Make every beat count with Charge HR - a high-performance wristband with automatic, continuous heart rate and activity tracking right on your wrist. See heart rate all day and during workouts to get more accurate calorie burn, reach your target workout intensity and maximize training time. Track steps, distance, floors climbed and sleep quality and more, and stay connected with Caller ID and time of day on display. Charge HR also wirelessly syncs to your smartphone and computer so you can monitor your trends and get the motivation you need to push yourself furtheråÊ-åÊevery step, every beat, every day.
Automatic heart rate monitoring
Whether you're working out or resting, this wristband accurately measures your heart rate with LED sensors that detect blood flow in your wrist.
Maximize training with heart rate zones
Know when to speed up, slow down or maintain your intensity.
Get motivated with instant personal stats right on your wrist
Accurately track your heart rate, steps taken, stairs climbed, calories burned, distance traveled and active minutes.
Check your stats, even in low-light conditions
The backlit digital LED display offers a clear view no matter the lighting.
Discover your sleep patterns
Monitor how long and how well you sleep. Wake peacefully without disturbing your partner with the silent, vibrating alarm.
Designed with comfort in mind
The textured band is durable enough to withstand rain, the shower and your sweatiest workout, and comfortable enough to wear while you sleep.
Free online tools provide a network of support
Monitor your progress online with a customizable dashboard equipped with tools, charts and graphs so you can visualize your progress. Log your workouts and meals for insight into your daily habits.
Challenge your friends and celebrate progress for extra motivation
Share and compete with your friends and family in challenges and on the leaderboard. Earn Fitbit badges and milestone updates.
Get call notifications on your wrist
Caller ID displays incoming calls from your phone, keeping you connected on the go.
Track your runs, walks and hikes
MobileRun provides real-time distance, time and pace stats on the display. Sync with your phone to review routes, split times and workout summaries.
See real-time progress by syncing wirelessly with smartphones and computers
Automatically syncs with select devices, saving you the hassle of having to connect cords or manually enter data.
2 size wristband to suit all sizes
Adjustable circumference gives you just the right fit. Choose between small (fits wrist 5.5" to 6.5") or large (fits wrists 6.3" to 7.6")
Rechargeable battery
Lithium-ion battery allows for convenient recharging without the hassle of buying and installing replacements.
Technical Specs
What's Included
- Charging cable
- Wireless sync dongle
Sizing
Size Small
fits wrists
14 - 16 cm
21 mm
Size Large
Sizing varies across trackers. Use this guide to pick the right fit & size up if you're between sizes.
Sensors & Components
- Optical heart rate monitor
- 3-axis accelerometer
- Altimeter
- Vibration motor
Display
Heart Rate
Like all heart rate monitoring technologies, accuracy is affected by physiology, location of device, and different movements. Learn more about wear during workouts.
Battery and Power
We recommend charging your device every few days to ensure you are always tracking.
- Battery life: lasts up to 5 days
- Battery type: Lithium-polymer
- Charge time: One to two hours
- Radio transceiver: Bluetooth 4.0
Memory
- Tracks 7 days of detailed motion data – minute by minute.
- Tracks daily totals for past 30 days
- Stores heart rate data at 1 second intervals during exercise tracking and at 5 second intervals all other times
Water Resistance
Charge HR is sweat, rain and splash proof. However, the device is not swim proof or showerproof. With any wearable device, it’s best for your skin if the band stays dry and clean.
Care
If the band gets wet or if you sweat in it, remove and completely dry the band before putting it back on. Clean the band with a mild soap-free cleanser like Cetaphil or Aquanil. Give your wrist a rest by taking the band off every now and then. Learn more.
Materials
Charge HR's wristband is made of a flexible, durable elastomer material similar to that used in many sports watches. Charge HR also has a surgical-grade stainless steel buckle.
Environmental Requirements
- Operating temperature: -20° to 45° C
- Maximum operating altitute: 9,144 km
Syncing
Charge HR syncs automatically and wirelessly to tablets, computers and 200+ leading iOS, Android and Windows smartphones using Bluetooth 4.0 wireless technology.
- Syncing range: 6 m
- Call notifications via Bluetooth 4.0
- Syncing to computers requires Internet connection and USB port
- Syncing to mobile devices requires Bluetooth and Internet connection
- Syncs with Windows Vista and later, Mac OS X 10.6 and up, iPhone 4S and later, iPad 3 gen. and later, and leading Android and Windows devices
