4S eSIM vs MeSIM

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

4SMeSIM

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 MeSIM

ID verification

4S: Not confirmed yet

MeSIM: 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.

MeSIM: Activated or used eSIMs are non-refundable except where required by law, and incompatibility with an unsupported or locked device is generally not refunded. If an eSIM is not delivered or a fault is attributable to mesim or its partners, they may offer a replacement, credit or refund. Contact [email protected] before any payment dispute.

Validity starts

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

MeSIM: For almost all plans validity starts at the first data session in a supported country, not at purchase; most eSIMs should be activated within 30–60 days of purchase (each product page states the exact rule).

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.

MeSIM: "Unlimited" or "high-speed" plans may be subject to fair-use or speed-management policies imposed by network partners (Terms §5); daily-allowance plans state the high-speed amount per day.

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.

MeSIM: Dependant on plan

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.

MeSIM: Most QR codes install only once and deleting an installed eSIM may prevent reinstallation; some networks allow a one-time reissue if the eSIM hasn't been used, not guaranteed.

Billing currency

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

MeSIM: Prices are shown in the selected currency (USD default) at checkout.

Support

4S: Email · Live chat · Help center

MeSIM: Email · Help center · WhatsApp · Monday - Sunday 9:00 - 18:00 AWST + 800

Payment

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

MeSIM: Card

Headquarters

4S: Kowloon, Hong Kong

MeSIM: Australia

Legal entity

4S: Wans Technology Limited

MeSIM: Mathew Wishnu Bowyer

Founded

4S: Not confirmed yet

MeSIM: 2024

Comparison by eSIMKart

Discount codes

4S -15% ESIMKART15

MeSIM -15% ESIMKART15

4S eSIM vs MeSIM — common questions

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

Compare 4S eSIM and MeSIM by destination

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