Fit for every you
Our most iconic tracker, now more customisable than ever.
Track activity & sleep and get notifications with this ultra-slim swim-proof wristband. The removable tracker fits in band, bangle & pendant accessories.
Make fitness fun, day and nightAll-Day Activity Tracking
- Interchangeable Accessories
- Reminders to Move
- Auto Exercise Recognition
- Call & Text Notifications
Track your steps, distance, calories burned, active minutes, hourly activity and stationary time.SmartTrack
Automatically track activities like running, sports and aerobic workouts, then see exercise summaries in the Fitbit app.Auto Sleep Tracking
Automatically track how long and how well you sleep, set a sleep goal and bedtime reminder to form good habits & wake up peacefully with a silent alarm.Swim-Proof
Track swimming automatically & see your exercise summary in the Fitbit app. Plus, never worry about making a splash—from bubble baths to beach days.
Stay connected to your dayCall & Text Notifications
When you get calls and texts, Flex 2
vibrates and the discreet LED display flashes colour-coded lights, so you don’t miss the messages that matter.Reminders to Move
To help you stay active throughout the day, Flex 2
sends Reminders to Move that encourage you to take 250 steps every hour.Long Battery Life
With up to 5-day battery life* in an ultra-slim package, you can track all day and night without needing a charge.
Get the full experience in the Fitbit appSync WirelesslyFlex 2
syncs wirelessly and automatically to 200+ iPhone, Android and Windows devices.Eat Better
Plan meals, log food, and see your calories in vs. out with Fitbit’s easy-to-use food tools.Manage Weight
Track your weight, BMI, lean mass & body fat. Connect to the Aria® Wi-Fi Smart Scale to sync your stats automatically.Share & Compete
Add friends so you can share stats, compete in challenges and keep each other inspired.Set Goals
Set weekly exercise goals to keep yourself accountable, and use MobileRun™ to see your pace and distance.
- All-Day Activity Tracking
Track steps, distance, calories burned, active minutes, hourly activity & stationary time.
- Auto Sleep Tracking & Silent Alarms
Automatically track your sleep quality & wake up peacefully with a silent alarm.
- Interchangeable Accessories
Style this ultra-slim, removable tracker with wristband, bangle and pendant accessories.
- LED Display
An LED display lights up when you get calls, texts and Reminders to Move, and shows you how close you are to your daily goal with a simple tap.
Automatically recognizes select activities and records them in the exercise section of the Fitbit app.
- Reminders to Move
Get friendly Reminders to Move that encourage you to reach an hourly goal of 250 steps.
- Smartphone Notifications
Get call & text notifications (when your phone is nearby) with unique vibration patterns and color-coded LED lights: blue for calls, purple for texts.
Wear it in the shower, ocean or pool. Track swimming automatically and see your workout summary in the Fitbit app.
- Long Battery Life
Battery life up to 5 days so you can track all day and night without needing a charge.*
- Wireless Syncing
Sync stats wirelessly & automatically to computers and 200+ leading iOS, Android and Windows devices.
*Battery life and charge cycles vary with use, settings, and other factors; actual results will vary.SpecsWhat's Included
- Removable Fitbit Flex 2 tracker
- 2 Classic wristbands (small and large)
- Charging cable
Sensors & Components
- Small: Fits wrists 14 cm - 17 cm in circumference
- Large: Fits wrists 16.5 cm - 20.6 cm in circumference
- 3-axis accelerometer
- Vibration motor
Battery and Power
- LED display with 5 indicator lights
- Tap twice to see progress against your Main Goal
We recommend charging your Fitbit Flex 2
every few days to ensure that you're always tracking. Battery life up to 5 days. Battery life and charge cycles vary with use, settings, and other factors; actual results will vary.
- Battery type: Lithium-polymer
- Charge time: One to two hours
- Radio transceiver: Bluetooth 4.0
- Saves 7 days of detailed motion data—minute by minute
- Saves daily totals for past 30 days
- Fitbit Flex 2 is the first swim-proof device from Fitbit, meaning it is water resistant to 50 meters. After swimming or getting the band wet, we recommend drying off the band because, as with any wearable device, it's best for your skin if the band is clean and dry.
- If the band gets wet or if you sweat in it, remove and completely dry the band before putting it back on. Give your wrist a rest by taking the band off every now and then.
- The Fitbit Flex 2 wristband is made of a flexible, durable elastomer material similar to that used in many sports watches. Flex 2 also has a surgical-grade stainless steel clasp.
Syncing & Notifications
- Operating temperature: -10° to 45° C
- Maximum operating altitude: 9,144 m
Using Bluetooth LE wireless technology, Fitbit Flex 2
sends smartphone notifications and syncs automatically to computers and 200+ leading iOS, Android and Windows devices. Certain features like smartphone notifications or Connected GPS may require Android 5.0+.
- Syncing range: Up to 6.1 m
- Syncing requires Bluetooth LE and Internet connection. Windows 10 computers that do not have Bluetooth LE will need a wireless sync dongle in order to sync.
- Syncs with Mac OS X 10.6 and up, iPhone 4S and later, iPad 3 gen. and later, Android 4.3 and later, and Windows 10 devices.