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Honest Mobile Review
B Corp certified MVNO on Three with loyalty discounts that reduce your bill each year, plus a unique Smart SIM connecting to all four UK networks.
Pros & Cons
Pros
- Bills actually decrease over time with the loyalty scheme, up to 30% off after several years
- Excellent customer service rated 4.7 on Trustpilot with fast human response via WhatsApp and chat
- 5G, WiFi Calling, and eSIM included as standard on all plans
- B Corp certified and carbon-negative with genuine environmental credentials
- Unique Smart SIM connects to EE, O2, Three, and Vodafone simultaneously for backup coverage
- Three's network delivers a 226.3 Mbps median download speed (Ookla Q3-Q4 2023), well ahead of EE, Vodafone, and O2
Cons
- Not the cheapest, with comparable unlimited plans available elsewhere for significantly less
- No handset contracts and no pay-as-you-go option
- Relies on Three's coverage which can be weaker in rural areas compared to EE
- Smart SIM cannot make voice calls and is restricted to approximately 500 supported apps
Honest Mobile Overview
Honest Mobile is a UK mobile virtual network operator launched in 2019 by founders Josh and Andy, running on Three's network. It became the UK's first B Corp certified mobile network, reflecting its commitment to ethical business practices and environmental responsibility. The company has grown to over 80,000 customers and secured investment from Deborah Meaden and Steven Bartlett on Dragons' Den.
What makes Honest Mobile genuinely different is its loyalty discount scheme. Rather than raising prices annually like most networks, Honest Mobile actively reduces your bill by 5% each year, up to a maximum 30% discount. This means long-term customers are rewarded rather than penalised, a stark contrast to the industry norm of CPI-linked annual price increases.
Honest Mobile also offers a unique Smart SIM product, a backup eSIM that connects simultaneously to EE, O2, Three, and Vodafone networks for over 500 supported apps, providing multi-network coverage and free roaming in 180+ countries. Combined with strong customer service ratings, a no-price-rise guarantee, and Three's UK-leading download speeds, Honest Mobile has carved out a distinctive position among UK MVNOs.
Coverage & Speed
Honest Mobile provides coverage through Three's network, reaching approximately 99.8% of the UK population on 4G. Three is now part of the merged VodafoneThree group, with coverage progressively expanding through shared infrastructure. Three also leads the UK on median download speeds at 226.3 Mbps per Ookla's Q3-Q4 2023 Speed Test Awards. The optional Smart SIM product adds simultaneous EE, O2, and Vodafone coverage for data, significantly improving reliability in areas where Three's signal is weak.
Plans & Pricing
Honest Mobile offers SIM-only plans on 30-day rolling or 12-month contracts. Classic SIM data tiers are 4GB, 10GB, and unlimited, with unlimited UK calls and texts, 5G, WiFi Calling, and EU roaming included. A separate Data Plans range offers data-only SIMs from 2GB to unlimited for tablets, secondary devices, or no-credit-check customers. A loyalty discount reduces your bill by 5% each year on all plans. Family Plans bundle three to ten SIMs on a single bill with a 20% loyalty boost on 30-day plans or a flat 30% off on 12-month plans.
Roaming
Honest Mobile includes EU roaming across 44 destinations on all plans. Customers receive 5 free roaming days per trip using their UK allowance with up to 20GB data. From day 6 onwards, a two pounds per day charge applies. Tethering and hotspot use is unrestricted on all plans.
Our Verdict
Honest Mobile has built a genuinely distinctive position in the UK mobile market through its loyalty discount scheme, B Corp certification, and innovative Smart SIM product. The combination of bills that actually decrease over time and a 4.7 Trustpilot rating from 80,000-plus customers indicates a company that delivers on its promises. Backing from Deborah Meaden and Steven Bartlett on Dragons' Den adds further credibility.
The main trade-off is value for money on day one. Honest Mobile is not the cheapest MVNO on Three, and budget-focused shoppers can find comparable unlimited plans for significantly less elsewhere. The loyalty discount only becomes meaningful after several years of service. Three's coverage, while improving through the Vodafone merger, still has rural weak spots compared to EE.
For customers who plan to stay with a network long-term and value ethical credentials, responsive customer service, and price stability, Honest Mobile is one of the most compelling choices in the UK market. The Smart SIM adds genuine innovation that no other UK provider currently matches, and Family Plans offer compelling multi-SIM savings for households.
Quick Specs
Honest Mobile does not sell phone contracts with handsets. Customers who want a new device must purchase one separately.
SIM-only plans start at approximately twelve pounds per month for 4GB on a rolling contract, with 10GB at around sixteen pounds and unlimited at approximately twenty-three pounds. Twelve-month contracts offer lower rates. Family Plans of three or more SIMs save 20% on 30-day plans or 30% on 12-month plans, with up to ten SIMs on a single bill.
3 plans matching 12-month
Best Honest Mobile SIM-Only Plans
Direct from Honest Mobile, ranked by monthly cost.