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EE-based MVNO that sells phone contracts, SIM-only plans, and refurbished phones with uncapped 5G speeds and free EU roaming.
£5 off any Samsung phone at Mozillion
Take £5 off any Samsung phone at Mozillion, code valid on pay monthly phone contracts and SIM free phones.
Terms: Valid on SIM free phones and pay monthly phone contracts.
Ends 31 Aug 2026
£5 off any Apple iPhone at Mozillion
Take £5 off any iPhone with code APPLE5. Available on phone contracts and SIM Free phones.
Terms: Valid on phone contracts and SIM free phones.
Ends 31 Aug 2026
Mozillion is a UK mobile provider running on EE's network that combines SIM-only plans, phone contracts, and a refurbished phone marketplace into a single platform. Based in Brighton, the company has grown to over 6,400 Trustpilot reviews since launch.
What distinguishes Mozillion from most MVNOs is that it actually sells phone contracts with handsets, including both new and refurbished devices. Customers can buy a Samsung Galaxy S26 or iPhone 17 on a pay-monthly plan, or pick up a quality-tested refurbished phone with a 90-point lab guarantee. This puts Mozillion closer to a full mobile retailer than a typical SIM-only MVNO.
All plans run on EE's network with uncapped 5G speeds, a notable advantage since EE itself caps speeds on most of its own plans. EU roaming is included on all plans across 41 countries, and the company guarantees no mid-contract price rises.
Mozillion provides coverage through EE's network, identical to direct EE customers. EE has the widest 4G coverage in the UK at approximately 99.8% population coverage and 5G coverage continuing to expand through 2026, expanding towards 99% by 2030.
Mozillion offers SIM-only plans on 30-day rolling, 12-month, and 24-month contracts, plus pay-monthly phone contracts with new and refurbished handsets. All plans include unlimited calls and texts, uncapped 5G, EU roaming, and no price rises.
EU roaming is included free on all plans across 41 countries with unlimited calls and texts. Data roaming is capped at 25% of the monthly allowance on 3GB to 100GB plans, 50% on the 1GB plan, and 25GB on the 500GB and unlimited plans. For non-EU countries, Mozillion offers a wallet top-up system and separate travel eSIMs covering over 200 countries.
Mozillion is a well-rounded mobile provider that offers more than the typical MVNO. The combination of uncapped 5G on EE, free EU roaming, phone contracts, and a refurbished phone marketplace creates a compelling package, particularly for customers who want a one-stop shop for both a device and a plan.
The pricing is competitive across the board, and the no-price-rise guarantee adds welcome certainty. The 4.3 Trustpilot rating from over 6,100 reviews indicates generally reliable service.
Account management is handled through a comprehensive self-service web dashboard - covering data usage, payment details, plan changes, extra data, number transfers and eSIM setup - backed by UK customer service seven days a week across phone, email and live chat. The main gap is the lack of a dedicated app for managing your SIM (the Mozillion app powers the Kill Your Bill rewards scheme rather than account management), something customers regularly ask for. For customers happy to manage their plan through a browser, Mozillion delivers strong value on the UK's best network.
Phone contracts are available with new and refurbished handsets from Apple, Samsung, and Google. Examples include refurbished Samsung Galaxy A55 from around twenty-two pounds per month and new iPhone 17 models. Refurbished devices come with a 90-point check, backed by a free 12-month warranty on every phone.
SIM-only plans on a 24-month contract run 3GB at four pounds, 10GB at six, 30GB at eight, 80GB at ten, 100GB at twelve and unlimited at twenty-four pounds, with 30-day rolling and 12-month terms also available at higher monthly prices. Data-only and mobile broadband SIMs are offered too.
3 plans matching Unlimited
Direct from Mozillion, ranked by monthly cost.
