Network
Coverage
Transportability
Speed
Reliability
Good for
Softbank 4G/LTE
Great
Yes
Fast
Good
Line / Google map / VoIP
Light web browsing
Softbank 4G/LTE
Great
Yes
Fast
Good
Watching video (YouTube, etc.)
Heavy web browsing
NTT FLET'S Hikari
Great
No
Super Fast
Great
Watching videos / Playing online games
Heavy internet usage
Network
Support Priority
Good for
Flet’s Hikari fiber-optic network provided by NTT EAST and NTT WEST
High
Watching videos / Playing online games
Heavy internet usage