Updated September 30, 2026 · TariffCue Editorial Team
ESIMZON vs USIMS
What sets them apart
| Compare |  ESIMZON |  USIMS |
|---|---|---|
| Seller type | Reseller | Mvno |
| Price from | $1Lower | $2 |
| Reference plan prices | UK data eSIM 1GB 30 Days: $2 per plan, 1GB, prepaid no contract; UK unlimited eSIM 1 Day: $4.28 per plan, unlimited, prepaid no contract; UK unlimited eSIM 30 Days: $55.99 per plan, unlimited, prepaid no contract (no 12-month or 30GB+ monthly plans listed) | No 12-month, unlimited or monthly plans; cheapest 10-day packages listed: France 10 GB: 9 USD, 10 GB, 10-day validity; United Kingdom 10 GB: 9 USD, 10 GB, 10-day validity; United States 10 GB: 15 USD, 10 GB, 10-day validity |
| Roaming countries | 130Higher | 120 |
| Host network | Partner networks incl. AT&T, O2, Orange, Rogers, TIM, T-Mobile, Verizon, Vodafone | Not confirmed |
| Unlimited plan price | $2.90 | Not confirmed |
| 5G | Yes | Not confirmed |
| Mid-contract price rises | Not confirmed | Charges may be changed at any time without notice, with changes posted on the mobile app and website |
Same on both: SIM-only (Yes), eSIM (Yes).
We earn a commission when you sign up through links on this site. Partner status can affect where a brand appears in our rankings.
Key differences
- ESIMZON scores higher overall: 9.4 vs 9.0.
- Price from is lower at ESIMZON: $1 vs $2.
- Roaming countries is higher at ESIMZON: 130 vs 120.
Our verdict on each
ESIMZON
ESIMZON suits travellers who want prepaid eSIM data on partner networks with nothing owed after the trip, and its strength sits at the unlimited end of the range. Unlimited plans start at $2.90, while support runs on email, chat and help centre rather than by phone.
USIMS
USIMS suits travellers who want prepaid data while away, with entry at $2 and roaming across 120 countries. The catch is what that entry buys: the published list holds no monthly, contract or unlimited tier, so a trip means buying a fresh package rather than renewing a set plan.
Score breakdown
| Area | ESIMZON | USIMS |
|---|---|---|
| Cost | 9.9HigherEntry from $1 and unlimited from $2.90, ranking 1 of 7 on unlimited price. | 9.3Entry is $2 with prepaid billing, and the plan list is built from short validity data packages. |
| Offer | 8.9HigherSim only and eSIM throughout, coverage of 130 countries, but a reseller model and email, chat and help centre support. | 8.8Sim only and eSIM are both offered, and support runs on email, chat and help centre for setup and help. |
Where each is licensed and available
| Country | ESIMZON | USIMS |
|---|---|---|
| Headquarters | India | Switzerland |
By the numbers
| Fact | ESIMZON | USIMS |
|---|---|---|
| Price from | $1 | $2 |
| Roaming countries | 130 | 120 |
Also worth a look
co:sim has price from at $0.99, against $1 for ESIMZON and $2 for USIMS.
co:sim reviewHow they place
| Ranking | ESIMZON | USIMS |
|---|---|---|
| Phone plans with eSIM | 4 of 389 | 9 of 389 |
Every fact side by side
| Fact | ESIMZON | USIMS |
|---|---|---|
| Billing | Prepaid | Prepaid |
| Legal entity | Not confirmed | WONE SAGL |
| Headquarters | India | Switzerland |
| Support channels | Email, Chat, Help centre | Email, Chat, Help centre |
Where each stands against the rest
| Fact | ESIMZON | USIMS | Median |
|---|---|---|---|
| Price from | $1lowest quarter | $2below the median | $5 |
| Unlimited plan price | $2.90lowest quarter | Not confirmed | $25 |
| Roaming countries | 130above the median | 120above the median | 100 |
Median across 176 listed providers.
Pros and cons
ESIMZON
Pros
- Unlimited plans start at $2.90, the strongest figure in that column of our data.
- Entry plans start at $1, and the UK range is prepaid with no contract, so a plan can end with the trip.
- Coverage spans 130 countries, so one plan covers a multi-country trip.
Cons
- It works as a reseller, so the host network behind a plan is picked for you rather than chosen.
- Support runs on email, chat and help centre, with no phone line for problems that matter while a trip is already under way.
- Billing is prepaid, so the range holds no long monthly plan for anyone who wants one steady recurring bill.
USIMS
Pros
- Roaming covers 120 countries, so a package list can carry a trip across several borders without swapping providers.
- Sim only is available and eSIM is supported, so a new phone can be online without waiting for a card in the post.
- Billing is prepaid, so there is no contract term to serve and nothing to close when a trip ends.
Cons
- A monthly or unlimited plan is not among its reference plan prices, which are prepaid data packages by country, and prepaid billing means each top-up is a fresh purchase rather than a renewal.
- USIMS can revise charges and publish them in its app and on its site, so the entry price of $2 is not a figure you can plan a later top-up around.
- Support runs on email, chat and help centre only, with no phone line listed for problems that cannot wait.
Who each suits
ESIMZON
Who it suits
- Travellers who install an eSIM before departure and want a plan that ends with the trip: entry plans start at $1 with no contract.
- People crossing several borders on one plan, since coverage spans 130 countries across partner networks.
- Readers who already own a handset and want data only, because the range is sim only and esim.
Who should look elsewhere
- Readers who want an MVNO rather than a reseller, such as co-sim, since ESIMZON works as a reseller.
- KnowRoaming, which lists entry at $1.75, if you would rather weigh a different price list, or BambooSIM, an mvno, if that model matters more to you.
- Anyone who needs a phone line, because support runs on email, chat and help centre and reaches you in writing only.
USIMS
Who it suits
- People crossing several borders and paying for data a package at a time rather than through a monthly bill.
- Owners of a new phone who want data running straight away through an eSIM.
- Buyers who treat the number as a travel tool and top up again when a package runs out instead of tracking a renewal date.
Who should look elsewhere
- Shop-first buyers: ESIMZON and KnowRoaming are resellers, where USIMS is an mvno.
- Anyone after unlimited data: the site median of €12.27 for unlimited plans comes from sellers that list them, and USIMS does not.
- Travellers who need a rate held for the whole stay, since USIMS can revise charges and puts the new figures in its app and on its site.
Current offers
USIMS
Current offer
Free trial
Free 1 GB trial data for USA and Europe: 1 GB free
Included with USIMS eSIM plans for the USA and Europe
Source, checked September 30, 2026
Bonus
Free eSIM for first-time users: Free eSIM, $1 to replace a deleted eSIM
Free for first time users and buyers of any data plan; a new eSIM costs $1 if the previous one was deleted
Source, checked September 30, 2026
Questions about each
ESIMZON
What is the cheapest way to get data in the UK from ESIMZON?+
Entry plans start at $1 and are prepaid with no contract, so nothing carries into the next period. The capped-data UK eSIM plan is the lighter option, while the UK unlimited eSIM plans suit heavier use. On our price data, entry sits at 2 of 15 brands.
How much do the unlimited plans cost?+
Unlimited plans start at $2.90, and ESIMZON ranks 1 of 7 brands on that figure. The UK eSIM page lists those unlimited plans alongside a capped-data plan, all prepaid with no contract. Longer monthly plans are not listed, so a heavy monthly user has fewer options here.
USIMS
How much does USIMS cost to start?+
Entry is $2 and billing is prepaid, so you pay for a package rather than a monthly bill. The published data plans are short validity bundles bought per country, and there is no monthly, contract or unlimited tier on the list, which makes the top-up the whole commitment.
Is there a contract or a renewal price to check?+
There is no contract term, and the plan list has no monthly, contract or unlimited tier, so nothing renews on a schedule. Billing is prepaid: when a package runs out you buy another one at the current charge, and the terms let USIMS revise charges and publish them in its app and on its site.