4S eSIM vs SimSmash

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

4SSimSmash

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 SimSmash

ID verification

4S: Not confirmed yet

SimSmash: 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.

SimSmash: Full refund if the eSIM has not been activated. Once activated, a partial refund pro rata to the unused data is offered within 24 hours of purchase. Contact support.

Validity starts

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

SimSmash: Validity starts on activation, not on purchase; the eSIM can be bought up to 30 days before departure.

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.

SimSmash: 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.

SimSmash: Some plans can be topped up directly when the Top-Up option is shown; otherwise buy a new plan, delivered by email immediately.

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.

SimSmash: 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.

SimSmash: Priced in USD, no taxes added. The listed price is final with the SimSmash wallet or crypto; card payments (Stripe) add a 4.4% fee at checkout, shown before payment.

Support

4S: Email · Live chat · Help center

SimSmash: Email · WhatsApp · Help center

Payment

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

SimSmash: Card · PayPal · Apple Pay · Google Pay · Alipay · WeChat Pay · Crypto

Headquarters

4S: Kowloon, Hong Kong

SimSmash: Not confirmed yet

Legal entity

4S: Wans Technology Limited

SimSmash: Not confirmed yet

Founded

4S: Not confirmed yet

SimSmash: 2025

Comparison by eSIMKart

Discount codes

4S -15% ESIMKART15

SimSmash No live code

4S eSIM vs SimSmash — common questions

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

Compare 4S eSIM and SimSmash by destination

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