Fitbit Charge 4 – Activity Fitness Tracker
Fitbit Charge 4. Take your goals further with this swim proof health & fitness tracker packed with built in GPS, innovative heart rate features, Fitbit Pay and more.
Features
Health
- All-Day Activity Tracking
- Sleep Tracking
- Sleep Tracking with Light, Deep, REM
- Oxygen Saturation (SpO2) Monitoring
- Skin Temperature Variation
- Heart Rate Variability
- Breathing Rate
- Fitbit Premium
- Sleep Score
- All-Day Calorie Burn
- Menstrual Health Tracking
- Stress Management Score
Fitness
- Floors Climbed
- SmartTrack Automatic Exercise Recognition
- Reminders to Move
- 20+ Goal-Based Exercise Modes
- Swim proof
- Real-Time Pace & Distance using Built-In GPS
- Heart Rate Zones
- Personalized Reminders
- Workout Intensity Map
- Active Zone Minutes
Smart
- Smartphone Notifications
- Apps
- Payments
- Up to 7-Day Battery Life
- App Dashboard
- Syncs Wirelessly
- On-Wrist Stats
- Sleep Mode
- Do Not Disturb Mode
- Spotify Control
Design & More
- Customizable Clock Face
- Greyscale Touchscreen
Specification
What’s included
- Fitbit Charge 4
- Classic wristbands (both small & large)
- Charging cable
What’s included in special edition Charge 4
- Fitbit Charge 4
- Woven reflective band (both small & large)
- Classic wristband (both small & large)
- Charging cable
Sensors & Components
- 3-axis accelerometer
- Optical heart rate monitor
- GPS + GLONASS
- Red and infrared sensors for oxygen saturation (SpO2) monitoring
- Device temperature sensor (skin temperature variation available in the Fitbit app)
- Vibration motor
- NFC
- Altimeter
Battery & Power
Battery life up to 7 days, or up to 5 hours with continuous GPS use. Battery life and charge cycles vary with use, settings, and other factors; actual results will vary. We recommend charging every few days to ensure you’re always tracking.
- Battery type: Lithium-polymer
- Charge time (0-100%): Two hours
- Radio transceiver: Bluetooth
Memory
- Saves 7 days of detailed motion and heart rate data, minute by minute
- Saves daily totals for the last 30 days
- Measures heart rate data at 1-second intervals during exercise tracking and at 5-second intervals all other times
Water Resistance
Water-resistant to 50 metres. After swimming or 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. We do not recommend wearing Fitbit Charge 4 in a hot tub or sauna. 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.
Materials
This tracker includes a plastic resin case and the band includes a stainless-steel buckle. The classic band is made of a flexible, durable material similar to that used in many sports watches. The woven band is made from a comfortable polyester.
Heart Rate
Like all heart rate tracking technologies, accuracy is affected by physiology, location of device and different movements.
Environmental Requirements
- Operating temperature: -20° to 60° C
- Maximum operating altitude: 8,535 m
Syncing
Syncs automatically and wirelessly to most popular phones using Bluetooth LE wireless technology.
- Syncing range: Up to 9 metres
- Certain features like smartphone notifications may require Android 7.0+
- Syncing to mobile devices requires Bluetooth LE and internet connection.
- Syncs with Mac OS X 12.2 and up, iPhone 5S and later, Android 7.0 and later.
- Music control via Bluetooth LE on Android and iOS devices.
Band Size
Small
Fits wrist 140 mm – 180 mm in circumference
Large
Fits wrist 180 mm – 220 mm in circumference
Dimensions
35.8mm l x 22.7mm w x 12.5mm h
