Pacer is highly inaccurate with step tracking. I used to use pacer, then bought one of the best wristbands on the market, the UP3 Jawbone, and its highly accurate. The difference is huge. Dont waist your time tracking steps that are inaccurate. If youre dedicated to be the best you and healthiest you, get a wristband. Beats the Motion and Fitness built in detectors. By a long shot.