4S eSIM vs WorldSIM

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

4SWorldSIM

Unlimited data ✓ Yes ✓ Yes

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 WorldSIM

ID verification

4S: Not confirmed yet

WorldSIM: Not confirmed yet

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.

WorldSIM: Unused, unopened items can be returned within 14 days for a full refund minus postage; faulty products are exchanged or refunded after testing confirms the fault.

Validity starts

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

WorldSIM: Lifetime validity on the airtime credit itself, as long as you top up at least once within the airtime validity period (30/90/180/365 days depending on the bundle bought) to keep it active.

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.

WorldSIM: Not confirmed yet

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.

WorldSIM: Pay-as-you-go: top up airtime credit any time it runs low (via account or short-code), then convert credit into data/call/SMS bundles for any destination — no new eSIM or QR scan needed.

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.

WorldSIM: Not confirmed yet

Billing currency

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

WorldSIM: Checkout offers a currency selector (GBP default, plus AUD, CAD, EUR, INR, ZAR, USD) — the price and currency you pick is what is charged.

Support

4S: Email · Live chat · Help center

WorldSIM: Live chat · Phone · Email · Help center · 24/7

Payment

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

WorldSIM: Not confirmed yet

Headquarters

4S: Kowloon, Hong Kong

WorldSIM: London, United Kingdom

Legal entity

4S: Wans Technology Limited

WorldSIM: WorldSIM Limited (registered in England, company no. 05880013)

Founded

4S: Not confirmed yet

WorldSIM: 2007

Comparison by eSIMKart

Discount codes

4S -15% ESIMKART15

WorldSIM -20% ESIMKART20

4S eSIM vs WorldSIM — common questions

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

Compare 4S eSIM and WorldSIM by destination

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