Fitbit Charge 6
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.
Not available in all countries. Not intended to diagnose or treat any medical condition or for any other medical purpose. Intended to help you manage your well-being and keep track of your information. Requires more frequent charging.
Device temperature sensor (skin temperature variation available in the Fitbit app).
Only available in the Fitbit app and only displays variation. Not available in all markets. Not intended for medical purposes. Significant changes in ambient temperature may negatively impact skin temperature tracking.
Vibration motor
Ambient light sensor
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.
Average battery life is approximate and is based on testing conducted in California in mid 2023 on pre-production hardware and software, using default settings with a median Fitbit user battery usage profile across a mix of talk, data, standby, and use of other features. Battery life depends on features enabled, usage, environment and many other factors. Use of certain features will decrease battery life. Actual battery life may be lower.
Battery type: Lithium-polymer
Charge time (0-100%): Two hours
Radio transceiver: Bluetooth
Memory
Saves 7 days of detailed motion data, minute by minute
Saves daily totals for the last 30 days
Stores heart rate data at 1 second intervals during exercise tracking and at 5 second intervals all other times
Water Resistance

Water resistant to 50 meters. 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.

Charge 6 is designed to comply with a water protection rating of 5 ATM under ISO standard 22810:2010 when manufactured, but it is not waterproof. Water resistance is not a permanent condition and decreases or is lost over time due to normal wear and tear, repair, disassembly or damage. Dropping your Charge 6 may result in loss of water resistance. Charge 6 is designed to be used in shallow water and should not be used for activities involving water at high velocity or high temperature. Some Charge 6 bands are not water resistant. See here for details.

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 6 housing is made of aluminum, glass and resin. The band is made of silicone and has an aluminum buckle.

Heart Rate

Like all heart rate tracking technologies, accuracy is affected by physiology, location of device and different movements.

Environmental Requirements
Operating temperature: 14° to 113°F
Maximum operating altitude: 28,000ft
Compatibility

Google account will be required. See here for compatible devices. 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:

Syncing range: Up to 30ft.

Certain features like smartphone notifications may require Android 9+. Check your device compatibility.
Syncing requires Bluetooth® LE, an internet connection and location permissions granted on the phone.
Band Size

Print this guide to find the right size for you. Both small and large sizes included in box.

Small: Fits wrist 5.1" - 6.7" in circumference

Large: Fits wrist 6.7" - 8.3" in circumference

Dimensions
1.52" l x 0.73" w x 0.46" h
FITNESS
Heart rate on gym equipment
Daily Readiness Score
40+ Exercise Modes
Heart rate tracking
Active Zone Minutes
Built-In GPS
Cardio Fitness Score
SmartTrack™ Automatic Exercise Recognition (in app only)
Water resistant
Workouts on your phone
All-Day Activity Tracking
Workout Intensity Map (in app only)
Timer & Stopwatch
HEALTH
ECG app for heart rhythm assessment
High & Low Heart Rate Notifications
SpO2 (blood oxygen) tracking
Skin temperature variation
Resting heart rate
Breathing Rate
Irregular heart rhythm notifications
Blood glucose tracking (in app only)
Menstrual health tracking
Health & Wellness Reminders
STRESS & SLEEP
Stress Management Score
EDA Scan app for stress management
Sleep Score
Sleep Profile
Sleep tracking & sleep stages
Smart Wake Alarm
SMARTS & MORE
Do not disturb & sleep mode
YouTube Music controls
Google Maps
Google Wallet
Call, text and app notifications
Color touchscreen
Find My Phone
Always-on display mode
7-Day Battery Life
Clock faces & accessories
Compatible with iOS and Android devices
Fitbit Premium membership
Google Fast Pair