BPM from Charge 6 off by factor of 256

This week the iPad version of FulGaz offered up my Charge 6 (smartwatch) as a device option. I enabled that connection, and FulGaz reported my HR from my Charge 6.

However, all the HR numbers I saw in FulGaz were in the tens-of-thousands (e.g., 31232, 33256).

I took a bunch of snapshots of the FulGaz BPM and my Charge 6’s BPM, and saw that the ratios were right around 256 (highest 264.38, lowest exactly 256): e.g., screen BPM 40192, Charge 6 HR 157.

This would suggest that there’s some representation misinterpretation (e.g., a value being reported in u8 but being right-padded and then interpreted as a u16).

I don’t know what the exact spec is supposed to be between these things and hence who is at fault, but perhaps FulGaz can at least flag and not report HRs that are obviously absurd, or ideally add a correction when getting values where dividing by 256 yields reasonable HRs.

Thanks for the great product!