Yes, Journey Japan eSIM offers unlimited data plans for Japan. The Unlimited Pro 5G plans provide unlimited data with validity periods of 7 days, 15 days, or 30 days, and the prices range from $31.90 to $86.90. These plans are available on 5G networks, allow tethering, and start their validity when the eSIM first connects to a network.
Because the plans are unlimited, speeds may be reduced after heavy usage under a Fair Usage Policy. If you are concerned about potential speed restrictions, contact Journey Japan eSIM to confirm whether a Fair Usage Policy applies and to learn the typical amount of data that can be used at normal speed.