iD Mobile SIM-only deals

34 plans, sorted by average monthly cost. Checked against iD Mobile’s website on 17 August 2026.

iD Mobile runs on Three’s network — same coverage, usually for less. Its plans include 5G, eSIM and Wi-Fi calling.

iD Mobile

iD Mobile runs on Three’s network — same coverage, usually for less. Its plans include 5G, eSIM and Wi-Fi calling.

Show 12 more iD Mobile deals — each beaten on price or data by one above

Cheapest iD Mobile plan is £6.00/mo. iD Mobile runs on Three's network — compare it against every other provider using the same masts.

iD Mobile FAQ

How much is iD Mobile?

The cheapest iD Mobile SIM-only plan is £6.00/mo (25GB, monthly rolling). iD Mobile sells 34 plans in total, and I check every price against iD Mobile's own site daily.

What network does iD Mobile use?

iD Mobile is an MVNO: it runs on Three's masts, so you get the same signal and coverage as Three, usually at a lower price.

Can I use iD Mobile abroad in the EU?

iD Mobile includes EU roaming. Inclusive roaming in 50 destinations comes as standard on all plans at no extra cost.

Does iD Mobile have 5G?

Yes — iD Mobile includes 5G. 5G is included on all SIM-only plans at no additional cost.

Does iD Mobile support eSIM?

Yes — iD Mobile supports eSIM. iD Mobile offers eSIM on its SIM-only plans.

Does iD Mobile put prices up mid-contract?

iD Mobile does not raise prices mid-contract. Promises no annual price rises on SIM-only plans (30-day, 12- and 24-month). Applies to SIM-only, not handset contracts.

Also using the Three network

You can get the same underlying coverage from SMARTY, simp mobile, Superdrug Mobile, Honest Mobile and Three, although prices, speeds, roaming and customer support differ. See the networks on Three →

Compare UK networks side by side →

Feature and price data is checked by Scrimpr against iD Mobile's own site and public documentation. Networks change plans often — always confirm details on the provider's site before buying. Some links are affiliate links (marked *), which support Scrimpr at no cost to you.