breeze eSIM Review: Plans, Networks and the Small Print

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Breeze is the consumer face of eSIM Go Limited, a Banbury telecoms company registered at Companies House as number 12465777, incorporated on 17 February 2020 and filed under SIC code 61200 for wireless telecommunications. It sells travel data eSIMs — a network profile your phone downloads instead of a plastic SIM — across 190+ countries, and says it reaches those countries through more than 1,200 networks. Fixed plans run from 1GB to 100GB, prices start at $3.99, the site promises a line that is live in under 60 seconds, and tethering is included on every plan rather than sold as an extra.

The name is less familiar than the business behind it. eSIM Go builds the platform that other travel brands put their own badge on, so the same engine sells the Wizz Air, SWISS, Lufthansa and Booking.com eSIMs, and the one Bristol Airport offers its passengers. Buying at breezesim.com is buying from the wholesaler rather than from a reseller with a licence to the same inventory. In May 2026 the company took an investment round led by TNS Global, a Eurasian wholesale telecoms group, to push further into travel data and UK mobile virtual network work.

Two things decide whether this product suits you before you spend anything. Breeze plans carry data only: no voice calls, no text messages and no phone number of their own, so your usual SIM has to stay switched on for anything that rings or texts, including bank verification codes. And the technology has an age limit — Breeze's own help centre states that "devices manufactured prior to 2018 will not be eSIM compatible", and the handset must be unlocked.

The Banbury company behind the badge

Two registrations matter here. eSIM Go Limited is the older of the two, incorporated on 17 February 2020 and now filing accounts to 31 March each year, with its last set made up to 31 March 2025 and the next due by 31 December 2026. Breezesim Limited, company 16221665, was incorporated on 31 January 2025 with £4,000 of share capital and moved into the same First Floor office on 11 May 2026. Its filing history shows two charges registered, on 5 January 2026 and 7 April 2026, and a person with significant control — ESG Holdco Ltd — notified on 30 April 2026. The same director, Zacchary Couldrick, sits behind both the retail company and the platform that supplies it.

That structure explains the white labels. eSIM Go's business is selling connectivity to other brands, and its own May 2026 announcement names customers including Loopdl, SecondSIM, Faith Mobile and Symu, alongside a UK mobile virtual network arrangement with VodafoneThree. A traveller who has bought an airline-branded eSIM in the last two years may already have been a Breeze customer without knowing it: the terms document Wizz Air publishes for its own eSIM is headed "Breeze Terms and Conditions" and names eSIM Go Limited as the supplier.

How the plans are shaped, and when the clock starts

Breeze sells three shapes of plan. Fixed plans give a set number of gigabytes to use over a chosen number of days, from 1GB up to 100GB. Premium Unlimited plans are sold as 30GB over 5 days, 60GB over 10 days or 90GB over 15 days — unlimited in the sense that the line keeps working, because past the allowance the site says "your data speed will be reduced (but is still suitable for streaming 720p video)". Day plans give 1GB of full-speed data per 24 hours. Top-ups can be added mid-trip from your account, and the site states that it will "never let you go over your agreed data allowance", which removes the overage charge that made old-fashioned roaming frightening.

The timing detail is the one worth knowing before you fly. Breeze states plainly that "your plan validity starts on first use in [the destination] — not at purchase", so a 30-day plan bought a fortnight early still gives 30 days from the moment the phone first connects abroad. That is why the instruction to install before departure, while you still have reliable Wi-Fi, costs nothing: installing is not activating. Buying more than one plan attracts a stated 10% discount on two or more.

Prices seen on 6 September 2026: 10GB over 30 days in the United States at $13.99, reduced from a listed $19.00; the same size plan for Canada at $14.99; a Europe Lite 10GB plan at $12.99; and a North America regional plan at $13.99 against a struck-through $33.50.

Which networks your handset actually joins

Most travel eSIM sellers will not tell you whose masts you end up on. Breeze does, on each destination page, and that is unusually straightforward. In the United Kingdom the plan is carried by Telefonica UK Limited, Hutchison 3G UK Limited and Vodafone Ltd — the O2, Three and Vodafone networks, with the handset able to fall back between them rather than being stuck on one. In the United States the partners named are Verizon Wireless and AT&T Mobility, which between them are the two largest US carriers by subscriber base.

Technically the plans run on 3G, 4G LTE and 5G where the host network offers it, and the wording is careful: 5G is offered "where available" rather than promised. That caveat is doing real work, because a roaming profile is generally given whatever the local operator grants visiting customers, which is not always the same as what its own subscribers get. If a specific speed matters — uploading video, tethering a laptop for work — that is worth a question to support before you buy rather than an assumption afterwards.

The regional maths deserves a squint too. The Europe plan is described in one place as covering 34 countries and in another, on the same page, as "35 Countries and Networks", so check the specific country list for the trip you are actually taking rather than trusting the headline count.

Travel data sits outside the rules that protect you at home

Ofcom has spent several years tightening what a UK mobile provider must do when you cross a border, and it is worth knowing which of those protections travel with you and which do not. The statement Mobile roaming – Strengthening customer protections, published 22 March 2024 and in force from 1 October 2024, modified General Condition C3 so that providers must alert customers "without undue delay" on arrival, free of charge, explaining the charges and any fair use limits, and must point them to a free and easily accessible way of setting a bill limit. The same statement obliged providers to help customers avoid inadvertent roaming near borders, an issue Ofcom found affected 14% of customers nationally and 28% in Northern Ireland.

The research behind it is the useful part. Ofcom found 94% of people who had roamed were aware of the alerts, 84% said they read them and 72% changed their behaviour as a result, while 19% did not know whether charges applied in the EEA and 30% did not know for the rest of the world. Just 49% of pay-monthly customers had a bill limit set.

What no longer exists is the hard stop. The £45 plus VAT per day data cap that once halted a roaming session unless the customer agreed to carry on expired on 30 June 2022, as the House of Commons Library briefing on post-Brexit roaming records. Ofcom's own consumer guidance now suggests, in as many words, considering "a SIM card for the country you are visiting or an 'e-SIM'" as a way of controlling the cost — the regulator recommending the product category, which is a rare thing to be able to say on a comparison page. A prepaid data plan cannot generate a surprise bill because there is nothing to bill: you have already paid.

The clauses that decide whether you get your money back

The terms published under the Breeze name are more generous than the digital-goods norm in one place and stricter in others. You may cancel and be refunded "providing you do so within fourteen (14) days of purchase and have not Activated your Plan", and the sales pages put it more simply still: if no data has been used, the refund is available. Many sellers of digital content switch that right off the moment the file is delivered, so keeping it until first use is a real concession.

Against that sit three limits. An eSIM must be activated within twelve (12) months of purchase or it expires with no refund, and a profile left unused for twelve months may be cancelled outright, requiring a fresh one. The fair use policy restricts the service to "your own personal use during short-term travel" with a maximum of sixty (60) consecutive days in any one country, which rules out using a cheap foreign plan as a permanent home connection. And unused data does not roll anywhere: if the plan's days run out before the gigabytes do, the balance is forfeited.

Liability is capped at £1,000 for one incident or £3,000 for a number of incidents within any twelve (12) month period, with loss of income and profits excluded. English law governs the agreement. For a £12 data plan those caps are academic; for a business traveller whose week depends on the connection working, they are the ceiling on any argument.

One plan, three shops, three currencies

Because the same platform runs the airline and hotel storefronts, the identical plan can be bought in several places at prices that are not the same. On 6 September 2026 a 10GB, 30-day United States plan was listed at $13.99 on breezesim.com, at £12.00 (reduced from £16.00) on the Booking.com-branded Breeze store, and at €14.95 on the SWISS one. The Booking.com store also showed Turkey at £11.00, Italy at £12.00 against a struck-through £18.00, Spain at £10.00 from £12.00 and Greece at £10.00, with day rates quoted from £0.20 for the USA and £0.27 for Europe.

Nothing on any of those pages explains the gap, and a British buyer has a second question on top of it: the main Breeze site quotes in dollars, so the sterling amount that reaches your statement depends on the exchange rate on the day and on whether your card adds a non-sterling transaction fee. Check the currency shown at the checkout, not on the product tile. The partner stores are also geographically restricted — fetched from outside the UK, the Booking.com storefront returned "Sorry, [[store]] isn't available within the borders of [[country]] at this time", with the placeholders left unfilled, which is a small piece of housekeeping somebody should tidy.

The country counts wander in the same way. Breeze's own pages say 190+ countries and 1,000+ mobile network partnerships; eSIM Go's May 2026 announcement says more than 1,200 networks; and Bristol Airport, promoting the same product, tells passengers it covers 150+ countries. All three may be true of different things — countries with a plan, networks under contract, destinations the airport chose to list — but nothing published reconciles them.

Paperwork that has fallen behind the rules

Breeze's published complaints policy gives a phone number (+44 330 320 2064), an email address and a postal route, aims to resolve complaints within 10 working days, and offers escalation to a Complaint Escalations Team. It then tells the customer they may take the matter to an independent adjudicator once more than eight weeks have passed since first contact, or on receipt of a deadlock letter.

Eight weeks is no longer the rule. Ofcom announced on 8 July 2025 that the wait for alternative dispute resolution would fall from eight weeks to six, and the change took effect on 8 April 2026. The regulator's reasoning is worth quoting because it is exactly the situation a stranded traveller is in: between January 2022 and 2024, 79% of complaints were resolved within a week and 94% within six weeks, but roughly 700,000 consumers were still waiting at the six-week mark and only about 19% of them got a resolution or an ADR referral before the eight-week threshold. A customer who reads Breeze's page and waits the full eight weeks gives away two weeks of a right they already hold.

The two Breeze documents also point at different adjudicators. The complaints policy names Ombudsman Services – Communications at Daresbury Park in Warrington — a body that now trades as the Communications Ombudsman — while the terms and conditions document hosted by its airline partner points customers to the Communications and Internet Services Adjudication Scheme instead. Both are Ofcom-approved schemes, and being in one of them is more than many travel eSIM sellers offer, but a customer should not have to guess which one their complaint belongs to. That airline-hosted document is dated March 2023 and still carries an old registered address at 8 North Bar Street, OX16 0TB, three streets from the address the company uses now.

Nobody independent rates a travel eSIM

On an insurance page this is where a Defaqto star rating or a Fairer Finance ribbon would go. No such thing exists for travel data. Defaqto and Which? do not score eSIM sellers, the Financial Ombudsman Service has no jurisdiction because nothing here is a financial product, and Ofcom's quarterly telecoms complaints tables cover the large domestic providers rather than a specialist selling foreign data.

That is an absence rather than a black mark, and it is worth naming precisely, because the gap is filled on most eSIM comparison pages by review-collection sites where the merchant chooses when to ask. The verifiable things about Breeze are the ones in this page: a real UK company with filed accounts, a named registered office, named host networks, a published complaints route into an Ofcom-approved scheme, and terms you can read before paying. For a product bought once a year for a fortnight abroad, that list is a more useful test than a score.

Figures were taken from each provider's own published terms on 6 September 2026. Variable rates can change at any time — confirm the current rate with the provider before applying.