I bought this based off reviews & having experience with the fitbit you can swim with. To be honest.. I like the look & feel of the Biostrap I was just disappointed with the rate of syncing to the app.. because this doesn't have a front face on the wristband itself, you rely on looking at the app. Mine takes about an hour each time I sync my Biometrics & then it never gets my oxygen reading.. no matter how still I am or dark the room is.. I've even put a towel over during the reading & it doesn't work out! I sadly would like to return it because its not an efficient tool for my Fitness Coach Business! Maybe it's me being on an island with shotty internet connections all over the place, if it synced & gave me the readings I wanted I would totally recommend this strap!