4S eSIM vs shibaSIM

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

4SshibaSIM

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 shibaSIM

ID verification

4S: Not confirmed yet

shibaSIM: 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.

shibaSIM: Contact support within 7 days of purchase if a provider-side technical fault prevents activation, or for a mistaken plan whose QR code has not been installed or used. Approved refunds return to the original payment method in 5–10 business days. No refund once activated or used.

Validity starts

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

shibaSIM: Validity starts when the eSIM first connects to a network at the destination, unless the plan description states otherwise.

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.

shibaSIM: Daily plans: a fixed amount of high-speed data per day (0.5GB to 5GB depending on the plan), then data continues at reduced speed.

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.

shibaSIM: Not offered: no self-service top-ups; customers buy a new plan instead.

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.

shibaSIM: 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.

shibaSIM: International checkout charges USD; Vietnamese checkout charges VND.

Support

4S: Email · Live chat · Help center

shibaSIM: Email · WhatsApp · 08:00–22:00 JST, in English

Payment

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

shibaSIM: Card · Apple Pay · Google Pay · Link

Headquarters

4S: Kowloon, Hong Kong

shibaSIM: Tokyo, Japan

Legal entity

4S: Wans Technology Limited

shibaSIM: shibaSIM

Founded

4S: Not confirmed yet

shibaSIM: 2026

Comparison by eSIMKart

Discount codes

4S -15% ESIMKART15

shibaSIM -5% ESIMKART5

4S eSIM vs shibaSIM — common questions

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

Compare 4S eSIM and shibaSIM by destination

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