Fitbit Versa 4 Smartwatch – Graphite (FB523BKBK-US)

The Fitbit Versa 4 in sleek Graphite (Model FB523BKBK-US) is a lightweight and powerful fitness smartwatch designed to help you stay on top of your health and goals. With built-in GPS, 24/7 heart rate tracking, over 40+ exercise modes, and up to 6+ days of battery life, Versa 4 keeps you connected and motivated whether you’re at the gym, at work, or on the go.

Key Features

• Built-In GPS: Track your pace and distance during outdoor runs, rides, and walks without needing your phone.

• Daily Readiness Score (with Premium): See if you’re ready to work out or need recovery based on activity, heart rate variability, and sleep.

• Active Zone Minutes: Alerts you when you’re in your personalized heart rate zones for efficient workouts.

• 24/7 Heart Rate Monitoring: Real-time insights during exercise and rest.

• 40+ Exercise Modes: Track a wide range of workouts including HIIT, strength training, biking, and yoga.

• Google Apps Integration: Includes Google Maps and Google Wallet support.

• Smart Notifications: Receive call, text, calendar, and app alerts when your phone is nearby.

• Voice Assistant: Use Google Assistant or Amazon Alexa to set reminders, control smart devices, and more.

• Sleep Tracking: Get a Sleep Score and insights into your sleep stages.

• Water Resistant: Up to 50 meters—wear it in the pool or shower.

• Long Battery Life: Up to 6+ days depending on usage.

Product Specifications

• Display:

  • Type: Color AMOLED touchscreen

  • Size: ~1.58″

  • Always-On Display mode supported

• Case Material: Aluminum

• Color: Graphite (case and band)

• Band: Infinity band (small and large sizes included)

• Water Resistance: 5 ATM (50 meters)

• Sensors:

  • Optical heart rate sensor

  • Accelerometer, gyroscope, altimeter

  • SpO2 (passive during sleep)

  • Temperature sensor (skin temperature trends with Premium)

• Battery Life:

  • Up to 6+ days

  • Fast charging: 1 day of battery in 12 minutes

• Connectivity:

  • Bluetooth

  • Wi-Fi

  • GPS + GLONASS

• Compatibility:

  • Works with iOS 15+ and Android 9+

• Dimensions: 40.5 x 40.5 x 11.2 mm

• Weight:  37g (1.3 oz)

• Operating System: Fitbit OS (with Google integration)

• Model Number: FB523BKBK-US

What’s in the Box

• Fitbit Versa 4 Smartwatch – Graphite (FB523BKBK-US)

• Small and Large Infinity Bands

• Charging Cable