Mobile in japanese

I have two questions for use in Japan. Data Passes. International roaming services. International roaming checklist. It claims to be Kbps, but speed tests in most countries are pegged right at Kbps. We have used this feature in 13 or 14 countries.

Japan is a leader in mobile phone technology and use. In addition to calling, email and messaging, Japanese mobile phones were some of the first to widely adopt features such as internet browsers, games, cameras, televisions, electronic wallets, train passes, GPS navigation and music players even before the advent of smartphones. There are also several smaller companies which provide low-cost cell phone plans for residents and mobile internet products for tourists, but they typically use the networks of the big three companies. No contract. No termination fee. Free delivery or collection in Japan.