4S eSIM vs Global YO

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

4SGlobal YO

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 Global YO

ID verification

4S: Not confirmed yet

Global YO: 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.

Global YO: Full refund within 30 days for unused (not activated) eSIM. Purchases are generally non-refundable once the product is delivered, except where required by applicable consumer-protection law or app-store rules.

Validity starts

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

Global YO: A 1-day eSIM is valid for 24 hours from activation, not until midnight.

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.

Global YO: -Basic Unlimited:1 GB/day of high-speed data - Premium Unlimited:2 GB/day of high-speed data. After that, speeds drop to about 512 kbps, but the plan stays unlimited and data keeps working.

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.

Global YO: Top up an active eSIM anytime from the "My eSIM" area.

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.

Global YO: No — if the eSIM is deleted, the device is lost, factory-reset, or you switch phones, the QR code is single-use and the eSIM can’t be reinstalled. What to do instead: 1. Buy a new eSIM in the app, or 2. Contact support to review replacement options

Billing currency

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

Global YO: Customers are charged in USD at checkout.

Support

4S: Email · Live chat · Help center

Global YO: Email · Live chat · 24/7

Payment

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

Global YO: Apple Pay · Card · Google Pay

Headquarters

4S: Kowloon, Hong Kong

Global YO: The Bronx, New York, USA

Legal entity

4S: Wans Technology Limited

Global YO: YOVERSE INC., a subsidiary of Yonder Media Mobile Inc.

Founded

4S: Not confirmed yet

Global YO: 2020

Comparison by eSIMKart

Discount codes

4S -15% ESIMKART15

Global YO -15% ESIMKART15

4S eSIM vs Global YO — common questions

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

Compare 4S eSIM and Global YO by destination

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