Asda Mobile vs Honest Mobile: Coverage, Price and Which To Choose

Asda Mobile and Honest Mobile sit at genuinely different points in the UK SIM-only market — one is a supermarket-backed budget brand, the other an ethically-positioned challenger — and following a major industry merger, they're now more closely connected than their branding suggests.

The network connection most comparisons miss

Asda Mobile runs on Vodafone's network. Honest Mobile runs on Three's network. Historically, this made them properly distinct in terms of underlying infrastructure. But Vodafone and Three completed a merger in May 2025, forming a combined operator called VodafoneThree — now the UK's largest mobile network by customer base. This means Asda Mobile and Honest Mobile are technically both riding on parts of the same combined network today, even though they were built on what were separate infrastructures when each network launched.

Full technical integration between the former Vodafone and Three networks is a multi-year process rather than something that happened instantly at merger completion, so in practice you may still notice some differences in coverage and performance between the two for the time being — but the gap is likely to narrow over the coming years as the physical networks combine more fully.

Real current pricing — Asda Mobile

Following an April 2026 plan refresh, Asda Mobile's current tiered pricing (available on both 12 and 24-month terms at the same price) is:

• 10GB — £5.95/month
• 50GB — £7.95/month
• 80GB — £9.50/month
• 100GB — £12/month

All plans include unlimited UK calls and texts, 5G access at no extra charge, data rollover for unused allowance, Wi-Fi calling, and free EU roaming.

Real current pricing — Honest Mobile

Honest Mobile keeps its range deliberately simple, with three Classic SIM data tiers:

• 4GB — around £10/month
• 10GB — around £15-18/month
• Unlimited — £25/month (the most popular choice, selected by roughly 60% of Honest Mobile customers)

Every Honest Mobile plan includes 5G as standard, unlimited UK calls and texts, and 5 free days of EU roaming per trip.

The loyalty discount — Honest Mobile's real differentiator

Rather than raising prices annually like most networks, Honest Mobile automatically reduces your bill by roughly 0.41% every month you stay, up to a maximum 30% discount over time. This means the £25/month Unlimited plan can gradually fall to around £17.50/month for long-term customers — a genuinely unusual pricing model in an industry where annual price rises are the norm. Asda Mobile doesn't offer an equivalent loyalty discount structure; its pricing stays fixed for the length of your chosen contract term.

Coverage comparison

Asda Mobile claims 99% UK population coverage via Vodafone's infrastructure. Honest Mobile claims similarly strong coverage — around 99.8% — via Three's network. Both figures are in the same broad range, and with the VodafoneThree merger gradually combining spectrum and reducing coverage gaps for both underlying networks, the practical difference between them is likely to matter less over time than it would have a few years ago. Check both networks' coverage for your specific postcode rather than assuming based on brand alone.

Customer service — a genuine, measurable difference

This is one of the clearest differentiators between the two. Honest Mobile holds a Trustpilot score of 4.6 out of 5 from around 4,000 reviews, with customer service specifically and repeatedly praised — reviewers often name individual support agents. Asda Mobile holds a lower but still solid 3.8 out of 5 from over 16,000 reviews, with affordability rather than service quality being the most commonly praised aspect. If account support quality matters as much to you as price, this gap is worth factoring in.

Worth noting: Honest Mobile doesn't offer a phone support line, running support through app, live chat, and email instead, with claimed response times measured in seconds. If you specifically prefer speaking to someone on the phone, this is a real limitation regardless of how well-reviewed the chat-based support is.

Honest Mobile's Smart SIM — a genuinely different product

Beyond its standard Classic SIM plans, Honest Mobile offers a separate product called Smart SIM, priced at £10/month or £45/year. This is a data-only backup SIM that can connect to multiple UK networks rather than just Three, plus roaming in 180+ countries. It's specifically designed as a secondary SIM to cover you when your main signal drops, not as a replacement for a primary calls-and-texts SIM. Asda Mobile has no equivalent product in its lineup.

Values and positioning

Honest Mobile is the UK's first B Corp-certified mobile network, carbon negative, and a member of 1% for the Planet, donating a percentage of revenue to environmental causes. This ethical positioning is central to its brand identity and appeals specifically to customers who want their spending to reflect broader values, not just the lowest price. Asda Mobile makes no equivalent sustainability claims and is positioned purely around affordability and simplicity, backed by the recognition of the Asda supermarket brand.

eSIM support

eSIM availability has been inconsistent across sources for Asda Mobile — some report it's been added to select plan types recently, others report no eSIM support at all — so it's worth checking directly with Asda Mobile for your specific plan before assuming either way. Honest Mobile's Smart SIM specifically operates as an eSIM, and its Classic SIM range supports eSIM activation as standard, reflecting its more tech-forward positioning generally.

Contract flexibility

Asda Mobile's current headline pricing is tied to 12 or 24-month minimum terms, though the network has historically also offered rolling 30-day options — check current availability directly since plan structures have shifted with the April 2026 refresh. Honest Mobile's Classic SIM plans allow you to switch to a cheaper plan after 30 days if your usage changes, offering more flexibility within an ongoing relationship even if you're not on a strict rolling monthly contract throughout.

A worked example: choosing based on real usage

Say you use around 50GB a month and don't have strong feelings about which company you support ethically. Asda Mobile's 50GB tier at £7.95/month is difficult for Honest Mobile to match directly, since Honest Mobile doesn't offer a 50GB-specific tier — you'd need to either accept the 10GB tier's limitations or step up to Unlimited at £25/month (before any loyalty discount applies). In this scenario, Asda Mobile is the clear value winner.

Now say you use minimal data — under 5GB a month — but you specifically want to support a carbon-negative, B Corp-certified company and you value having chat-based support that's consistently well reviewed. Honest Mobile's 4GB tier at around £10/month costs more than Asda Mobile would for equivalent usage, but the ethical positioning and service quality may be worth the premium if those factors genuinely matter to your decision, not just the headline number.

Data-only and family options

Neither Asda Mobile nor Honest Mobile currently offers a dedicated family or multi-SIM discount structure in the way some other MVNOs do — both are built around individual SIM-only plans rather than household bundles. If you need multiple lines with any kind of shared discount, it's worth checking elsewhere in the market rather than assuming either of these two providers accommodates that need.

Honest Mobile's Smart SIM is the closest either network comes to a secondary-line product, but as covered above, it's data-only and designed as backup connectivity rather than a genuine second line for another family member.

What customers actually complain about

Beyond the headline Trustpilot scores, it's worth understanding what each network's criticism tends to focus on. Honest Mobile's most common criticism is around its limited plan choice — with only three core data tiers, customers needing something between 10GB and Unlimited have no middle option, and its lower-data plans are considered comparatively expensive against other MVNOs offering similar allowances for less. Asda Mobile's criticism tends to centre on the absence of standout features — reviewers describe it as reliable but unremarkable, without complaints about the core service itself, more a sense that it doesn't do anything beyond keep the price low.

Network speed in practice

Reported average speeds differ between the two, reflecting differences in the underlying Vodafone and Three infrastructure they're built on — one review cites Honest Mobile's average speeds around 226Mbps, reflecting Three's historically strong 5G speed performance in independent testing. Asda Mobile's speeds, tied to Vodafone's infrastructure, have generally tested solidly but not class-leading in recent Opensignal reporting. If raw speed matters more to you than price or ethics, it's worth checking recent independent speed test data for your specific area, since national averages don't always reflect local performance.

Roaming abroad compared

Both networks include some free EU roaming as standard — Asda Mobile bundles this into its plans generally, while Honest Mobile specifically offers 5 free roaming days per trip across the EU on every Classic SIM plan. If you travel frequently and for longer than 5 days at a time, it's worth checking exactly how each network's roaming allowance is structured, since a per-trip day limit works differently to an unlimited-for-the-duration approach some other networks use.

Credit checks and eligibility

Asda Mobile explicitly advertises no credit checks required for its SIM-only plans, making it accessible to customers who might not qualify for a traditional contract elsewhere. This is a genuine practical advantage for anyone with a limited or poor credit history. Honest Mobile's eligibility requirements aren't as prominently marketed, so it's worth confirming directly if credit history is a concern for you specifically.

Matching the choice to your actual priority

If your decision comes down purely to monthly cost at a specific data tier, Asda Mobile is difficult to beat, particularly at the 50GB and 80GB tiers where it undercuts Honest Mobile's Unlimited-or-nothing structure above 10GB significantly. If your decision factors in customer service quality, ethical business practices, or a pricing model that rewards loyalty over time rather than penalising it, Honest Mobile's proposition is genuinely different from most of the UK MVNO market, not just a marketing angle layered on top of the same underlying value proposition as everyone else.

Which one should you choose?

Choose Asda Mobile if: price is your primary concern, especially at higher data tiers, and you're comfortable with a 12 or 24-month commitment.

Choose Honest Mobile if: customer service quality and ethical business practices genuinely matter to you, you want a bill that decreases over time rather than increases, or you specifically want the Smart SIM multi-network backup option.

Switching between the two

If you're moving from one to the other, our guide to switching SIM providers covers the process, and our guide to cancelling Honest Mobile specifically walks through the exact PAC/STAC code process if you're leaving Honest Mobile for Asda or another provider.

Comparing against the wider SIM-only market

Asda Mobile and Honest Mobile are just two options among many UK MVNOs. Browse our full current SIM-only comparison here to see live pricing across the wider market, or compare unlimited data plans specifically if that's your priority regardless of provider.

Upgrading your phone at the same time

If you're switching networks and also considering a new phone, compare refurbished phones here rather than paying full price, or get a live trade-in price for your current phone if you're planning to sell it once you upgrade.

The bottom line

Asda Mobile wins clearly on headline price, particularly at higher data tiers. Honest Mobile wins clearly on customer service reputation, ethical positioning, and its unusual bill-reducing loyalty model — genuinely rare in an industry built around annual price rises. Both now technically sit within the same merged VodafoneThree network, so the coverage gap between them matters less than it once did; the real decision comes down to whether you prioritise the lowest possible price or a service built around long-term customer loyalty and support quality.