FitBit ALTA HR (Gray/Small)

A slim heart rate wristband that tracks activity, sleep and exercise, displays notifications and sends Reminders to Move.
PurePulse Heart Rate - Get continuous, wrist-based heart rate tracking & simplified heart rate zones.
All-Day Activity - Track steps, distance, calories burned, active minutes, hourly activity & stationary time.
Reminders to Move - Get friendly Reminders to Move that encourage you to reach an hourly goal of 250 steps.
Cardio Fitness Level - Get a better understanding of your fitness level and see how you can improve over time with a personalised Cardio Fitness Score.
Smartphone Notifications - See call, text & calendar alerts on display when your phone is nearby.
Auto Sleep Tracking & Silent Alarms - Automatically track your sleep quality & wake up peacefully with a silent alarm.
Sleep Stages - See your time in light, deep and REM stages to better understand your sleep quality.
SmartTrack - Automatically recognises select activities and records them in the exercise section of the Fitbit app.
Interchangeable Accessories - Switch up your look with accessory bands in metal, leather & more.
Long Battery Life - Battery life up to 7 days so you can track all day & night without needing a charge.
Tap Display - Tap to see your stats, time & notifications on an OLED display, plus customize your clock face.
Syncs Wirelessly - Sync stats wirelessly & automatically to computers and 200+ leading iOS, Android and Windows devices.