Fitbit FB523BKBK Versa 4 Smart Watch Black/Graphite Aluminium

Track more exercises than ever right from your wrist with 40+ exercise modes.

Daily Readiness Score

Optimize your workout with a score that reveals if you’re ready to exercise of should focus on recovery. You’ll get a personalized activity goal for the day, plus recommended workouts or recovery sessions based on your score.

Active Zone Minutes

Earn Active Zone Minutes for time spent in Fat burn, Cardio and Peak heart rate zones and stay accountable during workouts by seeing your efforts add up in real time. The more intense your activity, the more minutes you earn.

Built-in GPS

See your real-time pace & distance without your phone using built-in GPS during outdoor runs, rides, hikes and more, then see a map of your workout route in the Fitbit app.

40+ Exercise Modes

Track more exercises than ever–from strength training and HIIT to running and stand-up paddleboarding–right from Versa 4 and see your stats on your wrist to track your efforts in real time.

24/7 Heart Rate Tracking

With an advanced multipath sensor, Versa 4 delivers PurePulse 2.0–Fitbit’s 24/7 continuous heart rate tracking for exercise, sleep tracking and everything in between.

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.

High & Low Heart Rate Notifications

Your heart rate is a key indicator of health, so stay informed when Versa 4 detects that your heart rate is above or below your threshold.

Notifications & Quick Replies

Get notifications for calls, texts, calendar events and apps–plus send quick replies and voice replies right from your wrist. Available when phone is nearby; quick replies & voice replies on Android only.

Built-in Voice Assistant

Use Amazon Alexa Built-in to get quick news and weather, set bedtime reminders and alarms, control your smart home devices and more–just by speaking to your watch.

6+ Day Battery Life

A day lasts 24 hours. So should your watch. With a 6+ day battery life, Fitbit Versa 4 tracks your morning, night & everything in between without needing to stop for a charge. Varies with use and other factors.

Designed for Fitness

Stay comfortable all day, during workouts, sleep and more with a thin, lightweight design that sits more naturally on the wrist.