Honest Mobile UK: Plans, Prices, and What You Need to Know

Last updated: March 2026

What is Honest Mobile?

Honest Mobile is a UK-based mobile virtual network operator (MVNO) founded in 2018 by Andy Aitken and Josh Mihill. It piggybacks on Three's network, giving customers access to 99.8% UK population coverage and 5G speeds on all plans.

What sets it apart from the likes of Smarty, iD Mobile, or Lebara is its focus on sustainability and fairness. Honest Mobile is carbon negative, a certified B Corporation, and a member of 1% for the Planet. It also pledges never to raise your bill mid-contract. In fact, it does the opposite.

The Loyalty Discount: A Bill That Goes Down

This is Honest Mobile's headline feature. Your bill drops by 0.41% every month you stay with them, stacking up to a maximum 30% discount over time. That means the unlimited plan, which starts at £25/month, could fall to as low as £17.50/month if you stick around long enough.

In a market where the big networks routinely hike prices mid-contract (often pegged to inflation plus a percentage), this approach is genuinely refreshing. Ofcom has published guidance on mid-contract price rises, and Honest Mobile sidesteps the issue entirely by simply not doing them.

Honest Mobile Plans and Prices (2026)

Honest Mobile keeps things simple with three SIM-only plans, all available on either a 30-day rolling or 12-month basis. Every plan includes unlimited UK calls and texts, 5G, Wi-Fi calling, and unrestricted hotspot use.

Classic SIM Plans (30-day)

Plan	Monthly price	With max loyalty discount
4 GB	£12.15	£9.45
10 GB	£17.50	£12.25
Unlimited	£25.00	£17.50

Twelve-month plans offer an additional saving on top of the loyalty discount. You can switch between data tiers at any time via the app, and Honest Mobile will even notify you if a cheaper plan would suit your usage better.

The unlimited plan is comfortably competitive at £25/month, matching or undercutting rivals like VOXI and Lebara. The 4 GB and 10 GB tiers are slightly pricier than the cheapest MVNOs, but you are paying for the sustainability credentials and the loyalty discount that cheaper networks do not offer.

Fair usage note

The unlimited plan has a 750 GB fair usage policy. After that, speeds are limited to 3G. For the vast majority of users, this will never be an issue.

Smart SIM: The Backup eSIM

Honest Mobile also offers something fairly unusual in the UK market: the Smart SIM. This is a secondary eSIM designed to sit alongside your main SIM card (from Honest or any other network) and provide backup connectivity.

The Smart SIM connects to EE, O2, and Three, meaning if your main network drops signal, your phone can automatically fall back to one of the other networks. It also includes free roaming in over 180 countries.

The catch? It is data-only (no calls or texts) and works with a curated list of 500+ supported apps rather than full unrestricted data. These include essentials like WhatsApp, Google Maps, Uber, banking apps, and navigation tools. It is not designed for streaming or browsing; it is designed to keep you connected when it matters.

Smart SIM Pricing

• Monthly: £10/month
• Annual: £45/year (works out at £3.75/month)

The annual plan is an excellent deal if you travel regularly or live in an area with patchy coverage on your primary network.

EU Roaming and Going Abroad

All Classic SIM plans include five free EU roaming days per trip. You can use your UK allowance (up to 20 GB/month for data) across 44 EU and EEA destinations at no extra cost. From day six onwards, roaming charges apply at £2 per day. That is more restrictive than some networks, but more generous than those that charge from day one.

For non-EU travel, the Smart SIM is where Honest Mobile really stands out, offering free roaming across 180+ countries on supported apps.

Network Coverage and Speeds

Honest Mobile runs on Three's infrastructure, which covers 99.8% of the UK population. Since Three and Vodafone merged operations (forming VodafoneThree), coverage is expected to improve further over time, particularly in rural areas where Three has historically been weaker.

5G is included on every plan as standard. You will need a 5G-compatible handset and 5G coverage in your area. You can check Three's coverage map to see what is available at your postcode.

Customer Service

Honest Mobile has built a strong reputation for customer support. The company claims an average response time of around 35 seconds, and it is backed up by a Trustpilot rating of 4.7 out of 5 ("Excellent") from over 3,000 reviews. Support is available via the app's live chat, handled by real people rather than bots.

The Dragons' Den Story

Honest Mobile appeared on BBC One's Dragons' Den in October 2025 and secured investment from both Deborah Meaden and Steven Bartlett. The pair invested a combined £165,000 for a 4.5% stake. Meaden, known for her focus on sustainability, praised the company's environmental credentials, while Bartlett saw potential for rapid customer growth.

The appearance had an immediate impact. The company reportedly saw website traffic jump from around 22 visitors to 100,000 on the night the episode aired, and it has since grown to over 43,000 customers.

How to Switch to Honest Mobile

Switching is straightforward. You can order either a physical SIM or an eSIM directly from Honest Mobile's website. If you want to keep your current number, text PAC to 65075 to get your porting code from your existing provider, then enter it during sign-up.

eSIMs are delivered instantly by email. Physical SIMs are posted on 100% recycled plastic cards with carbon-negative shipping.

If you sign up through our Honest Mobile referral code, you will also receive £5 credit on your account once your SIM is activated.

View Honest Mobile plans

Is Honest Mobile Worth It?

If you want unlimited data at a competitive price and care about supporting an ethical, environmentally conscious business, Honest Mobile is one of the best options in the UK market. The loyalty discount is a genuine differentiator, and the customer service is consistently excellent.

The lower-data plans are not the cheapest available, so if you are on a tight budget and only need a few gigabytes, cheaper MVNOs like Smarty or iD Mobile may save you more in the short term. But for anyone who values transparency, sustainability, and a bill that actually decreases over time, Honest Mobile is well worth considering.

Ready to join? Grab £5 off via our Honest Mobile referral code page.

Frequently Asked Questions

What network does Honest Mobile use?

Honest Mobile uses Three's network (now part of VodafoneThree), which covers 99.8% of the UK population. 5G is included on all plans at no extra cost.

Can I keep my phone number if I switch to Honest Mobile?

Yes. Text PAC to 65075 to get your porting code from your current provider, then enter it when you sign up with Honest Mobile. They will handle the rest.

Does Honest Mobile offer eSIMs?

Yes. Both the Classic SIM and Smart SIM are available as eSIMs, delivered instantly by email. You can check whether your phone supports eSIM on Honest Mobile's compatibility page.

Is Honest Mobile cheaper than Three?

For unlimited data, Honest Mobile's pricing is competitive with Three and often cheaper once the loyalty discount kicks in. However, for lower-data plans (4 GB or 10 GB), some rival MVNOs on Three's network, such as Smarty, may offer better value.

What is the Honest Mobile Smart SIM?

The Smart SIM is a backup eSIM that connects to EE, O2, and Three simultaneously. It works alongside your main SIM and provides data for 500+ supported apps, plus free roaming in 180+ countries. It costs £10/month or £45/year.

Does Honest Mobile work abroad?

Classic SIM plans include five free EU roaming days per trip (up to 20 GB/month). The Smart SIM offers free roaming in over 180 countries for supported apps.

Who invested in Honest Mobile on Dragons' Den?

Deborah Meaden and Steven Bartlett invested a combined £165,000 for a 4.5% stake during the episode that aired in October 2025.

Is there an Honest Mobile referral code?

Yes. You can get £5 credit when you sign up through a referral link. See our Honest Mobile referral code page for details.

Information on this page is accurate at the time of writing but may change. Check honestmobile.com for the latest plans and pricing.

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