Confirmed from each provider's own site — see the trust card on each provider page for the verification date.
ID verification
4S:
Not confirmed yet
Airalo:
Required for some countries (passport/ID)
GigSky:
Not required
Ubigi:
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.
Airalo:
Self-service refund request from your account (My eSIMs > Package History > Request Refund) for wrong purchase, changed plans, installation issues, or a non-working eSIM — expired or fully-used eSIMs aren't eligible. Wrong-purchase/changed-plans refunds go to Airmoney (their in-app credit) only; installation-issue/not-working refunds can go to Airmoney or your original payment method, taking 7-10 business days (up to 30 depending on your bank).
GigSky:
SIMs and top-ups can't be returned once sold and unused data isn't refunded; a minimally used subscription plan (under 1GB) affected by a connectivity issue may be refunded at GigSky's discretion.
Ubigi:
Refunds only for unused plans — a plan can't be refunded once you start using it. Requests within 14 business days of purchase, processed within 10 business days to the original payment method.
Validity starts
4S:
Most plans start counting on first use, when the eSIM connects and begins using data (checked on your 4S service page).
Airalo:
Validity starts either when the eSIM connects to the destination network or at the moment of installation, depending on the specific plan — check 'Additional Information > Activation Policy' on the plan page before buying to see which applies.
GigSky:
Plans are turned on by the customer when ready to travel, not automatically at purchase, per GigSky's setup flow ('Activate When You Travel, Top Up Anytime').
Ubigi:
Smartstart: the plan's validity countdown begins when you first connect at your destination, not at the moment of purchase. Preloaded eSIM QR codes must be redeemed within 6 months of purchase or they expire unused.
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.
Airalo:
Unlimited plans default to a 3GB-per-day full-speed allowance before throttling to 1 Mbps for the rest of that 24-hour period (counted from activation, not purchase); a different daily threshold is stated on the specific plan's page when it applies instead of the 3GB default.
GigSky:
On Unlimited plans, GigSky may reduce speed during a single day of very heavy use (e.g. video streaming); normal speed resumes the next day. No specific data threshold or throttled speed is disclosed.
Ubigi:
Unlimited plans run at full speed up to a threshold, then drop to 2 Mbps: about 15–25 GB on 7-day country plans and 60 GB on 30-day regional plans, depending on the destination.
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.
Airalo:
Only plans marked 'rechargeable' (checkable under Additional Information before buying) can be topped up, via the My eSIMs > Top Up option in the app — a non-rechargeable eSIM or one that changed carriers requires buying a new eSIM instead.
GigSky:
Eligible plans can be topped up anytime in the GigSky app (My Plans > Top Up), with the data added to the existing plan; not every plan supports top-ups and complimentary Visa plans can't be topped up.
Ubigi:
Existing Ubigi eSIMs can be recharged with a new data plan directly through the Ubigi app or ubigi.me account — even without Wi-Fi or remaining data — without installing a new eSIM.
Support
4S:
Email · Live chat · Help center
Airalo:
Live chat · Help center · 24/7
GigSky:
Live chat · Phone · Email · Help center · 24/7
Ubigi:
Live chat · WhatsApp · Help center
Comparison by eSIMKart
