20£ a month
Get an Unlimited data SIM for only £20 a month
- Truly Unlimited Data on the UK’s Fastest 5G Network
- 5G ready, with eSIM and physical SIM support
- £20.00 per month, increasing to £22.30 from Apr 27 and £24.60 from 1 Apr 28
Let fun in
Phone, Broadband and SIM Only deals
Get phones, tablets, Mobile Broadband and SIM Only deals on the UK’s Fastest 5G Network – all in one call.
- £20Unlimited data SIM
- £300when you switch broadband
- £11bninvested in the network
SIM Only and Home Broadband deals
18£ a month
Get Three’s Home Broadband for only £18 a month
- Plus claim £300 if you switch to our 24-month plan
- Super easy switching – we’ll talk you through your options
- £18.00 a month, increasing to £21.50 from 1 Apr 27 and £25.00 from 1 Apr 28
Why choose Three?
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Let fun in with Three
The nation’s biggest network keeps getting better. With £11bn investment, it’s even easier to say yes when the moment hits – Three runs on the Nation’s Network, the combined Vodafone and Three network. Whether you want a new phone, Truly Unlimited data, Home Broadband or Mobile Broadband, one call gets you the latest deal with the price and the savings confirmed before you commit.
View more reasonsOn the Nation’s Network
The nation’s biggest network keeps getting better, with £11bn investment behind it and the combined Vodafone and Three network at your back.
More about our networkThree+ rewards
Our rewards app brings you treats from the UK’s biggest brands. And you can get a barista-crafted drink for £1 every week at 100s of local cafés too.
Discover Three+Three Your Way
Say hello to mobile done your way. Choose your device and how much to pay upfront, customise the length of your plan to control your spend, then pick your extras.
Find out moreSwitching to Three
It’s super easy to switch your Home Broadband to Three – and you can claim £300 when you move to our 24-month plan. We’ll walk you through cancelling with your current provider.
Truly Unlimited Data on the UK’s Fastest 5G Network
No caps, no limits and 5G ready – on phones, tablets, Mobile Broadband and Home Broadband. Add Data Travel Passes and Add-ons whenever you need them.
See SIM Only dealsTrade in and save up to £876
Save up to £876 and go unlimited when you trade in an eligible phone. Popular deals include the Samsung Galaxy S26 Ultra (save up to £756), iPhone 17 Pro Max (save up to £469), Motorola Razr Fold (save up to £918) and HONOR Magic8 Lite (save up to £558) with selected airtime plans.
Get this offer – call 0800 007 4924My3 made simple – just give us a call
- Check when you can upgrade
- Manage your account
- Top up your credit
- Add a Data Travel Pass
- Claim your Three+ rewards
- Check bills and charges
- Talk through your latest plan
Customer reviews
What Three customers say
Verified
Truly Unlimited for £20 is unbeatable
The advisor confirmed the £20 price and the April increases before I signed up. I stream on the commute every day and have never once been throttled.
Jade D.Unlimited SIM Only · Liverpool
Verified
£300 landed after I switched broadband
Moved my Home Broadband over on the 24-month plan and claimed the £300 exactly as the advisor explained. Setup was genuinely easy and the speeds are what we were told.
Owen B.Home Broadband · Swansea
Verified
Trade-in knocked £800 off the Galaxy
My old handset was worth far more than I expected. The saving came straight off the monthly cost and I went unlimited at the same time.
Rehan S.Pay Monthly · Bradford
Verified
Three Your Way let me set my own term
I picked the upfront amount and the plan length that suited my budget rather than being pushed into 36 months. Four stars only because the delivery slot moved by a day.
Katie A.Three Your Way · Coventry
Verified
Three+ pays for itself in coffee
The £1 barista drink every week adds up, and there are decent brand offers in the app on top. Small thing, but it makes the plan feel better value.
Liam M.Three+ rewards · Belfast
Verified
Mobile Broadband sorted the new flat
We couldn’t get a line installed for six weeks, so they set me up with Mobile Broadband instead. Online the same afternoon and I kept it as a backup.
Fiona A.Mobile Broadband · Aberdeen
Verified
Student discount on top of the SIM deal
Rang up expecting a hard sell and got a straight answer about which plan actually suited my usage, plus the student discount applied without me having to push for it.
Hasan N.Student deal · Leicester
Verified
Data Travel Pass added in minutes
Called the day before flying and had a travel pass on my account before I hung up, with the allowance explained properly. No nasty bill when I got home.
Paul C.Data Travel Pass · Brighton
Want the same deal these customers got?
Call 0800 007 4924
On the Nation’s Network
0800 007 4924
Ready to switch? Talk to us today
Pay Monthly phones, SIM Only deals, Home Broadband and Mobile Broadband – one call sorts it.