About RoamTested
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RoamTested is run by a trilingual traveler, testing every eSIM on the ground so you don't have to.
.)How we test
Every eSIM reviewed here is bought with our own money and tested inside mainland China — not from a desk. Each provider goes through the same protocol and is scored 0–10 on 5 weighted criteria:
- App access without a VPN (30%) — Does Google, WhatsApp, Instagram and co. load out of the box? Tested app by app, on the ground.
- Activation & setup (15%) — How painless is install and activation — QR delivery, clear steps, time until first byte.
- Fair-use & throttling transparency (15%) — What "unlimited" really means: the daily high-speed cap, the throttled speed, and whether the policy is published.
- Real-world speed (25%) — Download, upload and latency measured on location in China — not the number on the box.
- Price & value (15%) — Cost per GB, top-up flexibility, and whether the price matches what you actually get.
Speed figures are medians of three Ookla Speedtest runs at the same spot, VPN off, background downloads paused. App access is checked app by app on cellular data only. Every data table carries the city and date it was tested, and results are re-tested on each return trip.
Contact
Questions, corrections, or an eSIM you want tested: hello@roamtested.com