Unlimited data SIM only deals
Every unlimited data SIM in our comparison, side by side: what it costs a month, how long you are tied in and whether the price rises mid-contract.
Our pickNo credit check
TalkMobile, Unlimited dataMoneyHQ may earn a commission if you take this deal. It never changes the price you pay or the order deals are shown in. How we make money
- One-month rolling
- Nothing upfront
- No mid-contract rise stated
Unlimited data on TalkMobile for £16 a month: no credit check, and you can leave with a month's notice.
How we chose it
The lowest monthly price among the one-month plans on this page from a network that states it runs no credit check on them. Read live from our comparison partner.
Talkmobile says no credit check is required for its SIM only deals. Read on Talkmobile's own site on 23 October 2026. Their own statement.
Sold by Talkmobile. MoneyHQ may earn a commission if you take it.
Quick answer · figures checked 2 November 2026
- What is the lowest price for an unlimited data SIM only deal?
- On 2 November 2026 the lowest we saw was £12.42 a month for Unlimited data on Three, 12 months. That deal states a rise: £14.72 from Apr 2027.
- How many unlimited data SIM only plans do you compare?
- 67 plans, from £12.42 to £48 a month, sold by 23 retailers including Mobile Phones Direct, mobiles.co.uk and Rewild Mobile. Data, price, network and contract length are on every deal.
Deals come from our comparison partner and MoneyHQ may earn a commission if you take one.
What each network really charges
Across 67 unlimited data plans, the lowest true monthly cost is £13.76 a month (Three, Unlimited data, £12.42 a month, 12 months).
By network
| Network | Plans | Lowest true cost a month | That plan |
|---|---|---|---|
| Three | 4 | £13.76 | Unlimited data, £12.42 a month, 12 months |
| iD Mobile | 12 | £14 | Unlimited data, £14 a month, rolling monthly |
| Rewild Mobile | 3 | £14 | Unlimited data, £14 a month, rolling monthly |
| Revolut | 1 | £14.99 | Unlimited data, £14.99 a month, rolling monthly |
| TalkMobile | 2 | £16 | Unlimited data, £16 a month, rolling monthly |
| smarty | 1 | £17 | Unlimited data, £17 a month, rolling monthly |
| Community Fibre | 1 | £17 | Unlimited data, £17 a month, rolling monthly |
| Lycamobile | 2 | £18 | Unlimited data, £18 a month, 24 months |
| Tesco Mobile | 4 | £18.12 | Unlimited data, £17 a month, 24 months |
| Asda Mobile | 3 | £19.79 | Unlimited data, £19 a month, 24 months, £19 upfront |
| Sky Mobile | 1 | £20 | Unlimited data, £20 a month, 24 months |
| Ecotalk | 1 | £22 | Unlimited data, £22 a month, rolling monthly |
| Mozillion | 3 | £22 | Unlimited data, £22 a month, 24 months |
| Lebara | 4 | £22.50 | Unlimited data, £22.50 a month, 12 months |
| Grade Mobile | 2 | £24 | Unlimited data, £24 a month, 24 months |
| giffgaff | 2 | £25 | Unlimited data, £25 a month, 18 months |
| O2 | 4 | £25.71 | Unlimited data, £23 a month, 24 months |
| Vodafone | 15 | £28.71 | Unlimited data, £26 a month, 24 months |
| VOXI | 2 | £35 | Unlimited data, £35 a month, rolling monthly |
By contract length
| Contract | Plans | Lowest true cost a month | That plan |
|---|---|---|---|
| Rolling monthly | 22 | £14 | iD Mobile, Unlimited data, £14 a month, rolling monthly |
| 12 months | 13 | £13.76 | Three, Unlimited data, £12.42 a month, 12 months |
| 18 months | 1 | £25 | giffgaff, Unlimited data, £25 a month, 18 months |
| 24 months | 31 | £14 | Rewild Mobile, Unlimited data, £14 a month, 24 months |
Price rises
23 of 45 fixed-term plans state a mid-contract rise. On the lowest of those, the rises add £16.10 over 12 months. The lowest with no stated rise works out at £14 a month (iD Mobile, Unlimited data, £14 a month, 12 months).
Unlimited data plans right now
67 plans, £12.42 to £48 a month. 22 rolling one-month. 23 state a mid-contract rise.
| Network | Data | A month | Contract | Sold by | Rise | Go to deal |
|---|---|---|---|---|---|---|
| Three | Unlimited data · 5G | £12.42 | 12 months | Mobile Phones Direct | £14.72 from Apr 2027 | Get deal: Deal on Three, £12.42 a monthMoneyHQ may earn a commission if you take this deal. It never changes the price you pay or the order deals are shown in. How we make money |
| iD Mobile | Unlimited data · 5G | £14 | Rolling | mobiles.co.uk | No mid-contract rise stated | Get deal: Deal on iD Mobile, £14 a monthMoneyHQ may earn a commission if you take this deal. It never changes the price you pay or the order deals are shown in. How we make money |
| Rewild Mobile | Unlimited data | £14 | Rolling | Rewild Mobile | No mid-contract rise stated | Get deal: Deal on Rewild Mobile, £14 a monthMoneyHQ may earn a commission if you take this deal. It never changes the price you pay or the order deals are shown in. How we make money |
| iD Mobile | Unlimited data | £14 | Rolling | Carphone Warehouse | No mid-contract rise stated | Get deal: Deal on iD Mobile, £14 a monthMoneyHQ may earn a commission if you take this deal. It never changes the price you pay or the order deals are shown in. How we make money |
| iD Mobile | Unlimited data · 5G | £14 | 12 months | mobiles.co.uk | No mid-contract rise stated | Get deal: Deal on iD Mobile, £14 a monthMoneyHQ may earn a commission if you take this deal. It never changes the price you pay or the order deals are shown in. How we make money |
| Rewild Mobile | Unlimited data | £14 | 12 months | Rewild Mobile | No mid-contract rise stated | Get deal: Deal on Rewild Mobile, £14 a monthMoneyHQ may earn a commission if you take this deal. It never changes the price you pay or the order deals are shown in. How we make money |
| Rewild Mobile | Unlimited data | £14 | 24 months | Rewild Mobile | No mid-contract rise stated | Get deal: Deal on Rewild Mobile, £14 a monthMoneyHQ may earn a commission if you take this deal. It never changes the price you pay or the order deals are shown in. How we make money |
| Revolut | Unlimited data · 5G | £14.99 | Rolling | Revolut | No mid-contract rise stated | Get deal: Deal on Revolut, £14.99 a monthMoneyHQ may earn a commission if you take this deal. It never changes the price you pay or the order deals are shown in. How we make money |
Read from our comparison partner’s feed on 2 November 2026. Providers set the prices and can change them. Tables built automatically by rules MoneyHQ sets: ordered by what deals cost, never by commission. How we make money.
Questions people ask
Do unlimited data SIM only prices rise mid-contract?
23 of the 67 plans state a rise, shown as a pound amount and a date on each deal. Rolling plans can change price with notice but carry no lock-in.