Any difference in accuracy between 6 pro and 6s pro?

Hi guys,

I am having both the 6s and 6 pro at home currently to test and see which model I want to keep.

On this forum I see some threads regarding accuracy issues with some users’ 6 pro models, but I hardly see 6s pro mentioned here.

Is therd some correlation here where its perhaps known that the 6 pro models are less accurate in their readings? Or that otherwise the 6s models have been known to be more accurate at least?

The longer battery life and slightly larger screen of the 6 pro are nice advantages, but I also like the slightly sleeker look of the 6s, so I’d like to make my choice more on technical basis than looks.

They both fit well on my wrist.