Wattz icon

Wattz

Dustin Brown
System Tools
Version
1.20
Size
684.2 KB
Requires
Android API 28+
4.4 / 5 · 4,990 ratings 29,019 downloads

Updated Nov 3, 2026

Quick answer

A real time battery power consumption and charging indicator in your status bar

Wattz is a simple battery indicator. It shows one of several real time battery metrics right in your status bar. Open the app to see detailed battery metrics and and edit your settings. Notification permissions are required to show the indicator in the status bar. Please open the app once to automatically start the indicator service. This app respects your privacy! • No unnecessary permissions • No ads • No collection of user data of any kind • No sharing data with third parties Detailed battery metrics include: • Power (watts) • Current (amps) • Voltage (volts) • Energy Level (watt-hours and amp-hours) • Temperature (celsius) • Charge Level (percent) • Is Charging (yes/no) • Charging Since (date/time) • Time to Full Charge (duration)

Screenshots

Wattz screenshot 1
Wattz screenshot 2
Wattz screenshot 3
Wattz screenshot 4
Wattz screenshot 5

What’s new

• Add Spanish language translations (contributed by frdarko)

How to install

  1. Download the APK from the button at the top of this page.
  2. Allow “Install unknown apps” for your browser or file manager only, not for every app.
  3. Open the downloaded file and confirm the installation.
  4. If installation fails with “App not installed,” remove an earlier build of the same app first. A signature conflict is the usual cause.

Data safety

  • Every file is checked against its published SHA-256 before it is listed.
  • Files are scanned for malware on every update.
  • The permissions each app requests are listed on its own page.
  • Read the full safety policy for how we test, flag, and delist files.

Frequently asked questions

What is Wattz?
A real time battery power consumption and charging indicator in your status bar
Who develops Wattz?
Wattz is developed by Dustin Brown.
Which Android version does Wattz require?
Wattz requires Android API 28 or later.
What is the current version of Wattz?
The synchronized F-Droid version is 1.20.
Which license does Wattz use?
The signed F-Droid metadata lists MIT.
Where is the source code for Wattz?
https://github.com/dubrowgn/wattz

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