Ticwatch 2 helps you beat your previous times and track your acheivements, all without a phone. Track various activities, set your workout goals, and start. Fitness watchface displays your current health information like heart rate, steps, calories burnt, and many more. Ticwatch 2 saves the activity to your phone and syncs it to Google Fit, Strava, and Runkeeper! More here.
I like the subtlety of the design.