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
- 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 4.0
Memory
- Saves
7 days of detailed motion and heart rate data, minute by minute
- Saves
daily totals for past 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 meters. 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. Learn more.
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: -4° to 140° F
- Operating
temperature: -20° to 60° C
- Maximum
operating altitude: 28,000 feet
- Maximum
operating altitude: 8,535 m
Syncing
Syncs automatically and wirelessly to most popular phones
and tablets using Bluetooth LE wireless technology.
- Syncing
range: Up to 30 feet
- Certain
features like smartphone notifications may require Android 7.0+. Check your
device compatibility.
- Syncing
to mobile devices requires Bluetooth LE and internet connection.
- Syncs
with Mac OS X 12.2 and up, iPhone 5S and later, iPad 5 gen. and later,
Android 7.0 and later.
- Music
control via Bluetooth LE on Android and iOS devices.
Band Size
Print this guide to find the right size for you. Both small
and large sizes included in box.
Small
- Fits
wrist 5.5" - 7.1" in circumference
- Fits
wrist 140 mm - 180 mm in circumference
Large
- Fits
wrist 7.1" - 8.7" in circumference
- Fits
wrist 180 mm - 220 mm in circumference
Dimensions
- 1.4in
l x 0.9in w x 0.5in h
- 35.8mm
l x 22.7mm w x 12.5mm h