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 X 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 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 | £42pm
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 £1057
The best Samsung Galaxy S9 deals on Three:
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 | £29.99 upfront | 4GB data | Unlimited minutes and texts | £35pm
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 £869.99
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:
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 | 1GB data | Unlimited minutes and texts | £51pm
If you're more interested in the overall cost than you are a bulky data allowance (and don't want to pay an astronomical fee upfront), then Three is the network that's setting the standard for iPhone XS deals. You only get 1GB of data a month, but the monthly cost is just a tad over £50. This may well suit, if you're not interested in streaming videos and music to your smartphone. Total cost over 24 months is £1,323
iPhone X 64GB | £79 upfront | All-you-can-eat data | Unlimited minutes and texts | £52pm
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. And the price just fell dramatically, making AYCE bizarrely one of the best value iPhone X options out there right now. Total cost over 24 months is £1327
The best Samsung Galaxy Note 9 deals and Note 8 deals on EE:
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 | £99 upfront | 1GB data | Unlimited minutes and texts | £44pm
The Three network is setting the early pace for cheap Note 9 deals - nobody else really gets close to the total two year cost Three can offer. You also get the benefit of its Wuntu rewards app for cheap coffees and dinners. A nice little perk. Just watch that meagre 1GB data allowance though, and go for something below if you know you'll need more. Total cost over 24 months is £1,155
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 away from the Wi-Fi. Total cost over 24 months is £1687
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 £1543
The best iPhone 7 deals on Three mobile:
The new iPhone 7 is another smash hit mobile phone from Apple thanks to further design enhancements. It's now waterproof, has a better screen and stereo speakers. The long-rumoured dropping of the headphone jack has become a reality. Memory capacity has been given a boost now, with the smallest models now starting at a much more spacious 32GB.
iPhone 7 32GB | £49 upfront | Unlimited calls and texts | 4GB data | £33 per month
They say that all good things must come to an end, and that's certainly the truth when it comes to iPhone 7 deals on the Three network. You only get 4GB of data per month for a not unsubstantial amount of money over the two years. We'd simply recommend that you go for another network instead (unless you need unlimited data). Total cost over 24 months is £841
iPhone 7 32GB | £44.99 upfront | Unlimited calls and texts | All-you-can-eat data | £40 per month
Three can't generally compete on iPhone 7 deals at the moment. Until, that is, you crank things up to all-you-can-eat data. OK, so it's at a bit of an unfair advantage as the only major network offering unlimited data, but the price of tariffs just fell. Making this pretty good value all of a sudden. Total cost over 24 months is £1004.99
Best Samsung Galaxy S8 deals on Three mobile:
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.
Samsung Galaxy S8 | £49 upfront | 1GB data | Unlimited minutes and texts | £20pm
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 £529
Samsung Galaxy S8 | FREE upfront | 4GB data | Unlimited minutes and texts | £25pm
Let us give you just a few reasons why we love this Samsung S8 deal on Three. First, you don't have to pay a penny upfront. In fact, Affordable Mobiles will actually give you £50 cashback. 4GB is a really nice place to be for data each month for most users. And £25 per month is very tempting indeed, no? Total cost over 24 months is £600
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
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