Or 900 bucks its a fine product .but I found dere r some issues wid band that people gave in review .I like to ans those here
u have to keep ur app running in background to make it connected everywhere .once u close it it got disconnected .for a android user its not so hard to keep it running in background
the sleep time is perfect , only u have to set a intial time and final time.the default final is 8 am so its not checking after that .u can make it upto any time.
about steps n calculation it shows nearly accurate.about numbers mismatch betwn device and phonee. it happens if u syncronise again gain .if u sync it again it will wipe out the previous data from device but it will be in the mobile for life time.
I don’t knw how many days it will work but it is working nicely ,