Invi bracelet
Tech specs 
SizeBead | length, 34mm, diameter, 7mm. Band | diameter, 5mm.
S/M ranges from 15 to 18.5 cm (5.9 to 7.3 inches)
L/XL ranges from 19 to 22 cm (7.5 to 8.7 inches)
MaterialStainless steal and tough Italian leather.
Charging
Battery
Battery life
Water-resistanceFor bracelets with a leather band it is advised to avoid contact with water.
Weight
Sensor
Display
Screen size
ColorsThe leather band is currently available in dark brown. The bead and the lock have a matt silver finishing.
Other
Activity tracking 
Steps
Distance
Calories burned
Activity
Floors
Sleep
Heart rate
Vo2Max
Stress & recovery
UV exposure
Skin temperature
Galvanic skin response
Hydration level
Calorie intake
GPS
Running features
Swimming features
Other The Invi Bracelet offers a nonviolent form of self-defense. Inspired by nature, this bracelet can be activated whenever needed and a foul smell is released.
Non-fitness functions 
Smartphone notifications
On-board music storage
Connected pay
Links 
Affiliate link*Invi
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**All tech specs and images on this page come from manufacturers. These may change over time as manufacturers sometimes update their devices. While we cannot guarantee absolute accuracy of information on this page, we promise to review this content regularly and do our best to bring you the most up-to-date information. To be absolutely sure of tech specs of a particular device, we recommend checking the manufacturer’s website.