Not effective

In theory would be great but not accurate even when use the different settings you could be driving your car and it will load 200 steps within 10 minutes. Only useful if You stop start session. If using at end of day subtract about 20 per cent of total to be accurate.
Unfortunately the old fashioned pedometer is more accurate.

S N about Pedometer Step Counter & Walk Tracker by Runtastic, v1.4.2