RedteaGO
eSIMFlexible day-pass eSIMs with pay-as-you-go daily plans
Best for: Trips of unusual length (9, 12, 23 days...) where fixed 7/10/15-day bundles force overpaying, and travellers who want a daily throttled-unlimited safety net.
Overview
RedteaGO is the consumer eSIM brand of Redtea Mobile, covering 180+ countries and regions. Its signature Unlimited Packages let you pick anywhere from 1 to 180 days, refreshing a daily high-speed allowance (300 MB basic / 10 GB premium) with unlimited throttled usage afterwards, alongside classic 1–50 GB data-only bundles valid up to 15 days.
What makes RedteaGO different is how the Unlimited Package is priced: you pay a flat day rate instead of buying a fixed-duration bundle, so a 9-day trip or a 41-day working holiday costs exactly what it should — no rounding up to the next preset package. Day rates vary by destination: roughly $0.70/day (300 MB/day basic) or $3.90/day (10 GB/day premium) in Japan, $4.90/day for the 10 GB tier in the USA, and around $4.50/day in the UK. If you burn through the daily allowance, speeds drop but data keeps flowing — handy for maps, messaging and email. Classic data-only bundles (1–50 GB, 1–15 days) suit short trips with predictable usage, and multi-country regional packages undercut buying each country separately. US-destination bundles with calling and SMS are also available for travellers who still need a reachable number.
Beyond travel data, RedteaGO also sells a keep-alive global eSIM (~$3 first year, $3.3/year renewal) that bundles an Austrian phone number with 100 MB and unlimited SMS receiving for 365 days — verified receiving SMS while roaming in mainland China; it must be activated within 3 months of purchase, and the yearly clock starts at activation.
Popular plans
| Plan | Data from | Validity | Price |
|---|---|---|---|
| Japan Unlimited (basic) | 300 MB/day high speed, then throttled unlimited | 2–180 days, per-day pricing | US$0.70/day |
| Japan Unlimited (premium) | 10 GB/day high speed, then throttled unlimited | 1–180 days, per-day pricing | US$3.90/day |
| USA Unlimited (premium) | 10 GB/day high speed, then throttled unlimited | 1–180 days, per-day pricing | US$4.90/day |
| UK Unlimited (premium) | 10 GB/day high speed, then throttled unlimited | 1–180 days, per-day pricing | US$4.50/day |
| Japan data-only bundle | 1 / 3 / 5 / 10 GB | 1–15 days | US$2.50 (1 GB) – US$9.50 (10 GB) |
| USA data-only bundle | 1 / 3 / 5 / 10 GB | 1–15 days | US$1.60 (1 GB) – US$8.30 (10 GB) |
| UK data-only bundle | 1 / 3 / 10 / 20 GB | 1–15 days | US$0.98 (1 GB) – US$10.80 (20 GB) |
| USA bundle with calls & SMS | 1–20 GB, includes US calls & SMS | 1–15 days | US$5.50 (1 GB) – US$29.90 (20 GB) |
| Global eSIM with Austrian number | 100 MB + unlimited SMS receiving | 365 days; activate within 3 months of purchase; renew at US$3.3/year | ~US$3 (first year) |
Prices verified from the redteago.com official storefront in August 2026. Day-pass and bundle prices vary by destination; Japan, USA and UK shown as examples.
Pros
- Pay-per-day pricing fits any trip length without overpaying
- Daily-refreshed high-speed allowance instead of one shared pool
- Throttled unlimited fallback keeps maps and messaging alive
- Calling + SMS bundles available for US destinations
Things to note
- 300 MB/day basic tier is tight for video or hotspot use
- Regional bundle lists mix several similarly named sub-products — check coverage before checkout
- Fewer user reviews and less brand recognition than Airalo or Holafly in Western markets
- Austrian-number global eSIM must be activated within 3 months of purchase or it lapses
Key features
- Unlimited packages with 1–180 day flexibility
- Daily high-speed data refreshes every 24 hours
- Classic 1–50 GB bundles up to 15 days
- 180+ countries and regions covered