In a nutshell, the Fitbit Blaze uses sensors to measure your heart rate, sleep, and activity, and it then uses software to automatically tell you if you’re at risk of dying or developing complications from your illness or injury.

Fitbit also uses data from its health tracking app to help manage the Blaze’s device and personalize its features and services.

If you’re worried about your health or fitness, you can access the FitBit Blaze through the Google Play Store or the Amazon Appstore, but you’ll also need an Android phone with a GPS capable of tracking your location.

The Blaze is currently only available in the US, and you’ll need to pay $300 to buy it in Canada and the UK.