4S eSIM vs Yaalo

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

4SYaalo

Unlimited data ✓ Yes ✓ Yes

Regional bundles ✓ Yes No

Global bundles (50+ countries) ✓ Yes No

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 Yaalo

ID verification

4S: Not confirmed yet

Yaalo: 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.

Yaalo: Refunds within 30 days for coverage failures preventing installation, unresolvable Yaalo-caused technical issues with no data used, or incorrect charges; installed or expired plans are non-refundable.

Validity starts

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

Yaalo: Plan validity begins only when the eSIM connects to a mobile network at the destination, so it can be bought and installed early without losing days.

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.

Yaalo: Unlimited plans are throttled after the daily full-speed data allowance is used, per Yaalo Terms of Service; the exact GB threshold and reduced speed are not publicly disclosed.

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.

Yaalo: Add more data or extend validity directly from the Yaalo app or account dashboard, no eSIM reinstall needed, and top-ups apply 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.

Yaalo: 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.

Yaalo: All checkout transactions are processed in US Dollars (USD) only, per Yaalo Terms of Service.

Support

4S: Email · Live chat · Help center

Yaalo: Live chat · WhatsApp · Email · 24/7

Payment

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

Yaalo: Card · PayPal · Apple Pay · Google Pay · Alipay

Headquarters

4S: Kowloon, Hong Kong

Yaalo: Orlando, FL, USA

Legal entity

4S: Wans Technology Limited

Yaalo: Yaalo LLC

Founded

4S: Not confirmed yet

Yaalo: 2021

Comparison by eSIMKart

Discount codes

4S -15% ESIMKART15

Yaalo -10% ESIMKART10

4S eSIM vs Yaalo — common questions

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

Compare 4S eSIM and Yaalo by destination

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