Is data necessary for GPS navigation while driving through Japan with EastESIM?

Definitely. While Japan's public transport is excellent, exploring regions like Hokkaido or the Chubu Alps by car offers incredible freedom. EastESIM provides the essential real-time data for GPS navigation apps like Google Maps or Waze, which are crucial for navigating Japan's efficient but sometimes complex road networks. You'll avoid unexpected detours and find hidden gems with ease, ensuring a smooth journey whether you're in urban areas like Tokyo or scenic routes through the countryside.