Fit for every you.

Our most iconic tracker, now more customisable than ever.

Our slimmest wristband yet
Removable tracker fits in bands, bangles and pendants

Standout Features

  • Swim-Proof Track swimming
  • Interchangeable Accessories
  • Reminders to Move
  • SmartTrack Auto Exercise Recognition
  • Call & Text Notifications

Essential Features

  • All-Day Activity
  • Auto Sleep Tracking
  • LED Display Shows progress to goal
  • Long Battery Life Up to 5 days*

For wherever life takes you.

Make fitness fun, day and night.

All-Day Activity Tracking

Track your steps, distance, calories burned, active minutes, hourly activity and stationary time.


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 and wake up peacefully with a silent alarm.


Track 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 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.

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)
Flex 2 Circle

Style it for fitness. Style it for life.


These super-slim, swim-proof wristbands are designed with comfort in mind.


Hit goals and get compliments in this beautiful, hand-polished bangle.


This 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.


Get the full experience in the Fitbit app.

Sync Wirelessly

Flex 2 syncs wirelessly and automatically to 200+ iPhone, Android and Windows devices.


Make your move.


*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.