Partner of the Month: Commercial Partner: Google Workspace: Google Workspace is our featured commercial partner for this placement. When this disclosure is absent, featured products and brands are evaluated solely through our independent editorial standards and cannot be bought.
Save up to 15% on Google Workspace with custom business email & Gemini AI
Currys-Backed UK 5G Mobile Network and SIM Deals
Save with this verified iD Mobile deal on the Samsung S26. Click the button and follow the instructions on the landing page.
Claim this iD Mobile deal on iPhone 18 Pro Max. Click the button and follow the instructions on the landing page.
Secure this verified iD Mobile offer on iPhone 17. Click the button and follow the instructions on the landing page.
Secure the new iPhone 18 Pro with 100GB of data for £44.99 per month at iD Mobile. This iD Mobile offer includes free delivery and trade-in bonuses. Click the button and follow the instructions on the landing page.
Pre-order the brand new iPhone 18 Pro from just £38.99/month on iD Mobile. Enjoy high-speed 5G data powered by the Three network, free inclusive roaming in 50 destinations, and zero annual price rises.
Pre-order the new Pixel 11 from £25.99 per month with this iD Mobile offer. Click the button and follow the instructions on the landing page.
Get massive data starting at £6 per month with this iD Mobile deal. Click the button and follow the instructions on the landing page.
Get Unlimited 5G Data for just £16/month with iD Mobile. Features unlimited calls and texts, free data rollover, inclusive EU roaming in 50 destinations, and no annual price rises.
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Launched in May 2015 by high-street electrical retail giant Currys plc (LSE: CURY), iD Mobile has established itself as one of the UK’s premier Mobile Virtual Network Operators (MVNOs), serving over 2.5 million active subscribers nationwide. Operating across Three UK’s high-speed network infrastructure with 99% outdoor population coverage, iD Mobile delivers high-allowance 4G and 5G mobile connectivity without the steep monthly bills associated with legacy network operators. With flexible SIM-only tariffs starting from just £6 per month, the carrier caters to cost-conscious smartphone users seeking premium network features at everyday prices.
Whether searching for a contract-free 30-day rolling SIM, upgrading to a 24-month data plan, or pairing your service with the latest Apple or Samsung handset, securing a verified iD Mobile Promo Code unlocks promotional monthly rates, bonus data allowances, and valuable retail perks. Our telecommunications review at BudgetFitter confirmed that every iD Mobile tariff comes equipped with free automatic Data Rollover, inclusive roaming across 50 worldwide destinations, and robust Ofcom-compliant bill capping to prevent unexpected charges.
iD Mobile provides a feature-rich mobile experience designed around consumer flexibility and network performance:
Compare monthly pricing, data rollover flexibility, and network infrastructure across leading UK value network providers:
| Mobile Network & Host | Contract Flexibility Options | Data Rollover & Roaming Rules | Key Consumer Advantage |
|---|---|---|---|
| iD Mobile (Currys / Three UK) | 1-Month, 12-Month & 24-Month Contracts | Free Automatic Rollover + Inclusive EU Roaming (50 Destinations) | Cheapest starting tariffs (£6/mo), Currys handset backing & Ofcom bill capping |
| SMARTY (Three UK) | 30-Day Rolling Only | No Rollover (Unused Data Discount on Select Plans) | Simple 1-month plans and 12GB EU roaming cap, but fewer handset financing options |
| giffgaff (O2 Network) | Monthly Rolling & 18-Month Contracts | No Data Rollover (5GB EU Roaming Limit) | Flexible community model but slower average 5G speeds and lower EU roaming cap |
| 1pMobile (EE Network) | 30-Day Bundles & Pure PAYG | No Rollover (EE Network Speeds) | Fastest UK network coverage via EE infrastructure, but higher monthly data tier costs |
Maximise your mobile value and avoid contract pitfalls with these verified tips from BudgetFitter’s telecom specialists:
Switching your mobile provider and activating your new tariff takes five straightforward steps:
To discover more savings across broadband, voip & mobile contracts, explore BudgetFitter’s canonical Broadband, VOIP & Mobile Contracts Hub. Shoppers and professionals investing in iD Mobile can also optimise everyday value with verified complementary lifestyle and workflow partners, including Getscreen for enterprise cloud storage and team collaboration, Meross for ergonomic desk setups and lumbar support, Dashlane for automated GDPR compliance and business legal protection, Fiverr for online tutoring, language mastery, and career coaching. and Google Workspace for exclusive 15% discounts on custom business email and Gemini-powered cloud tools.
Clear answers on iD Mobile voucher codes, checkout terms, and verified savings.
iD Mobile operates as a Mobile Virtual Network Operator (MVNO) powered by the Three UK network infrastructure. This provides iD Mobile customers with 99% 4G outdoor population coverage alongside access to fast 5G data speeds across hundreds of UK towns and cities at no extra monthly cost.
All iD Mobile SIM-only and phone contracts include automatic Data Rollover. Any unused monthly data allowance from your billing cycle automatically transfers into the following month, providing an extra buffer before your new standard allowance begins to be consumed.
Yes. iD Mobile provides inclusive 'Roam Like At Home' coverage across 50 international destinations (encompassing EU countries, Norway, and Iceland). You can use your standard UK minutes, texts, and monthly data allowance (subject to a generous 30GB fair usage policy) without roaming fees.
Switching your number to iD Mobile is simple and free. Text 'PAC' to 65075 from your current network SIM to receive your 9-digit Porting Authorisation Code instantly. Once your new iD Mobile SIM arrives, submit the PAC code via your online account or mobile app to transfer your number within 24 hours.
Bill Capping allows iD Mobile customers to set a strict limit on out-of-plan spending (from £0 up to £25 per month). This completely prevents unexpected charges from premium rate numbers, international calls from the UK, or exceeding standard usage allowances.
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