Fitbit Versa 4

Fitbit Versa 4

Classic band (small & large)

Charging cable

Multi-path optical heart rate sensor

Red and infrared sensors for oxygen saturation (SpO2) monitoring

Altimeter

3-axis accelerometer

Ambient light sensor

NFC

Built-in GPS + GLONASS

Vibration motor

Speaker (75dB SPL @10cm)

Microphone

WiFi (deactivated, cannot be turned on)

Battery life of 6+ days. Battery life and charge cycles vary with use, settings and other factors; actual results will vary. We recommend charging your tracker every few days to ensure you are always tracking.

Battery type: Lithium-polymer

Charge time (0-100%): Two hours

Radio transceiver: Bluetooth® 5.0

Saves 7 days of detailed motion data, minute by minute

Saves daily totals for the last 30 days

Stores heart rate data at one-second intervals during exercise tracking and at five-second intervals all other times

Water resistant to 50m. After getting the band wet, we recommend drying the band because, as with any wearable device, it's best for your skin if the band is clean and dry.

This watch includes a band made of a flexible material similar to that used in many sports watches, as well as an aluminum watch case and buckle.

Like all heart rate tracking technologies, accuracy is affected by physiology, location of device and different movements.

Operating temperature: -14° to 113°F

Google account will be required. The Fitbit app is compatible with most popular phones. To set up and use your Fitbit products and services, you must install the Fitbit app on a compatible device running one of the following operating systems:

Apple iOS 13.3 or higher.

Android OS 8 or higher. 

Syncing range: Up to 30ft.

Certain features like smartphone notifications may require Android 8+. 

Syncing requires Bluetooth® LE, an internet connection and location permissions granted on the phone.

Both small and large sizes included in box.

Small: Fits wrist 5.5" - 7.1" in circumference

Large: Fits wrist 7.1" - 8.7" in circumference

1.5" l x 1.5" w x 0.45" h