My brother has an S20 (I assume that the S12 is a similar device). As he describes things this device senses and records every full shot that he takes. He does not have any club sensors so it does not know what club he is hitting. But if he hits a 4 iron from the middle of the fairway on the 4th hole this shot will get recorded and can be part of the round data that he can upload to Garmin Connect (or whatever). As shots get 'smaller' (chip shots, putts, etc) it becomes less reliable but full shots seem to work pretty darn well as he describes things. AND it does not detect practice swings somehow.
What technology is Garmin using to detect these swings and is it the same technology across the entire Approach line from the S12 up to the S70?
Thanks.
dave