◯A feature
· Battery remaining amount displayed in%

· Check how much more games and YouTube can be used from remaining battery

· Confirmation of data traffic volume during the current month / last 3 days

· Check remaining capacity of storage

◯ Recommended for this type

· As soon as you leave the battery cuts 50%

· Frequently use games, YouTube, music apps

· I was caught in communication restrictions unknowingly

· Experience that communication speed slowed significantly

Designed for ease of use, easy to see, simplicity.
If you replace iPhone put it is an app without loss!