iD Mobile SIM only deals: the prices, the network, and the roaming

What iD Mobile SIM only deals were listed on 10 November 2026?

iD Mobile is the mobile network run by Currys. Its SIM only page had three contract lengths when we read it: 1 month (rolling), 12 months and 24 months. Every plan includes unlimited minutes and texts, and iD says there are no annual price rises on its SIM plans. The page carried a Black Friday banner, and several plans were half price for the first 3 or 6 months. We did not see an end date for those offers.

1-month rolling plans

12 and 24-month plans

Two things stand out. The half-price 12-month plans are the cheapest way into iD Mobile this month, but work out the full-year cost: the unlimited plan is £27 for the first three months, then £18 for nine, so £189 over the year. And the 24-month unlimited plan at a flat £17 is cheaper per month than the rolling unlimited plan at £18, in return for a two-year commitment.

This is desk research from iD Mobile's own pages. We have not bought or tested an iD Mobile plan.

What network does iD Mobile use?

Three. A footnote on iD Mobile's site says its 99% UK population 4G coverage figure is "based on the Three network". iD's coverage checker is the place to check your postcode before you sign.

What else comes with an iD Mobile SIM?

• Data rollover. Unused monthly data rolls over once into the next month and is used first. iD says rollover data expires after one month, and it works on all pay monthly plans.
• Bill capping. You can set a cap to limit charges beyond your plan, which is worth doing before a trip.
• Roaming in 50 destinations. Covered in detail below.

Can you get an iD Mobile eSIM?

Yes. The SIM only page says eSIM is available on all plans. You choose eSIM at checkout, and iD emails a QR code once the order is confirmed. Connect to Wi-Fi, follow the steps, and iD says the download can take about an hour. If you ordered SIM only, you can start as soon as the email arrives.

iD's eSIM page notes that its eSIMs are for phones only and do not currently work with tablets or wearables. You can check whether your phone supports eSIM by dialling *#06#: if an EID number appears, it does. Our eSIM compatible phones list covers the common models.

A physical SIM comes by post, and the SIM only page offers free delivery.

Does iD Mobile work abroad?

This is iD Mobile's strongest point for travellers. Inclusive roaming comes as standard on every plan, in 50 destinations. That list covers the EU, plus Norway, Iceland, Liechtenstein, Monaco, the Channel Islands, the Isle of Man and some less obvious places: Azerbaijan, Belarus, Kazakhstan and North Macedonia.

The data limit needs a careful read. iD's SIM only page says a 30GB roaming data limit applies. Its fair usage page says that from 1 October 2024 and until further notice, customers can use their full UK data allowance in its free roaming destinations, and that iD will tell you when the 30GB limit comes back. Both pages were live when we checked. Plan on 30GB and treat anything above it as a bonus.

Outside the 50, iD sells Roam Beyond data add-ons for 50 more destinations, including the USA, Canada, Australia, Switzerland, Turkey, Japan and Thailand. They start at £5 for 2GB for one day. Our iD Mobile roaming guide lists every country, every add-on price and the out-of-plan rates.

When is a travel eSIM cheaper than iD Mobile?

Inside the 50 free destinations, you will rarely need one. Up to 30GB of your own allowance at no extra cost covers nearly any holiday.

Outside them it is closer than with most networks. iD's Roam Beyond 10GB for 5 days costs £20. The travel eSIM prices we verified in August 2026 for the USA were $21.50 for Airalo's 10GB over 7 days and $22.99 for Saily's 10GB over 30 days. Once you convert, the eSIMs are a little cheaper and last longer, but the iD add-on needs no new eSIM and keeps your number working for data.

For a long trip, or anywhere outside both iD lists, compare our cheapest eSIM table.

Who does an iD Mobile SIM suit?

iD Mobile suits UK residents who travel in Europe a few times a year and want fixed prices with no annual rises. It also suits frequent visitors to Kazakhstan or Azerbaijan, which few UK networks include. The pages we read did not say what a non-resident needs to join, so a visitor is better off with a pay as you go SIM from our UK SIM card comparison.