4S eSIM vs eSIMo

At a glance

Whole-catalog figures — every active plan each provider sells today.

Price check in popular destinations

The cheapest plan each provider sells for two realistic trip sizes, in the destinations both cover that travelers check most. Every price is a live plan you can buy.

Plan types on offer

4SeSIMo

Unlimited data ✓ Yes No

Regional bundles ✓ Yes ✓ Yes

Global bundles (50+ countries) ✓ Yes ✓ Yes

Cruise / at-sea plans No No

Pay as you go No No

Comparison by eSIMKart

Policies compared

Confirmed from each provider's own site — see the trust card on each provider page for the verification date.

4S eSIMo

ID verification

4S: Not confirmed yet

eSIMo: Not required

Refund policy

4S: Refund eligibility is reviewed case-by-case based on order/eSIM status and reason — no fixed window stated; contact support to request review.

eSIMo: No refunds for unused data, for an eSIM removed after installation, or for a package not activated because the install instructions were not followed.

Validity starts

4S: Most plans start counting on first use, when the eSIM connects and begins using data (checked on your 4S service page).

eSIMo: Starts with the first KB of data used in the destination country, not at purchase — expires when the data runs out or the validity period ends, whichever comes first.

Fair-use limit

4S: Unlimited plans include a high-speed data quota for the full validity period; after it is used, speed drops to up to 1 Mbps until the plan expires.

eSIMo: Unlimited plans get a daily high-speed allowance (shown before purchase); after that, speed drops for the rest of the 24-hour period. Unused daily allowance does not roll over.

Top-ups & rollover

4S: Self-serve top-up (same destination/region only) adds high-speed data to the current plan and extends its validity by the top-up package's own validity period.

eSIMo: Top-ups and plan extensions can be bought in the eSIMo app account and stack onto the same eSIM profile without scanning a new QR code.

Lost device / reinstalling

4S: Each eSIM QR/activation code can only be installed once; a deleted eSIM usually cannot be reinstalled with the same code — contact support for a replacement.

eSIMo: eSIMo's Terms of Use instruct customers not to delete/remove the eSIM after installation, warning that no credit or refund will be given if it's removed -- implying the profile isn't reissued once deleted.

Billing currency

4S: Checkout supports multiple currencies (USD, EUR, GBP, JPY, CNY and others via a currency selector); USD is the default.

eSIMo: Charges in USD by default; other currencies shown for convenience only and may carry conversion fees from ESIMO, the payment provider, or your card issuer.

Support

4S: Email · Live chat · Help center

eSIMo: Live chat · Email · Help center · 24/7

Payment

4S: Google Pay · Alipay · Card · PayPal · Crypto

eSIMo: Card · Apple Pay · Google Pay · PayPal

Headquarters

4S: Kowloon, Hong Kong

eSIMo: Cyprus

Legal entity

4S: Wans Technology Limited

eSIMo: ESIMO LTD and/or ALMA Technologies Ltd (Cyprus)

Founded

4S: Not confirmed yet

eSIMo: 2023

Comparison by eSIMKart

Discount codes

4S -15% ESIMKART15

eSIMo -20% ESIMKART20

4S eSIM vs eSIMo — common questions

Figures on this page come from both providers' live catalogs and are re-checked automatically every day.

Compare 4S eSIM and eSIMo by destination

Head-to-head prices for the destinations travelers check most.