Expert guides, tips, and insights to help you navigate Japan's mobile landscape. From carrier comparisons to setup guides tailored for international residents.
Speed comparison of IIJmio, ahamo, and povo in Japan 2026. ahamo and povo run directly on Docomo/au networks with no throttling. IIJmio is an MVNO—faster off-peak, slower at lunch and evening. MMD Research March 2026 ranked povo #1.
Japan's cheapest mobile plans ranked by price for 2026: IIJmio from ¥850/mo (2GB), LINEMO ¥990/mo (3GB, LINE free), Rakuten ¥1,078/mo, povo ¥0 base (pay-as-you-go). Full comparison with data, network, and English support. Updated March 2026.
How to use the Rakuten Mobile coverage map. Search by address or postal code, read the 4G/5G color layers, and check partner zones before you sign up.
What is Rakuten Mobile's partner area? Explains au roaming coverage, data limits, and how to check whether your phone is on Rakuten or KDDI's network.
Rakuten Pay subscription and recurring payment features: setup process, supported payment types, fees, API docs, and comparison with alternatives for Japan-based merchants. Updated 2026.