Why Pay More for the Same Network?
Real scenarios. Real savings. Click to expand.
Bangkok → Singapore → Bali. Three countries, one eSIM. No swapping SIMs, no hunting for WiFi at each border.
AT&T
International Day Pass
$12/day · Unlimited*
$168
T-Mobile
30-Day International Pass
$50 flat · 15GB high-speed
$50
CaliSim
Asia 7 Areas
One-time · 10GB high-speed
$21
$168 → $21
You save $147. That's 49 bowls of pho.
Same High-Speed Network
We connect directly to local carriers. Same 4G/LTE speeds—often better than roaming.
No Qualifying Plan Required
Unlike carrier passes, CaliSim works independently. No postpaid plan needed.
* AT&T "unlimited" is subject to network management after certain thresholds.
Carrier prices accurate as of January 1, 2026. CaliSim pricing may vary.