Confirmed from each provider's own site — see the trust card on each provider page for the verification date.
Stellar
abesteSIM
4S
Airalo
ID verification
Stellar:
Not confirmed yet
abesteSIM:
Required for some countries (passport/ID)
4S:
Not confirmed yet
Airalo:
Required for some countries (passport/ID)
Refund policy
Stellar:
Strict no-refund policy: once the eSIM has been delivered/provisioned, refunds are generally not available even if not installed, activated, or used, or if the trip was cancelled or the wrong destination was bought. Refundable only if Stellar confirms the eSIM could not be provided or was technically unusable due to an issue on Stellar's own end. Contact support with order ID, screenshots and device details to request a review.
abesteSIM:
Full/partial refund or replacement if the eSIM fails to install/activate/work due to a fault on abesteSIM's or the carrier's side, or works only intermittently. A 2.5 SGD or 10% (whichever is higher) processing fee applies for device-incompatibility/carrier-lock refunds. No refund for wrong purchases, an expired activation window, expired unused data, wrong checkout email, or once the eSIM has been installed.
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).
Validity starts
Stellar:
Billing starts on either "first network connection" or "first installation" depending on the plan (both real, observed per-plan in the feed) -- check the specific plan's own info dialog. Most plans must be installed within a pre-install window (commonly 180 days) after purchase.
abesteSIM:
Most plans start when the eSIM first connects to a supported network and begins using data; some instead use a fixed start date or activate on installation — stated per plan on its own product page (per their FAQ).
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.
Fair-use limit
Stellar:
Not confirmed yet
abesteSIM:
Some unlimited plans apply a fair-use policy after a high-speed threshold; others state a fixed speed cap (e.g. 5/10/20 Mbps) instead — varies per plan, check the product description (per their FAQ).
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.
Top-ups & rollover
Stellar:
Not confirmed yet
abesteSIM:
No — abesteSIM does not currently support topping up an installed eSIM; buy a new plan once the existing allowance ends (per their FAQ).
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.
Support
Stellar:
Email
abesteSIM:
Email · Live chat · 24/7
4S:
Email · Live chat · Help center
Airalo:
Live chat · Help center · 24/7
Comparison by eSIMKart
