
So take a look at our comparison tool to see what you can get for your money with Three. And below that we've also handpicked the best the network has to offer on flagship handsets such as the iPhone XR and Samsung Galaxy S9.
And if you're perfectly happy with your current handset but are at the end of your contract, then we heartily recommend that you consider the 30GB Three SIM only deal for less than £20 per month - it won the Mobile Choice Consumer Award 2017 for Best Phone Deal.
Want to browse the best phone deals at other networks too? Simply head over to our best mobile phone deals page.
The best iPhone XR deals on Three Mobile:
The iPhone XR hits a sweet spot between high tech and reasonable pricing. It looks a lot like its more powerful brethren - both in appearance and on the spec sheet - and boasts a glorious 6.1-inch Liquid Retina display and A12 Bionic chipset without a £1,000 price tag.
iPhone XR | Three | £99 upfront | 1GB data | Unlimited minutes and texts | £44pm
Three isn't yet that competitive on the iPhone XR, unless of course your're looking for an unlimited data deal (more on which below). This is the cheapest you can get it in the early running, but there are cheaper low data tariffs available from other networks at the moment. Total cost over 24 months is £1,115
iPhone XR | Three | £99 upfront | All-you-can-eat data | Unlimited minutes and texts | £50pm
Well this is a lot more affordable than we thought it would be. Three was always going to be the network offering all-you-can-eat data, but we assumed the monthly price would be waaaaaaay over £50. The upfront spend is reasonable too. So if it's all the data you need, it's all the data you'll get with Three. Total cost over 24 months is £1,299
The best Samsung Galaxy S9 deals on Three Mobile:
OK, so the Samsung Galaxy S9 doesn't make massive strides on the S8, but that doesn't mean it's not still one of the premier Android phones on the market. The cameras in particular are awe inspiring and tangible improvements have been made to the biometrics and position of the fingerprint scanner.
Samsung Galaxy S9 | £54.99 upfront | 4GB data | Unlimited minutes and texts | £36pm
Three isn't usually exactly what we'd call 'cheap' when it comes to the Samsung Galaxy S9, and this most affordable tariff used to include a mighty 30GB of data a month rather than the much more meagre 4GB it now demonstrates. All our love for Three right now is for the incredible AYCE price below. Total cost over 24 months is £918.99
Samsung Galaxy S9 | £79 upfront | All-you-can-eat data | Unlimited minutes and texts | £41pm
Three may not have the pricing fire power of the other networks, but it does have a handy trick up its sleeve to persuade you to grab your new S9 contract with the numerical network. This tariff gives you absolutely unlimited data - the kind of volume other networks just can't reach. And the price just came down to an all-time low. Total cost over 24 months is £1063
The best iPhone XS deals and iPhone X deals on Three Mobile:
Oh gosh, Apple went and did it. After years upon years of incremental upgrades, it finally made something special to celebrate the 10th anniversary of the iPhone. For the iPhone X it has dropped the bezel altogether, while the 5.8-inch Super Retina HD is scarily good - and then it tweaked things a year later for the XS. Marvellous!
iPhone XS | £99 upfront | All-you-can-eat data | Unlimited minutes and texts | £61pm
If you're going all out on the phone, then it makes sense to go all in on data, too, eh? If that sounds like your mindset, then this is the deal you're going to want to see. Directly from the Three network (the only major purveyor of unlimited data deals), the upfront spend is fair and the monthlies nowhere near as bad as you may probably feared. Total cost over 24 months is £1,563
iPhone X 64GB | £99 upfront | All-you-can-eat data | Unlimited minutes and texts | £53pm
If you want unlimited data on the iPhone X then Three was always going to be your go-to network. We can't imagine you'd even be considering this if you wanted something cheap - all that streaming, surfing and downloading comes at a cost. The price for AYCE just got a reduction as well so now represents even better value. Total cost over 24 months is £1371
The best Samsung Galaxy Note 9 deals and Note 8 deals on Three mobile:
Samsung has now well and truly put the flaming memory of the Note 7 behind it. If the Note 8 was exceptional (6.3-inch infinity display and 6GB RAM), then the Samsung Galaxy Note 9 is even bigger and better (6.4-inch infinity display and 8GB RAM). If you want the best big screen Android phones on the market, then look no further.
Samsung Galaxy Note 9 | £79 upfront | All-you-can-eat data | Unlimited minutes and texts | £67pm
If you honestly, positively, absolutely need unlimited date each month, then Three is your only option when it comes to Galaxy Note 9 deals. The jump in price is quite significant, mind - so do make sure that it's essential to have limitless Netflix, Spotify and downloading access. Total cost over 24 months is £1,687
Samsung Galaxy Note 8 | £79 upfront | Unlimited data, minutes and texts | £61pm
Darn...Three's all-you-can eat data Samsung Note 8 deal reduction just came to an end, so the price has just jumped by around £200 over the two year term again. But Three is the only network that can offer uncapped data, so you have no option but to sign up with this deal if it's all-you-can-eat that you crave. Total cost over 24 months is £1,543
The best iPhone 8 deals on Three mobile:
Thanks to the spectacle that was the iPhone X launch, the reception for the iPhone 8 was a little bit flat. Perhaps unfairly - it improves on the iPhone 7 with wireless charging and an improved camera. Plus, it's quite a bit cheaper. So if you're looking for the best iPhone but balk at the iPhone X expense, try the 8 on for size instead.
iPhone 8 64GB | £49 upfront | All-you-can-eat data | Unlimited calls and texts | £43pm
Oh yes! Three just knocked almost £500 off its unlimited data iPhone 8 tariff, finally making it worth while to go all-you-can-eat. So you don't have to worry about overspending on those Netflix binges and Spotify streaming marathons. This is excellent work from Three on all-you-can-eat. Total cost over 24 months is £1081
Best Samsung Galaxy S8 deals on Three mobile:
Samsung Galaxy S8 | £49 upfront | 1GB data | Unlimited minutes and texts | £23pm
This is currently the cheapest way to buy the Galaxy S8 on Three. In fact, it's one of the cheapest ways to buy it from any network right now. We're delighted by this S8 price crash on the numerical network. Total cost over 24 months is £601
Samsung Galaxy S8 | £19.99 upfront | 4GB data | Unlimited minutes and texts | £25pm
4GB is a really nice place to be for data each month for most users. And £25 per month is very tempting indeed, no? Nice little S8 deal from Affordable Mobiles, this. Total cost over 24 months is £619.99
Samsung Galaxy S8 | £49 upfront | All-you-can-eat data | Unlimited minutes and texts | £38pm
Three, you little beauty! Big data on S8 deals just got much more affordable thanks to the network's price crash. So now you can get unlimited data and pay less than a grand over the life of the contract. £38 per month isn't bad at all considering the quality of the phone and sheer amount of data. Total cost over 24 months is £961
There's no doubt that the Samsung Galaxy S8 is a fantastic phone. The lightning fast chip-set and abandonment of a large bezel around the screen makes it the premier Android experience. And now that the S9 is here, it's no longer even that expensive.
The best iPhone SE deals on Three mobile:
The iPhone SE looks and feels exactly the same as the iPhone 5S. But instead of sporting two-year-old hardware it's been updated, with a faster CPU and graphics, and the 12MP iSight camera straight out of the iPhone 6S. It's a modern iPhone in the shape of an old iPhone, for people who like the old iPhones but want more up-to-date hardware.
iPhone SE 32GB | £19 upfront | Unlimited calls and texts | 1GB data | £17pm
You'll pay less than £20 upfront for this iPhone SE deal direct from the Three network, and from there you're laughing with a £17 monthly fee, 2GB of data and unlimited calls and texts. You'll end up spending just less than £450 over the two year contract AND have the warm cosy feeling of buying directly from the network. Total cost over 24 months is £427
iPhone SE 32GB | £19 upfront | Unlimited minutes | Unlimited texts | 30GB data | £28pm
We honestly thought that Three was a spent force when it came to big data deals on the iPhone SE. But this deal from the network itself means that Three has returned to form. Here you pay less than £30 per month and only £20 upfront for 30GB of data. That's a real winner, in our eyes. The total cost of this deal over 24 months is £691