Its been 2 years since I’ve had wearing my fitbit and i must say its very Now I’ve got the Flex 2 fitbit, only thing it’s different is there no time display or heart rate.  
apart from that it does every thing it else. 
For me I’m happy with because I’m sight loss so not having aaaaaathe time display is okimressive because there so many fetures and there so many different fitbit out there to suit your needs