Network vs network
iD Mobile vs SMARTY
Same masts, different deals. We compare price rises in pounds, roaming, credit checks and today’s cheapest SIMs on both.
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Do they use the same masts?
Yes — coverage is effectively the same, so choose on price and extras.
Which one raises prices?
iD Mobile: None on SIM only; phone plans +£1.80. SMARTY: No annual rise.
Which is better abroad?
iD Mobile: 50 countries included, 30GB. SMARTY: EU included, 12GB.
iD Mobile£144
SMARTY£144Cheapest SIM with 10GB or more × 24, plus April rises
Live prices; rises estimated for a plan starting this month.
Over 24 months, the cheapest 10GB+ SIM costs £144 on iD Mobile and £144 on SMARTY once April rises are added, about the same. Both run on the same masts.
Prices checked 27 October 2026 · facts checked monthly · How we compare
iD Mobile vs SMARTY, side by side
| iD Mobile | SMARTY | |
|---|---|---|
| Masts | Three | Three |
| Annual price rise | None on SIM only; phone plans +£1.80 | No annual rise |
| Roaming | 50 countries included, 30GB | EU included, 12GB |
| Credit check | Hard check | None |
| eSIM | Yes | Yes |
| Wi-Fi Calling | Yes | Yes |
| Cheapest SIM, 10GB+ | £6 a month | £6 a month |
| Cheapest SIM, 30GB+ | £7 a month | £7 a month |
| Cheapest SIM, Unlimited | £14 a month | £17 a month |
Highlighted = better on that line. Facts from network terms and Ofcom; prices live.
Our verdict
On price they are level for a typical 10GB+ SIM: about £144 over two years each, April rises included.
Because both use the same masts, coverage is identical — the choice comes down to price, price rises and extras.
iD Mobile and SMARTY SIM only deals, live
FAQ
iD Mobile vs SMARTY questions
Is iD Mobile or SMARTY cheaper?
About the same today: the cheapest 10GB+ SIM costs around £6 a month on both.
Do iD Mobile and SMARTY use the same network?
Yes, coverage is the same.
Which has better roaming?
iD Mobile: 50 countries included, 30GB. SMARTY: EU included, 12GB.
Can I switch from iD Mobile to SMARTY and keep my number?
Yes. Text PAC to 65075 from your iD Mobile phone, give the code to SMARTY, and the number moves within one working day.