I tried pairing my Polar V800 with SailfishX with no luck. Here is what happens. - I open bluetooth from settings - I start pairing from my V800 - V800 tells me to touch the phone, which i do - Phone sees Polar V800 and I select it - Phone says it is now pairing and asks me to write PIN code 00000 on both devices and gives 2 options: cancel or pair - i select pair - V800 does not present any prompt for pair code (nor it should) - Phone says it is now paired - V800 says pairing failed Looks to me like SailfishX does not know NFC.