Independent Guide — Data Rollover & No Price Rises
📞 Ask us about iD Mobile →iD Mobile is an MVNO owned by Currys plc (the UK's largest electrical retailer) and runs on Three's (now VodafoneThree's) network. Launched in May 2015, iD Mobile has grown to over 2.2 million subscribers and is the UK's fastest-growing MVNO, targeting 2.5 million+ by end of 2026. iD Mobile is known for data rollover on all plans, inclusive roaming in 50 destinations, and a written pledge against CPI/RPI price rises on SIM Only plans. Sold online and through Currys stores nationwide.
We don't display live prices as they change often — check iD Mobile's website for today's offers. Below we explain how each plan type works.
iD Mobile SIM Only plans are available on 1-month rolling, 12-month and 24-month contracts. Data ranges from 6GB to 300GB and Unlimited. Data Rollover included on all plans — unused data moves to the following month. No CPI or RPI annual price rises on SIM Only plans (iD's own pledge). Inclusive roaming in 50 destinations. Bill capping available to prevent unexpected charges. Plans start from around £6/month.
iD Mobile handset contracts (24 months) cover all major devices: iPhone 17, Samsung Galaxy S25, Google Pixel. Bill capping also applies to handset plans. iD Perks loyalty programme (launched 2025) offers discounts on Currys products and other rewards. In-store support available at Currys nationwide.
iD Mobile PAYG not available in the traditional sense — iD focuses on rolling 1-month SIM Only plans as the flexible no-commitment option. These offer similar benefits (data rollover, no contract) without a long-term tie-in.
iD Mobile supports eSIM on compatible devices. Activate via the iD Mobile app. Works on iPhone XS+, Samsung Galaxy S20+, Google Pixel 3+. eSIM available on rolling and 12-month plans.
iD Mobile runs on Three's network (VodafoneThree), providing approximately 99% 4G population coverage and access to Three's 5G network — which achieves the fastest 5G speeds in independent tests (though coverage at 62% population is less extensive than EE or O2's 5G). Underground coverage in some London tube stations via Three's network.
iD Mobile includes inclusive roaming in 50 destinations on eligible plans — EU countries plus popular non-EU destinations including USA, Canada, Australia, New Zealand, and more. A 30GB fair-use roaming data cap applies. This is one of the most generous roaming inclusions among UK MVNOs — particularly for customers who travel beyond Europe.
All iD Mobile plans include data rollover — unused data moves to the next month so you never waste what you've paid for.
iD's written pledge: SIM Only plans are not subject to annual CPI or RPI price increases. Your price stays fixed.
Inclusive roaming in 50 countries (EU + popular worldwide) with 30GB fair-use cap — one of the best MVNO roaming offers.
Set a maximum spend cap — iD will alert you and stop charging when you reach it, preventing bill shock.
Buy and get help in-store at Currys locations across the UK — a real-world service channel most MVNOs lack.
Loyalty rewards programme offering discounts on Currys products, entertainment, and partner offers.
Our independent team covers all 12 major UK networks — call us or drop a message and we'll guide you honestly.