Ubigi
JapanUbigi offers high-end global cellular connectivity and eSIM services in over 170+ destinations with a large range of affordable prepaid data plans for smartphones, tablets and laptops and connected cars. The brand name is pronounced "You-bee-gee".
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Ubigi eSIM plans for Japan
Ubigi for Japan FAQ
Does Ubigi offer unlimited data in Japan?
Ubigi has no unlimited data plan for Japan right now. Its largest plan includes 200 GB of data.
How many Ubigi eSIM plans are available for Japan?
Ubigi has 50 eSIM plans for Japan, with prices starting at $1.00 per GB.
What is the cheapest Ubigi eSIM plan for Japan?
The cheapest Ubigi plan for Japan is BEST ASIA, which costs $25.00.
How much do Ubigi eSIM plans for Japan cost?
Practical Ubigi plans for Japan start at $2.50 (BEST ASIA) and go up to $188.00 for the largest packages — the price depends on data size and validity. The best value right now is $1.00 per GB.
How do I install and activate an eSIM from Ubigi for Japan?
Buy the plan on Ubigi's site and you'll receive the eSIM by email, usually as a QR code. Add it in your phone settings (Settings → Cellular → Add eSIM) over Wi-Fi before your trip, then enable data roaming for the new line when you arrive. Exact steps can vary by plan — Ubigi shows its own instructions at checkout.
Do Ubigi plans for Japan support 5G and hotspot?
No current Ubigi listing for Japan explicitly confirms 5G, so verify it before paying. Tethering (hotspot) is not confirmed in the current listings — check the plan details at checkout.