The Soleus GPS One Digital Running Watch gets you one more mile in, set one more PR and take one more run. One button push gets you started on your run. 8 hours of GPS battery life and a low profile case design for comfort keep you focused on getting in the miles. Track your distance, pace, speed, and recharge for your next run or marathon! Auto lap will automatically record laps based on your distance. Track the calories you are burning during your workouts. An enhanced setting of the EL Backlight that allows easier or automatic activation of the light while you're running at night.