Phone & Watch Battery Monitor

Offers in-app purchases

UPDATE NOTICE: Please ensure this app is up to date on both your phone and your watch to ensure compatibility!

SW Energy Monitor is designed to help smart device users to keep track of battery use throughout the day. The app monitors your battery periodically and notifies you with predictions and warnings about your battery use. With this you can be better prepared to avoid any unwanted downtime by knowing well in advance when you'll need to recharge. Since this app was designed for watches first, the monitor is optimised to have minimal impact on your battery life.


NEW Support for handheld devices in addition to Wear OS smart watches.
NEW Watch monitor in notification bar lets you monitor connected watches without opening the app on your phone, whether on or off the charger.
NEW Unlimited connected watches which can be customised individually.
Lightweight and efficient battery monitor optimised for minimal impact on battery.
Drain and charge rates with remaining time based on current use.
Daily predictive notifications with expected battery life for the day ahead.
Customisable settings and alerts for each individual device.
Remote charge monitor lets you see watch charging progress from your phone.
Charge level notifications alert you when your watch is charged to a specified level.
Detailed historic charts with battery life, voltage, and temperature in Celsius, Fahrenheit and Kelvin.
Light and dark modes to match your device theme.

Originally part of the Strange Watch wearable app series by Watch & Navy.

System requirements
Android 7.0 (Nougat) and up.
Recommended minimum display size 1080 x 1920 @ 420dpi

Designed and engineered by Watch & Navy Ltd in London, GB.
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What's New

NEW in 4.1.7: Stability improvements from initial v4 release.

Version 4 is a complete rebuild with added support for handheld devices, a range of new features, and improvements on the old with our newest standards of design and engineering. You can now track your smartphone or tablet battery as well as all of your connected Wear OS watches from one place.

Learn more:
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Additional Information

November 2, 2021
Varies with device
Current Version
Varies with device
Requires Android
8.0 and up
Content Rating
In-app Products
$3.49 - $10.99 per item
Offered By
Watch & Navy Ltd
Brunel House, 320 Firecrest Court Cheshire WA1 1RG
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