Everlast TR8 Black Bluetooth Activity Tracker w/ Heart Rate Monitor (Black). The Everlast TR8 keeps track of all aspects of you active and personal lifestyle. With the companion app, the TR8 tracks your various activities and stat while being able to notify you of texts, alarms, and other preset functions. Package includes: Tracker Watch, USB charging cable, and instruction manual. Wirelessly compatible with iOS 7.0+ and Android 4.4+. Companion app available for free on the App Store and the Google Play Store.Functions:Activities Record - Records daily activities including steps, distance, and calories burned.Sleep Monitoring Device can automatically recognize when you are sleep and starts recording and analyzing your deep sleep, light sleep, and awake times.Notifications Alert Notifies you of call alerts, alarm alerts, sedentary alerts, etc. by silently vibrating.Anti-Loss When the cellphone is beyond the Bluetooth range (5m) the device will vibrate to indicate the distance.Remote Camera Control Activate shooting with device button.HRM Monitors your heart rate effectively.Modes:-time Mode-Step Mode-Calorie Mode-Find phone Mode-Heart Rate Mode-distance Mode-Alarm Mode-Sports Mode Case: Alloy rectangle case Caseback: Stainless steel, snap-down Bezel: n/a Hands: Digital Markers: N/A Case Diameter: 20mm Strap Color: Black Type: Digital, Fitness, Bluetooth, Sport Gender: Male, Female Product Features: Digital Display, Alarm, Bluetooth, Pedometer, Sleep Monitor Material: Rubber, Silicone Case Thickness: 12mm Strap Width: 19mm Strap Movement: Automatic Strap Length: 9 Inch Dial Color: Black Exact Color: Black All measurements are approximate and may vary slightly from the listed dimensions. Most men's watch bands can be sized to fit 7.5-inch to 8.5-inch wrists. Click here to view our Watch Sizing Guide . All measurements are approximate and may vary slightly from the listed dimensions.