A:AnswerI'm not sure about the TizenOS but would suggest with Best Buy as I find they are very knowledgeable but never put pressure on you to purchase from them. Sorry I couldn't be of more help.
A:AnswerIt does track your sleep. . . .SOMETIMES. The sensors are NOT very accurate. Pictures show that for an entire week, the watch sensed I slept for only 1 hr and 25 mins which is obviously impossible. Im hoping an update will come out to fix this inaccuracy.
A:AnswerI actually do not like the gold watch and I am a female. I prefer the black watch. I will change the bands to what I like. The gold watch looks kind of cheapest to me.