BatteryPhone 4+

Keietsu Yasuhara

Designed for iPhone

    • 3.7 • 119 Ratings
    • Free


You can check the battery status of your phone and watch with your watch.
Compatible with complications (automatic update).
You can check the charging amount and charging status of the phone in a timely manner from the clock face.
We will notify you by a notification when the charge amount of the phone or watch becomes less than the specified% or becomes full charge.

- Set up complications with the watch app on your watch or phone.
- The battery status displayed in the complication is automatically updated approximately every 12 to 60 minutes.
 The reason why the update interval has a range is that it depends on Watch OS.
 If the automatic update has stopped (for example, there is no update for more than 1.5 hour), tap the complication to restart it.
 In the iPhone app, the latest update time is displayed under the watch's charge status display.
- Tap the complication to update to the latest status.
- A circular complication can be assigned to the outer circle and the inner number to indicate the battery level of the phone and watch, respectively.

I am a Japanese developer.
The support site can be translated into various languages with the "Translate" option on the right side of the site.

What’s New

Version 4.1

Added a circle display to the complication modular small. You can select text display or circle display.

Ratings and Reviews

3.7 out of 5
119 Ratings

119 Ratings

ecosystem for life ,

Beat Apple at something

Ever since I got my Apple Watch I was hoping that I would be able to check my phone battery level without taking out my phone but with the stock apps from Apple, the Apple Watch simply doesn’t do that, but battery phone did. I am a long time user and can recommend it with confidence. However, recently, when both the battery levels on my Apple Watch as well as phone would drop below the percent o would program the app to notify me, the app would not notify me until I actually open it. Can there be an update to fix this issue?

MLGToaster ,

Really good but still has some room to improve,

I really like this, makes it easy to get a rough estimate of my phones battery without having todo anything, which leads me to one of two complaints. The complication should be able to update faster. 10? Maybe 15 minutes instead of 30. And AirPods support would be pretty cool as well. Just have every battery right there when you need it

Vmurp ,

Settings don’t work

The complication settings don’t work. I’m using the new series 4 infograph modular face, and I want to set mine to show 2 numbers inside a circle, just like your image shows.

But when I change the settings, the watch complication does NOT change. It only shows an iPhone icon with a number underneath showing only the phone battery. I want to see BOTH numbers for phone AND watch. But it only shows one, even though I chose a different setting.

Same thing on the infograph (round) face. I can see both numbers if I put the complication in one of the corners, but if I use the CENTER complications, it does the same thing as the above. Changing the settings won’t change the complication.

Developer Response ,

After changing the setting, tap on the watch's complication.

App Privacy

The developer, Keietsu Yasuhara, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Used to Track You

The following data may be used to track you across apps and websites owned by other companies:

  • Usage Data

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Location
  • Identifiers
  • Usage Data
  • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More

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