Get big data, 5G speeds & eSIMs from just £8/month
Looking to switch to a Three Mobile SIM only deal? Whether you’re after unlimited data, a cheap plan under £10, or just excellent value for money — we’ve picked the top 4 Three SIM-only offers this month.
All Three plans come with:
- ✅ 5G at no extra cost
- ✅ Free tethering
- ✅ eSIM support
- ✅ Access to the Three+ rewards app
1. Unlimited Data for £18/Month
Get full-speed unlimited 5G data for just £18/month on a 12-month plan.
🧾 Includes:
- Unlimited data
- Unlimited minutes & texts
- 12-month contract
- Price rises £1.50 each April
- eSIM supported
2. 120GB for £10/Month
Massive 120GB data plan perfect for heavy streamers and hotspot users.
🧾 Includes:
- 120GB 5G data
- Unlimited minutes & texts
- 12-month contract
- £1.50 annual price rise
- eSIM supported
3. 30GB for £8/Month – Best Budget Deal
Light user? This plan is perfect for socials, email and occasional video.
🧾 Includes:
- 30GB 5G data
- Unlimited minutes & texts
- 12-month plan
- £1.25 increase from April
- eSIM available
4. 60GB for £10/Month
A flexible, mid-range option ideal for most users.
🧾 Includes:
- 60GB 5G data
- Unlimited minutes & texts
- 12-month contract
- £1.25 annual price rise
- eSIM available
🧠 Need to Know: Price Increases
Three has switched to a fixed annual price rise model. Each plan will go up by either £1.25 or £1.50 every April while in contract. This is more predictable than inflation-linked hikes used by other providers.
🚀 Why Choose Three?
- One of the UK’s fastest 5G networks
- Generous data allowances at low cost
- Free tethering and personal hotspot use
- Quick activation with eSIM support
📍 View All Three SIM Plans
See every plan, updated daily →
🔗 olimit.co.uk/sim-only/three
🗨️ FAQs
Does Three offer eSIM plans?
Yes — all SIM-only plans are available with eSIM on compatible devices.
Can I keep my number when switching to Three?
Yes, just request a PAC code from your current provider and enter it when you sign up.
Is 5G included on Three plans?
Yes — 5G is included at no extra charge on all SIM-only deals.
