Tells Time Too
In addition to checking your heart rate during exercise, the S410 heart-rate monitor can predict maximum oxygen consumption, calculate calories burned and determine a target heart rate. It also measures altitude and air temperature. Polar, 800-290-6330; www.polarusa.com.
Always wanted an official NFL ball with your name on it? JustBalls.com engraves your name—or the logo of your choice—on a variety of balls. A personalized official NCAA football is $89.95. Other balls range from $14.95 (baseball) to $99.95 ( NFL ball); www.justballs.com.
Serve and Pulley
In the Wilson Rollers 3.6 racket ($279.99), the strings are secured with so-called rollers, which resemble little metal pulleys, allowing the strings more movement. According to Wilson, that creates a stronger trampoline effect and extends the sweet spot from the center of the racket head to the edge. Call Wilson, at 800-946-6060; or go to wilsonsports.com on the Web.