Pretty out of the box. I've had it 2 weeks and As I expected its starting to yellow. The heart rate function is RIDICULOUSLY frustrating! So the act of getting it to work to take your heart rate INCREASES your heart rate because its frustrating you. It works as a digital watch which you know should be cheaper than 99$ tracks calories, miles, steps activity time and pace which seem accurate, not much help if it gives me a jammer checking heart rate! not recommended at this price. Sadly. But I'm going to wear mine anyway.