Product Suggestion: Omron HJ-112 Digital Pocket Pedometer

The Omron HJ-112 Pocket Pedometer is an advanced, high-tech pedometer that--thanks to unique dual sensor technology--can be carried in your pocket or bag. Now you can just drop your pedometer in your purse to find out how much exercise you get in a typical day of work, errands, and other tasks. Of course, you can also attach it to your belt like a traditional pedometer.

The HJ-112 accurately measures your steps, as well as aerobic steps and minutes. You can also use it to measure calories burned during your workout, as well as the distance you've traveled.
 
The device's large, easy-to-read LCD display can separately display aerobic steps and minutes walked more than 10 minutes continuously, so you always have the information you need right in front of you. Meanwhile, a seven day history lets you review a full week of exercise. The device also resets at midnight automatically so it's ready to go every morning. Of course, the device can also function as a handy and highly accurate clock. It also comes with a detachable belt holder and security strap so it's always close at hand.
 
The HJ-112 is powered by a replaceable lithium battery (CR2032) that will last six months when used for walking 10,000 steps a day. The device measures approximately 2.8 x 2.1 x .6 inches (H x W x D) and weighs 1.1 ounces (not including battery).

Expect to pay somewhere between $20 and $35 for the HJ-112, depending on where you purchase it. Amazon.com and Walmart.com typically have the lowest prices and the best deals, which often include free shipping.