Striiv Fusion Bio 2
Tech specs 
Size13.2 x 1.3 x 0.8 cm
MaterialDurable elastomer
ChargingMicro USB
BatteryRechargeable lithium ion battery.
Battery lifeup to 5 days (up to 30 days with heart rate feature off)
Water-resistanceSweat-proof and splash-proof
Weight136 grams
Sensor3D accelerometer, heart rate sensor
Screen size
ColorsBlack, Red, Denim Blue
Activity tracking 
Calories burnedYes
Heart rateOn-demand and automatic resting heart RATE
Stress & recovery
UV exposure
Skin temperature
Galvanic skin response
Hydration level
Calorie intake
Running features
Swimming features
Other Smartphone music control, vibrating alarms, instant journaling
Non-fitness functions 
Smartphone notificationsCaller ID, text notifications, app notifications
On-board music storage
Connected pay
Affiliate link*Amazon
Read more
*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.