"Restart" is found on your Bio 2 Plus, under Apps > Settings , and will simply power your Bio 2 Plus off and back on.
"Factory Reset" is found on your Bio 2 Plus, under Apps > Settings , and will delete all the recorded data on your Bio 2 Plus (data already synced to your phone will remain on our servers linked to your account) and restore it to factory settings. Your Bio 2 Plus will display "striiv.com/start and battery % as it did coming out of the retail box. After doing a Factory Reset, you'll have to re-pair your Bio 2 Plus to the Striiv app.
Note: the device will not turn on after a factory reset when unplugged from charge until it's been successfully re-paired.