Track your steps, distance, calories burned, active minutes, hourly activity and stationary time.
SmartTrackAutomatically track activities like running, sports and aerobic workouts, then see exercise summaries in the Fitbit app.
Auto Sleep TrackingAutomatically track how long and how well you sleep, set a sleep goal and bedtime reminder to form good habits and wake up peacefully with a silent alarm.
Swim-ProofTrack swimming automatically and 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 day. Call & Text NotificationsWhen 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 MoveTo help you stay active throughout the day, Flex 2 sends Reminders to Move that encourage you to take 250 steps every hour.
Long Battery LifeWith up to 5-day battery life* in an ultra-slim package, you can track all day and night without needing a charge.
Learn how Flex 2 notifications work.
Call Notification
Reminder to Move
Text Notification
Goal Celebration
Silent Alarm
A tracker so small, it’s a big deal.
31.7 x 8.9 x 6.8 mm
Weighs 23.53 g (0.83 oz)
Style it for fitness. Style it for life.
Wristband
These super-slim, swim-proof wristbands are designed with comfort in mind.
BangleHit goals and get compliments in this beautiful, hand-polished bangle.
PendantThis elegant pendant hangs gracefully while tracking your steps, distance and more.**
You’ve never seen fitness like this.See how easily you can transform your tracker from day to night or workout to wedding with Flex 2 accessories and designer collections.
SEE DESIGNER COLLECTIONS
Get the full experience in the Fitbit app.
Sync Wirelessly
Flex 2 syncs wirelessly and automatically to 200+ iPhone, Android and Windows devices.
EXPLORE THE FITBIT APPSEE Fitbit FLEX 2 SPECS AND DETAILS
What's Included Removable Fitbit Flex 2 tracker2 Classic wristbands (small and large)Charging cable Sensors & Components 3-axis accelerometerVibration motor Display LED display with 5 indicator lightsTap twice to see progress against your Main Goal Battery and PowerWe 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-polymerCharge time: One to two hoursRadio transceiver: Bluetooth 4.0 Memory Ses 7 days of detailed motion data—minute by minuteSes daily totals for past 30 days Swim-ProofFitbit 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. We do not recommend wearing Flex 2 in a hot tub or sauna. See www.fitbit.com/productcare for more details.
CareIf 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. Learn more.
MaterialsThe 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.
Environmental Requirements Operating temperature: -10° to 45° CMaximum operating altitude: 9,144 m Syncing & NotificationsUsing Bluetooth LE wireless technology, Fitbit Flex 2 sends smartphone notifications and syncs automatically to computers and 200+ mobile devices. Smartphone notifications may require Android 5.0+. Look up your device to check compatibility.
Syncing range: Up to 6.1 mSyncing requires Bluetooth LE and Internet connection. Windows 10 computers that do not he 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 4.4 and later, and Windows 10 devices.*Your fully charged Fitbit Flex 2 has a battery life of up to five days. Note that battery life and charge cycles vary with use, settings and many other factors; actual results will vary.
**Certain features like auto sleep tracking and SmartTrack may be disabled in the pendant.