Fitbit Sense 2 Smartwatch
Manage stress and sleep better.
Health and fitness
Whole health on a whole new level.
Use the ECG app for on-demand atrial fibrillation assessment or turn on irregular heart rhythm notifications to assess your heart while you're still or sleeping.3
Heart-rate tracking surfaces insights from your sleep, stress, activity and more while high and low heart rate notifications keep a close eye on your heart rate.
Explore more health and fitness features.
Stress and Sleep features
All-day body-response tracking
A cEDA sensor helps identify when your body is experiencing signs of stress so you can reflect on your emotions, take action and go on with your day.
Some features require Fitbit mobile app. Use of the cEDA sensor may affect battery life.
Stress notifications
EDA Scan app for stress management
Reflections
Stress Management Score
Relax breathing sessions
Sleep tracking & sleep stages
Sleep Profile
Get matched with a sleep animal and see a personalised analysis of your sleep every month. Requires Fitbit Premium membership.
Requires Fitbit Premium membership. Not intended for medical purposes. Consult your healthcare professional for questions about your health.
Sleep Score
Smart Wake alarm
Health features
SpO2 (Blood Oxygen) Tracking
Tracking SpO2 tells you how well blood oxygen is distributed in your body, which can help you understand potential changes in your wellness.
Not available in all markets. Not intended to diagnose or treat any medical condition or for any other medical purpose. Intended to help you manage your well-being and keep track of your information. Requires more frequent charging.
Irregular heart rhythm notifications
Check for signs of an irregular heart rhythm that may be atrial fibrillation (AFib), so you can share this information with your healthcare provider.
The ECG app and irregular heart rhythm notifications feature are only available in select countries and with select Fitbit products; not intended for use by people under 22 years old. The irregular rhythm notifications feature is not intended for use by people with known atrial fibrillation. See here for additional details.
ECG app for heart rhythm assessment
Compatible ECG app lets you assess your heart rhythm for atrial fibrillation—a heart rhythm irregularity—and share results with your doctor.
The ECG app and irregular heart rhythm notifications feature are only available in select countries and with select Fitbit products; not intended for use by people under 22 years old. The irregular rhythm notifications feature is not intended for use by people with known atrial fibrillation. See here for additional details.
Resting heart rate
High and low heart rate notifications
Heart rate variability
Tracks HRV–your time between heartbeats. A downward trend over multiple nights could potentially be a result of overtraining, lack of sleep, stress and more.
Only available in select countries. Not intended for medical purposes or to diagnose or treat any medical condition. This feature is only intended to provide information to assist you with managing your well-being.
Skin temperature sensor
A built-in sensor tracks changes in your skin temperature to help you understand potential changes in your wellness.
Only available in the Fitbit app and only displays variation. Not available in all markets. Not intended for medical purposes. Significant changes in ambient temperature may negatively impact skin temperature tracking.
Breathing rate
Small variations in your breathing rate could be a sign of changes in your well-being.
Only available in select countries. Not intended for medical purposes or to diagnose or treat any medical condition. This feature is only intended to provide information to assist you with managing your well-being.
Wellness Report
Get a PDF of your key health & wellness stats from the last few months that you can share with a healthcare professional.
Available with Premium.
Blood glucose tracking (in app only)
Log your glucose levels and see how activity, sleep, stress & nutrition impact your trends in the Fitbit app. Advanced analytics available with Premium.
Advanced analytics available with Fitbit Premium. Available in select countries. Not a replacement for medical advice and not intended to diagnose or treat any medical condition. Intended to help you monitor and keep track of your information. Talk to your healthcare provider for more guidance.
Menstrual health tracking
Log periods, record symptoms, find patterns in your cycle & estimate your ovulation window.
Not intended to be used for contraceptive or other medical purposes. May not accurately predict your menstrual cycles or related information. Intended only to help you monitor and keep track of certain information.
Fitness features
Heart Rate Tracking
Daily Readiness Score
Active Zone Minutes
Built-in GPS
Exercise modes
Steps, distance & calories
Water-resistant
You’re covered to 50m, so dance in the rain if that’s how you want to work out today.
Sense 2 is designed to comply with a water protection rating of 5 ATM under ISO standard 22810:2010 when manufactured, but it is not waterproof. Water resistance is not a permanent condition and decreases or is lost over time due to normal wear and tear, repair, disassembly or damage. Dropping your Sense 2 may result in loss of water resistance. Sense 2 is designed to be used in shallow water and should not be used for activities involving water at high velocity or high temperature. Some Sense 2 bands are not water resistant. See here for details.
Cardio fitness score
SmartTrack Automatic Exercise Recognition (in app only)
Workouts on your phone
Sweat to high-energy workouts in the Fitbit app, from Fitbit trainers & popular partner brands. Most workouts require a Premium membership.
Premium content and features may vary, recommendations are not available in all locales and may be in English only.
Smarts and more
Call, text and app notifications
See calls, texts & smartphone app notifications on your wrist when your phone is nearby.
Works with most phones running Android 9 or iOS 16.4 or newer. Requires Google Account and internet access.
On-wrist Bluetooth® calls
Answer calls on your wrist, send callers to voicemail and adjust volume (when your phone is nearby).
Require LTE or a paired phone within Bluetooth range of your Fitbit device.
Alexa Built-in
Use Alexa Built-in to get quick news and weather, set alarms, control your smart home devices and more
Amazon, Alexa and all related marks are trademarks of Amazon.com, Inc. or its affiliates. Alexa is not available in all languages and countries. Alexa features and functionality may vary by location. Amazon account and app required.
Google Maps
Easily get where you're going with an interactive view and turn-by-turn directions on your wrist.
Some Google apps and services require a paired phone within Bluetooth range of your device and are not available in all countries or languages. Data rates may apply.
Google Wallet
Make purchases from your wrist with Google Wallet everywhere Google Pay is accepted.
Data rates may apply. Works with most phones running Android 9 or iOS 16.4 or newer. Requires Google Account and internet access. Google apps are not available in all countries or languages. Data rates may apply.
Find My Phone
Always-on display mode
Do not disturb & sleep mode
Compatible with iOS and Android devices
Slim Design
6+ Day Battery
Long battery life means less charging, more living.
Battery life varies with use & other factors; GPS may reduce battery life.
Fast charging
Get a day's worth of battery in just 12 minutes.
Battery life varies with use & other factors.
Clock faces and accessories
Colour touchscreen
Fitbit Premium Membership
- 1New and returning Fitbit Premium members only. Must activate membership within 60 days of device activation. Valid form of payment required. After the 6 mos, renews at £7.99/mo or £79.99/yr (based on your registration). Cancel anytime. Membership cannot be gifted. See here for more details. T&C apply.
- 2Fitbit Premium content and features may change. Content recommendations are not available in all locales and may be in English only.
- 4The ECG app and irregular heart rhythm notifications feature are only available in select countries and with select Fitbit products; not intended for use by people under 22 years old. The irregular rhythm notifications feature is not intended for use by people with known atrial fibrillation. See here for additional details.
- 5Data rates may apply. Google apps are not available in all countries or languages. Requires compatible phone running Android 10.0 or newer within Bluetooth range of your Fitbit device, a Google Account and internet access.
- 6Your compatible phone must be in Bluetooth range of your Fitbit device to use this feature. Android only.
- 7Battery life varies with use & other factors; GPS may reduce battery life.
- 8Voice assistant availability and features may vary, see here. Amazon, Alexa and all related marks are trademarks of Amazon.com, Inc. or its affiliates. Alexa is not available in all languages and countries. Alexa features and functionality may vary by location.
- 9Not intended to be used for contraceptive or other medical purposes. May not accurately predict your menstrual cycles or related information. Intended only to help you monitor and keep track of certain information.
- 11Requires Fitbit Premium membership. Not intended for medical purposes. Consult your healthcare professional for questions about your health.
Shop 24mm attach accessories
Shop 24mm attach accessories
Level up your fitness routine with Fitbit Premium.
Level up your fitness routine with Fitbit Premium.
- 1New and returning Fitbit Premium members only. Must activate membership within 60 days of device activation. Valid form of payment required. After the 6 mos, renews at £7.99/mo or £79.99/yr (based on your registration). Cancel anytime. Membership cannot be gifted. See here for more details. T&C apply.
- 2Fitbit Premium content and features may change. Content recommendations are not available in all locales and may be in English only.
- 3The ECG app and irregular heart rhythm notifications feature are only available in select countries and with select Fitbit products; not intended for use by people under 22 years old. The irregular rhythm notifications feature is not intended for use by people with known atrial fibrillation. See here for additional details.
- 4Data rates may apply. Google apps are not available in all countries or languages. Requires compatible phone running Android 10.0 or newer within Bluetooth range of your Fitbit device, a Google Account and internet access.
- 5Your compatible phone must be in Bluetooth range of your Fitbit device to use this feature. Android only.
- 6Battery life varies with use & other factors; GPS may reduce battery life.
- 7Voice assistant availability and features may vary, see here. Amazon, Alexa and all related marks are trademarks of Amazon.com, Inc. or its affiliates. Alexa is not available in all languages and countries. Alexa features and functionality may vary by location.
- 8Not intended to be used for contraceptive or other medical purposes. May not accurately predict your menstrual cycles or related information. Intended only to help you monitor and keep track of certain information.
- 9Requires Fitbit Premium membership. Not intended for medical purposes. Consult your healthcare professional for questions about your health.
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