Fitbit Charge 4 Watch
The Fitbit Charge 4 Watch makes every minute count in your journey to understand your body and activity
Fitbit Charge 4 Watch enables you to mute calls and set a vibrating alarm courtesy of the do not disturb button. With Fitbit 4 you can tap and pay at millions of stores and service stations with no wallet or phone required. Get real time stats as you move with 20- goal Based exercises. Track your all day activity, distance, floors, Active Zone Minutes and calories burned to get the impact on your goals.
Specs
- 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. 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.
- 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
Water Resistance
Water-resistant to 50 metres.
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+. Check your device compatibility.
- Syncing to mobile devices requires Bluetooth LE and internet connection.
- Music control via Bluetooth LE on Android and iOS devices.
Band Size
Print this guide to find the right size for you.
Small
- Fits wrist 140 mm – 180 mm in circumference
- Fits wrist 180 mm – 220 mm in circumference
Dimensions
- 35.8mm l x 22.7mm w x 12.5mm h
Up to 7-Day Battery Life
Track activity, sleep, heart rate and more with 7 days battery life
Oxygen Saturation (SpO2)
Track SpO2 to help you learn when there may be an indication of important changes to your fitness & wellness.⧫⧫
Manage Stress
See your daily Stress Management Score in the app and find calm with guided breathing sessions on your wrist.
Alerts
Use do not disturb or sleep mode to mute calls & set a vibrating alarm for reminders or to wake peacefully.
Health Metrics
Track breathing rate, heart rate variability, skin temperature and more for your well-being in the Fitbit app.⧫⧫⧫
Secure Tap to Pay
Make purchases from Charge 4 at millions of stores or transit stations—no phone or wallet necessary.**
All-Day Activity
Track steps, distance, floors, Active Zone Minutes and calories burned to see how you impact your goals.
Smart Features
Get call, text, calendar and app notifications when your phone is nearby & send quick text replies on Android.
Menstrual Health Tracking
Use Charge 4 with the Fitbit app to follow your cycle, record symptoms and more.