Garmin Vivosmart
Tech specs 
SizeBand sizes: 127-172 mm (small); 155-221 mm (large)
MaterialN/A
ChargingUSB
BatteryLithium battery
Battery lifeUp to 7 days
Water-resistanceUp to 50 metres (5 ATM)
Weight19.0 grams (large); 18.7 grams (small)
Sensor3 axis-accelerometer
Display128 x 16 pixels; Touchscreen OLED (illuminated) display
Screen size1.35" x 0.14" (34.4 mm x 3.5 mm)
ColorsBlack, Purple, Berry, Blue, Slate
Other
Activity tracking 
StepsYes
DistanceYes
CaloriesYes
ActivityYes
Floors
SleepYes
Heart rate
Vo2Max
Stress & recovery
UV exposure
Skin temperature
Galvanic skin response
Hydration level
Calorie intake
GPS
Running features
Swimming features
Other Clock
Non-fitness functions 
Smartphone notifications
On-board music storage
Connected pay
Links 
Affiliate link*Amazon | Garmin | eBay
Read moreReview
*Disclosure: We are a professional review site that receives a small commission from sales of certain items, but the price is the same for you. See our affiliate disclosure page for more details.
**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.