Meet Fitbit Sense--the advanced smartwatch that helps you tune in to your body and reach your health and fitness goals. Assess your heart for atrial fibrillation (AFib) with the on-wrist ECG app, track & manage stress with an on-wrist EDA sensor, better understand your sleep quality and even keep an eye on patterns in your skin temperature or blood oxygen levels with SpO2. Plus, Sense unlocks a free 6-month trial of Fitbit Premium for new Premium users giving you personalized guidance and advanced insights to help optimize your well-being.


  • Personalized health & fitness guidance with a free 6-month trial of Fitbit Premium for new premium users (new premium users only. Must activate with device. Valid payment method required. Free trial must be activated within 60 days of device activation. Cancel before free trial ends to avoid subscription fees)
  • With a compatible ECG app right on your wrist, assess your heart for atrial fibrillation -a heart rhythm irregularity- and easily share results with your doctor (Now available in Canada. The Fitbit ECG app is only available in select countries. Not intended for use by people under 22 years old. See for additional details)
  • EDA scan app detects electrodermal activity which may indicate your body's response to stress
  • High & low heart rate notifications alert you if yours seems above or below your average
  • An on-wrist skin temperature sensor tracks yours each night so you can see how it varies. You can also see your nightly blood oxygen levels at a glance with our collection of Sp02 clock faces or in the Fitbit app
  • Use built-in GPS during runs, hikes, rides and more to see pace & distance without your phone and use the built-in mic and speaker to take Bluetooth® calls hands-free when your phone is nearby (Requires more frequent charging)
  • Use your voice with Amazon Alexa or Google Assistant built-in to check the weather, set reminders, control smart home appliances and more from your watch (Voice assistant availability and features may vary)
  • Battery lasts 6+ days-plus, fast charging gives you a full day’s charge in just 12 minutes (Varies with use and other factors; up to 12 hours with continuous GPS)


  • Multi-path optical heart rate sensor
  • Multipurpose electrical sensors compatible with ECG app & EDA app
  • Gyroscope
  • Altimeter
  • 3-axis accelerometer
  • Ambient light sensor
  • Wi-Fi (802.11b/g/n 2.4GHz)
  • NFC
  • Built-in GPS + GLONASS
  • Vibration motor
  • Speaker (75dB SPL @10cm)
  • Microphone