Galaxy active / galaxy watch has one of the most accurate gps and step counters.

Mi band / honor are quite sampah in terms of accuracy, especially if you move your hands when you talk a lot.

It can easily overcount as much as 10-15%. Whereas samsung counts accurately even if you are walking while carrying heavy loads (so your hands dont move as much, or in fixed position).

I would only say the bad thing about the accuracy is the floors climbed tracker - can be somewhat inaccurate but maybe the floor was not high enough lol.