Updated September 30, 2026 · TariffCue Editorial Team
ESIMZON vs KnowRoaming
Where ESIMZON and KnowRoaming differ
| Compare |  ESIMZON |  KnowRoaming |
|---|---|---|
| Price from | $1Lower | $1.75 |
| 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) | USA Unlimited 30 Days: US $68.00, unlimited data, prepaid 30 days (no 12-month 30 GB+ SIM-only plan offered); USA Unlimited 1 Day: US $3.50, unlimited data, prepaid 1 day; USA 1 GB 7 Days: US $3.89, 1 GB, prepaid 7 days |
| Unlimited plan price | $2.90Lower | $3.50 |
| Roaming countries | 130 | from 200 |
| Host network | Partner networks incl. AT&T, O2, Orange, Rogers, TIM, T-Mobile, Verizon, Vodafone | Not confirmed |
| 5G | Yes | Not confirmed |
Same on both: Seller type (Reseller), 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 9.1.
- Price from is lower at ESIMZON: $1 vs $1.75.
- Unlimited plan price is lower at ESIMZON: $2.90 vs $3.50.
- Support channels: only ESIMZON offers Email, Chat.
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.
KnowRoaming
KnowRoaming sells prepaid sim-only eSIM data for travellers who want to buy a plan, use it and walk away, and the USA Unlimited daily plan at $3.50 makes a single heavy-use day cheap. Coverage spans from 200 countries, though the monthly unlimited option is where the range gets expensive.
Score breakdown
| Area | ESIMZON | KnowRoaming |
|---|---|---|
| Cost | 9.9HigherEntry from $1 and unlimited from $2.90, ranking 1 of 7 on unlimited price. | 9.5Entry price of $1.75 and unlimited data at $3.50 put KnowRoaming near the front of both price measures. |
| Offer | 8.9HigherSim only and eSIM throughout, coverage of 130 countries, but a reseller model and email, chat and help centre support. | 8.7Sim-only eSIM plans across from 200 countries, sold on prepaid billing by the day. |
The numbers side by side
| Fact | ESIMZON | KnowRoaming |
|---|---|---|
| Price from | $1 | $1.75 |
| Unlimited plan price | $2.90 | $3.50 |
| Roaming countries | 130 | from 200 |
Also worth a look
co:sim has price from at $0.99, against $1 for ESIMZON and $1.75 for KnowRoaming.
co:sim reviewWhat we checked
ESIMZON
- esimzon.com: 12 facts, checked September 30, 2026
KnowRoaming
- knowroaming.com: 9 facts, checked September 30, 2026
How they place
| Ranking | ESIMZON | KnowRoaming |
|---|---|---|
| Phone plans with eSIM | 4 of 389 | 8 of 389 |
Every fact side by side
| Fact | ESIMZON | KnowRoaming |
|---|---|---|
| Billing | Prepaid | Prepaid |
| Headquarters | India | Not confirmed |
| Support channels | Email, Chat, Help centreCovers more | Help centre |
Where each stands against the rest
| Fact | ESIMZON | KnowRoaming | Median |
|---|---|---|---|
| Price from | $1lowest quarter | $1.75below the median | $5 |
| Unlimited plan price | $2.90lowest quarter | $3.50lowest quarter | $25 |
| Roaming countries | 130above the median | from 200highest quarter | 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.
KnowRoaming
Pros
- Both sim-only and eSIM are offered, so nothing is posted and no store visit is needed, which suits a traveller already carrying a compatible handset.
- Coverage of from 200 countries lets a multi-stop trip stay with a single provider instead of changing SIMs at each border.
- Billing is prepaid, so every purchase is a set figure with no renewal step and no minimum term to serve out.
Cons
- Support runs on help centre only, so a connection that fails overnight leaves a help centre to sort it out.
- KnowRoaming is a reseller rather than a mobile virtual network operator, so a network fault has to be traced through another party; co:sim and BambooSIM answer as their own operators.
- The monthly USA Unlimited option costs many times the entry figure of $1.75, so a full month of heavy use is the expensive end of the range.
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.
KnowRoaming
Who it suits
- Travellers already holding a compatible handset who want data only, bought digitally with no delivery wait.
- Anyone covering a multi-country trip from a single provider, given coverage of from 200 countries.
- Readers who plan a trip day by day and want unlimited data for a single heavy-use moment rather than a capped monthly allowance.
Who should look elsewhere
- Readers who would rather deal with the network's own operation, since co:sim and BambooSIM run as mobile virtual network operators.
- Shoppers who want the lowest starting figure, since ESIMZON starts at $1 against KnowRoaming's $1.75.
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.
KnowRoaming
What does a KnowRoaming plan cost to start with?+
KnowRoaming's eSIM data plans start at $1.75, the entry figure for its lightest option. It is a set price rather than an introductory rate that renews higher, and billing is prepaid, so a reader can work out the whole spend for a trip before buying anything.
How much does unlimited data cost?+
The USA Unlimited daily plan is $3.50 for a full day of unlimited data, which is the figure most useful for anyone planning a trip day by day. The monthly unlimited option is priced far above that, so longer stays work out better with a smaller allowance topped up alongside it.