JAPAN TRAVEL • DATA ROAMING
Japan eSIM vs Your Home Carrier’s International Roaming
Heading to Tokyo, Kyoto or Osaka? Compare an ETravelSim Japan eSIM on KDDI (au) with what your own carrier charges for roaming. Prices below are the live ETravelSim plan prices in US dollars.
| 項目 | 携帯会社の海外ローミング | ETravelSim Japan eSIM |
|---|---|---|
| Price | Set by your carrier, by country and by pack. Check the current price before you travel | From $4.50 for 1 GB (30 days); $12.50 for 10 GB; $19.99 for Unlimited (7 days) |
| Plan prices (live) | Depends on the pack you pick | 1 GB $4.50 · 5 GB $7.99 · 10 GB $12.50 · 20 GB $19.99 · 50 GB $35.99 (30 days) · Unlimited 7 / 15 / 30 days $19.99 / $39.99 / $69.99 |
| Extra charges | Possible if you go past the pack, depending on your carrier’s terms | None: fixed prepaid data only |
| Network | Your carrier’s roaming partner | KDDI (au), native profile, 5G where available |
| Setup | Usually activate a pack before you fly | Scan the QR code; activates when the line connects in Japan |
| Hotspot | Depends on the pack | GB plans use your allowance; Unlimited includes 6, 14 or 30 GB depending on length |
| Unlimited speed | Depends on the pack | No fair-use cap: full speed for the whole plan |
| Calls and number | Your normal number and calls keep working | Data only: keep your home SIM for calls |
- ✓Native KDDI (au) 5G
- ✓Unlimited plans with no fair-use cap
- ✓Fully prepaid, no surprise bill
- ✓QR code by email instantly
Japan eSIM questions
Which network does the Japan eSIM use?
KDDI (au) on a native profile, with 5G and 4G LTE.
Is Unlimited really unlimited?
The Unlimited plans have no fair-use cap, so you get full speed for the whole plan. Hotspot is included up to 6 GB (7 days), 14 GB (15 days) or 30 GB (30 days).
How much data and for how long?
GB plans: 1, 5, 10, 20 or 50 GB for 30 days, from $4.50 to $35.99. Unlimited: 7, 15 or 30 days, from $19.99.
When does validity start on Unlimited plans?
On your first connection in Japan, so you can install before you fly.
Do I get a Japanese number, calls or SMS?
No. It is a data-only eSIM. Keep your home SIM for calls and texts.
Can I use hotspot?
Yes. On GB plans it uses your allowance; Unlimited plans include a hotspot allowance.
How does this compare with my carrier’s roaming?
Roaming prices and data limits are set by your carrier and change often. An eSIM is one prepaid plan, so the price and the data are known before you go. Check your carrier’s current pack price and compare.