I went to JB Hi-Fi Prahram looking for a scale body scanner weight scale in the list of "accesories" of my Samsung (to get a compatible one) and I asked one of the staff members and he went... -Sorry mate we only have the ones that you can see over there- and He pointed out.... Well I'll go to big w then, I thought, but after that I stopped in the gopro zone, just having a look then this guy appeared, his name is Nuwan, this guy is one of the best sellers that I've met, he asked me if I was interested on one of the gopro then he explained to me the differences between each of them, the relation of price/features... So yes I ended up buying a gopro with all accessories and at the end I asked same question to this guy, about the body scanner device...He went -Sr let me check first we don't sell any of the options that you're showing me, but are you sure they are the only ones compatibles to Samsung health? Let me check-... So Nuwan checked and found that there were more devices and some of them were part of the stock in the store....So I ended up buying the device. I Just want to say that this kind of seller make the stores and business to keep growing! If any of you are unsure to buy something or need some advice about anything, go and visit this guy Nuwan at Prahram, he will give you the enough information and you'll feel happy with your purchase as I am right now.