Cheapest Data Only Sim Uk
9 ranked offers · category mobile sim · location uk
Best pick
Smarty — Data Only SIM
Monthly
£5.00
12-mo total
£5
Speed
— Mbps
Reviews
4.5★
Smarty — Data Only SIM scored 82/100 in aggressive mode. Price: 100/100 (£5/mo, 12-month total £5). Performance: 50/100 (? Mbps down). Reviews: 86/100 (4.5★ across 200 reviews). Friction: -0 (1-month contract). Key factors: Best-in-class price; Strong review history.
All ranked offers
| Rank | Provider · Plan | £/mo | Mbps | Reviews | Score |
|---|---|---|---|---|---|
| #1 | Smarty Data Only SIM | £5.00 | — | 4.5★(200) | 82 |
| #2 | giffgaff Data Only SIM | £6.00 | — | 4.4★(500) | 81 |
| #3 | Plusnet Data Only SIM | £8.00 | — | 4.1★(100) | 80 |
| #4 | Lebara Data Only SIM | £7.50 | — | 4.0★(50) | 79 |
| #5 | Asda Mobile Data Only SIM | £7.00 | — | 4.0★(20) | 78 |
| #6 | Three Data Only SIM | £10.00 | — | 4.2★(1,200) | 47 |
| #7 | Vodafone Data SIM Only | £11.00 | — | 4.1★(1,000) | 43 |
| #8 | EE Data SIM | £12.00 | — | 4.3★(900) | 41 |
| #9 | O2 Data Only SIM | £13.00 | — | 4.2★(800) | 36 |
How we ranked these
Each offer is scored across price, performance, reviews, availability and friction. For "Cheapest Data Only Sim Uk" we used aggressive mode — price weighted most heavily, but still requiring credible reviews and acceptable contract terms.
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