I use a cheap, lower end Fitbit. I like the cheap one because it's low profile, the screen is nice and small.
I do use it for time constantly but the other features are nice too. I can read, but not reply, to texts. I'm notified of an incoming call. I do use the step counter and hourly activity reminders to make sure I move enough at my sedentary job. The stopwatch feature is great for in-between sets at the gym. I like knowing my heart rate too when I'm working out.