Tech 4 O Men's Accelerator Runner Watch (Amazon Exclusive) Stylish runner's wristwatch with built-in accelerometer for gauging distance Produces highly accurate readings of user's speed, distance, and caloric expenditure Adjustable step counter accounts for walking style, stride, terrain, and pack weight Built-in stopwatch and countdown timer; powerful 7-day, 10-week memory Clock with 12/24-hour time, date, and daily alarm; 1-year warranty