visceral fat different from the one computed by xiaomi app

[alinelena]

i really do not know where the formulae come from for this but the numbers are different between xiaomi app and what is computed in python for me for example app gives 13 and the ha component 17.

this is odd since all the rest are more or less the same

[alinelena]

happy to look into it if the re process is described somewhere

[dckiller51]

file retrieval from the net.

[alinelena]

do you have a source for that? I can look into it and check the formulae. practically this and body score seem to be the only ones which are off compared with the scale...

[dckiller51]

Source example source 1 https://github.com/lolouk44/xiaomi_mi_scale/tree/master/src

source 2 https://github.com/oliexdev/openScale problem https://github.com/oliexdev/openScale/issues/597 interesting information https://github.com/oliexdev/openScale/issues/412

One should look at the latest mifit apk and search libBodyfat.so

I watch tonight on my way home

[alinelena]

thanks I think I may get it what is wrong, I will go through the code and try to fix it...

[alinelena]

ok so I looked into this https://github.com/oliexdev/openScale/blob/master/android_app/app/src/main/java/com/health/openscale/core/bluetooth/lib/MiScaleLib.java

and seems to have implemented the same formula, I suspect openscale will have the same issue.

[dckiller51]

Another calculation here

https://github.com/oliexdev/openScale/blob/2935191e05d5faa12c353094385aaebf7dc7395e/android_app/app/src/main/java/com/health/openscale/core/bluetooth/lib/YunmaiLib.java#L118

[alinelena]

personally I think these numbers tend to be gibberish but if we want them to match the scales we need to match the the mi fit app... I extracted the apk yesterday but formulae are a little bit too much I never did for java stuff.

[FredFreegroup]

Found huge difference between yours and MIScale data weight 56.7 kg impedance 607 height 162 cm born year 1967 female

visceral_fat Mi - 6.0 sensor.xxxx_visceral_fat 1

and few other differences

body_fat 27.73 29.2

muscle 38.9 38.03

moisture 49.58 50.5

score 83 91

metabolic age 42 40

protein 19.02 16.5

[adolfonovo]

Yeah, me too, for example the metabolic age. There is no change and very diferrent from the app . Also, the real age shows "Not Avilable"

[menloperk]

I got here since integration is not working anymore since last update to 2023.7.0 but other long standing problem is that the value for 'Visceral fat' just can't be right. This has been bugging me for quite a while. For me it reads 20 or 21 which just can't be right at all. I had been trying to Google some time ago to see if Xiaomi had a different definition but I now suspect there is something wrong with the calculations done in this integration.

[dckiller51]

update v3.1.2