Fitbit Versa 4 40mm Smartwatch, Black/Graphite

The Fitbit Versa 4 is a smartwatch designed for health and activity monitoring, running Fitbit OS and offering compatibility with both Android and iOS. The hardware consists of a 40 mm square aluminium case in a graphite finish, a removable black silicone strap, and an always-on digital touchscreen protected by Gorilla Glass 3. Its primary function is to provide users with detailed wellness metrics and smart notifications in a single wearable device. The chassis is water-resistant up to 50 meters, making it suitable for daily wear and swimming.

For tracking, the device is equipped with GPS, GLONASS, and Galileo for location services. Health monitoring is managed by an optical heart rate sensor, a blood oxygen sensor, and a skin temperature sensor, alongside sleep quality analysis. Smart features are enabled via a Bluetooth 5.0 connection, which facilitates notifications and access to the built-in Amazon Alexa assistant through an integrated microphone and speaker. The internal battery provides up to 144 hours of use on a single two-hour charge and supports NFC for contactless payments.

• Features a 40 mm square aluminium case with a silicone band
• Equipped with an always-on touchscreen with Gorilla Glass 3
• Compatible with both Android and iOS operating systems
• Provides location tracking via GPS, GLONASS, and Galileo
• Monitors heart rate, blood oxygen, and skin temperature
• Includes a gyroscope, altimeter, and accelerometer for motion sensing
• Integrates Amazon Alexa with a built-in microphone and speaker
• Connects via Bluetooth 5.0 and includes NFC for payments
• Delivers up to 144 hours of battery life on a single charge
• Offers water resistance for use in depths up to 50 meters