By Richard Jasinski·Updated 3 November 2026
Ubigi and GigSky, set out the same way from each company's own website and review listings, read on 20 October 2026. No score and no winner.
On their own published facts, Ubigi is best for frequent and business travellers, remote workers and students; GigSky is best for multi-country trips, business travel, extended stays and cruises. No score and no winner: choose by what your trip needs.
The same facts for each company, from its own website, in the same order. Where a company publishes nothing on a row, the card says so. Left out, because it is not readable for both: based in.
Every line links back to the page it was read from, read on 20 October 2026.
Ubigi: Yes, in 90+ destinations. GigSky: Fair use as stated: 'up to 3.5GB/day at our fastest speeds'; after the daily allotment 'speed will be reduced until the next high-speed data period begins', resetting every 24 hours; the reduced speed varies.
Ubigi: Allowed. 'Use any Ubigi data plan to turn your smartphone into a hotspot.' Monthly plan page: 'Tethering is unlimited'. GigSky: Yes. 'Unlimited hotspot sharing' on the home page.
Ubigi: Ubigi is data only, with no phone number, calls or SMS. GigSky: No number, calls or texts.
Ubigi: For a preloaded eSIM bought on the website: 'only possible if you have not used any of the data plan(s)'. If it is unusable because of a carrier lock or incompatibility, a refund may be possible. GigSky: The SIM and any top-up 'cannot be returned' and unused usage 'will not be refunded' whether or not activated. Subscriptions: if used under 1 GB 'due to an issue with our service or with connectivity', GigSky 'may grant' a full or partial refund at its sole discretion; no refund for elapsed periods.
Ubigi: '24/7 Customer support'. Channels named: an online contact form and a customer service team; the app has self-service. GigSky: '24/7 365-day customer service' and 'Multilingual customer support ready to help anytime', through a Help Center and support tickets.
Ubigi: Data is bought as one-off plans, monthly plans (renewed automatically, cancel after 3 months) or annual plans (for example 2GB per month for 12 months, paid up front). GigSky: 'Add a new plan to your existing GigSky eSIM, no reinstall required'.
Ubigi: 'Smart Start': the plan activates and its validity starts on arrival in a covered area (or immediately if already there). GigSky: Plans activate on arrival: 'turn on your eSIM and it will activate automatically'.
Ubigi: Trustpilot 4.1 out of 5 from 49,112 reviews (newest review 20 October 2026); the App Store 4.6 out of 5 from 11,210 reviews (newest review 22 September 2026); Google Play 4.0 out of 5 from 8,194 reviews (read 20 October 2026). GigSky: Trustpilot 4.3 out of 5 from 7,991 reviews (newest review 20 October 2026); the App Store 4.5 out of 5 from 5,939 reviews (newest review 10 October 2026); Google Play 4.5 out of 5 from 5,441 reviews (read 20 October 2026). Each platform is shown on its own, never added together.
No. Uncompromised Travel is a publication and does not sell eSIMs. Buy from each company's own website or app.
Both companies' websites, app listings and Trustpilot pages were read on 20 October 2026. Prices and terms change, so check them before you buy.
Read next
Built to answer SIM-0208 from the Uncompromised Travel eSIM table. What is shown: what each company's own website, app store listings and Trustpilot page say, read on 20 October 2026, set out the same way for each. No score and no winner. No company paid to be on this page. How this site earns · How we work.
Richard Jasinski · Uncompromised Travel · written from Valencia · first published 3 November 2026 · updated 3 November 2026
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