What's included
Fitbit Charge 5
Infinity band (small & large)
Charging cable
Sensors & Components
Optical heart rate monitor
3-axis accelerometer
Built-in GPS + GLONASS
Red and infrared sensors for oxygen saturation (SpO2) monitoring
Device temperature sensor (skin temperature variation available in the Fitbit app)
Vibration motor
Ambient light sensor
Radio transceiver: Bluetooth
NFC
Multipurpose electrical sensors compatible with ECG app & EDA Scan app
Battery & Power
Battery life of up to 7 days. Use of the always-on display and SpO2 features will require more frequent charging. We recommend charging your tracker every few days to ensure you are always tracking.
Battery type: Lithium-polymer
Charge time (0-100%): Two hours
Memory
Saves 7 days of detailed motion data, minute by minute
Saves daily totals for the last 30 days
Stores heart rate data at one-second intervals during exercise tracking and at five-second intervals all other times
Water Resistance
Water resistant to 50 metres. After getting the band wet, we recommend drying the band because, as with any wearable device, it's best for your skin if the band is clean and dry. Learn more.
Care
Give your wrist a rest by taking the band off every now and then. If the band gets wet or you sweat in it, remove and completely dry the band before putting it back on. Learn more.
Materials
The Charge 5 housing is made of aluminium, glass and resin. The band is made of silicone and has an aluminium buckle.
Heart Rate
Like all heart rate tracking technologies, accuracy is affected by physiology, location of device and different movements.
Environmental Requirements
Operating temperature: -10° to 45°C
Maximum operating altitude: 8535m
Syncing
The Fitbit app is compatible with most popular phones. To set up and use your Fitbit products and services, you must install the Fitbit app on a compatible device running one of the following operating systems:
Apple iOS 12.2 or higher.
Android OS 8.0 or higher. See additional tips for Android phones here.
Syncing range: Up to 9m
Certain features like smartphone notifications may require Android 8.0+. Check your device compatibility.
Syncing requires Bluetooth LE and internet connection.
Syncs with Mac OS X 12.2 and up, iPhone 5S and later, Android 8.0 and later.
Band Size
Print this guide to find the right size for you. Both small and large sizes included in box.
Small: Fits wrist 130mm - 170mm in circumference
Large: Fits wrist 170mm - 210mm in circumference
Window Size
Viewing area: 26.43mm diagonal
Screen height: 21.93mm
Screen width: 14.75mm | 
