Ion: Battery Life Prediction and Monitoring

Keep tabs on your smart watch battery performance with drain rate monitoring, low-battery warnings in advance and life span predictions.

Designed for high performance

Effortlessly keep track of your battery life and performance while getting the most out of your Wear OS watch, with accurate battery life forecasts and high-drain rate monitoring.

Power on through the day

We've curated the following features to help you to avoid battery outages when you need your watch the most.
Detailed Graphs
Customisable graphs with battery life, voltage, and temperature. Read temperature statistics in Celsius, Fahrenheit and Kelvin.
Live Countdown
See in real time how long your watch is expected to last any any time from your watch or smartphone.
Customisable Notifications
Get notifications at the start of the day with a battery life prediction, or when your battery life falls below a specified level.
High-Drain Warnings
Get notified on your watch or phone when your battery is draining faster than usual. Know as far in advance as possible in order to avoid outages.
Performance History
Look back on your watch performance over time, and calculate your average battery life expectancy for your watch.
Charge Rate Monitoring
See real-time battery life notificaions on your smartphone while your watch is charging. You can monitor your over a distance when your watch is connected to WiFi.
Customisable Graphs
Customise the appearance of your graph, toggle voltage statistics, and choose between Celsius, Fahrenheit, or Kelvin as your temperature unit.

Stay One Step Ahead

Getting Started
Please ensure that the app is installed on your watch, then open the app to begin monitoring your battery. When your watch is off the charger, you will receive a notification on your watch within the following hour when your battery statistics become available.