Watch glass type
Corning Gorilla Glass 3
Connections and interfaces
Headphone connection
Bluetooth
Near field communication (NFC)
Yes
Bluetooth Low Energy (BLE)
Yes
Thickness
17.6 cm, 1.12 cm
Rechargeable battery/battery technology
Lithium Polymer (LiPo)
Rechargeable battery/battery operating time
144 h
Rechargeable battery/battery type
Integrated battery
Mobile network connection
No
Operating temperature
-10 - 45 °C
Virtual assistant
Amazon Alexa
Blood pressure monitor
Yes
Heart rate sensor type
Optical
SMS (short message service)
Yes
Country of origin
United Kingdom
Intelligent notifications
Yes
Also answering machine access
Yes
Stress monitoring function
Yes
Skin temperature sensor
Yes
"Find my phone" function
Yes
Automatic daily activity recording
Yes
Goods tariff number (HS)
8517620000
Market positioning
Smartwatch
Color of the watch case
graphite
Material of the watch case
Aluminum
Name of the color
schwarz / Aluminium-Graphit
Protective function
Waterproof
Minimum belt length
12.9 cm
Maximum belt length
20.9 cm
Magnetic charging connection
Yes
Closure type
Single buckle
Supported mobile operating systems
Android, iOS
Installed operating system
Fitbit OS