Poor quality! The screen scratches very easily. Scratched after 1 day out of the box. Purchased end of Nov, by March the screen cracked. It was not dropped or mistreated, the crack appeared overnight.
The distance tracking is not reliable. Same distance walked with my exercise partner, Fit 2 recorded 3.2km, Apple watch recorded 4km.
Sleep tracking is also questionable. Did not wear the watch for a day, but it recorded 9hrs of sleep, with different sleep stages!
It is basic fitness tracker and mostly does what it is supposed to, however I expected it to last longer than 3months out of the box. I bought it mainly to track my swimming and with the crack it is no longer waterproof.
Would not recommend the Galaxy fit2, spend the extra money for a more durable product.