Fitbit Alta Hr Black Heart Rate + Fitness Wristband (Large)

Features:
PurePulse® Heart Rate:Get continuous, automatic, wrist-based heart rate & simplified heart rate zones.
Cardio Fitness Level:Get a better understanding of your fitness level and see how you can improve over time with a personalized Cardio Fitness Score.
All-Day Activity:Track steps, heart rate, distance, calories burned, active minutes, floors climbed, hourly activity & stationary time.
Sleep Stages:See your time in light, deep and REM stages to better understand your sleep quality.
Long Battery Life:Battery life up to 7 days so you can track all day & night without needing a charge.
Smartphone Notifications:See call, text & calendar alerts on display when your phone is nearby.
SmartTrack™:Automatically recognizes 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.

Sizing
• Small: Fits wrists 140 mm - 170 mm in circumference
• Large: Fits wrists 170 mm - 206 mm in circumference
• XL: Fits wrists 206 mm - 236 mm in circumference
• Wristband Width: 16 mm

What's Included?
• Fitbit Alta HR Tracker
• Alta HR classic band
• Charging cable