So I have been looking up Galaxy fit3 and even ordered one. But then I went to the subreddit for galaxy fit and every 3rd 4th post is people complaining about it failing to sync all data and some even said it lost sleep tracking accuracy in 2 months. 
i canceled the order
Some reviews mention fitbit fails physically very often, people often having to claim warranty multiple times. Assuming no warranty in India, fitbit goes out the window too 