Hurry! Claim your free ByteSim for your next trip to Japan exclusively on TechRadar

If you’re planning a trip to Japan this winter and worried about how you’ll stay connected, it’s time to forget hunting for a SIM card at the airport or relying on spotty WiFi.

With ByteSim, you can have a simple alternative with its Japan 5G ultra unlimited eSIM by KDDI, one of the country’s strongest networks. Just in time for the holiday season, ByteSim is running a special Christmas offer exclusively for TechRadar readers.

A limited number of users can get this fast and reliable Japan eSIM entirely for free. After that, you can use the promo code TECHRADAR15 to get a 15% discount on your first purchase for your future adventures.

Founded in 2021, ByteSim has quickly risen as one of the most renowned eSIM providers, covering 200+ locations globally.

In our review, ByteSim got extra points for its wide coverage, flexible plans, user-friendly app, and reliable performance, especially in places with sturdy 5G infrastructure (like Japan).

The eSIM connects to KDDI, one of Japan’s most prominent mobile networks, providing you with superior coverage and top speeds across major cities like Tokyo, Osaka, Kyoto, and others. Unlimited data (subject to fair usage policies) makes it ideal for navigation, messaging, streaming, and remote work during short getaways.

One of ByteSim’s best perks is its unrestricted hotspot usage, so you can share your data with laptops or travel companions as much as you want.

Following the purchase, you get a QR code by email, and setup takes only a few minutes. Then, you can monitor usage or recharge your data through the ByteSim app.

Regardless of ‘unlimited’ plans pertaining to fair usage policies, ByteSim transparently displays data caps before you buy, so your trip won’t be ruined by any bad surprises. Combined with Japan’s superb mobile infrastructure and KDDI’s network reliability, ByteSim delivers speedy and stable connectivity for your trip.