View product featuresThe heart rate wristband that motivates you to reach your health goals in style. Use PurePulse heart rate to optimse workouts and gain insight into your sleep. Track your all-day activity, plus get smartphone notifications and friendly Reminders to Move.Key features• Get continuous heart rate tracking - all day, during workouts and beyond.• Automatically track your steps, distance, calories burned, active minutes & hourly activity.• Get on-screen reminders that encourage you to reach an hourly goal of 250 steps.• See call, text & calendar notifi cations on display.• Wear your Fitbit up to 5 full days and nights without needing a charge.• Automatically tracks how long you sleep and tracks time spent in light, deep and REM stages.• Tailor your look with interchangeable bands in leather, metal and classic styles.• Water resistantIn the Box• Fitbit Alta HR tracker• Classic wristband• Charging cableWarrantyOne year limited manufacturer warranty