Thank you for posting this Barb. I want to buy a new pedometer (I had one my mother gave me but it died).
I found this info:
Before You Buy a Pedometer
A pedometer senses your body motion and counts your footsteps. This count is converted into distance by knowing the length of your usual stride. Wearing a pedometer and recording your daily steps and distance is a great motivating tool. You can wear a pedometer all day, every day and record total steps. Or you can wear it just when you go out for a walking workout.
The Wear Factor
A pedometer should be comfortable to wear all day and be held securely by its clip, an extra safety leash is almost required. The display should be easy to read without removing the unit from your waistband. It should be protected so that bumps don't punch a button and reset the count. It should easy and intuitive to move between functions. The unit should be accurate in its count when you wear it correctly, and within 10% for distance when you set your average stride.
Simple Step/Distance Counters
The simplest pedometers only count your steps and display steps and/or distance. This is generally all that you need to track to keep yourself motivated. Set a goal of distance or steps for each day. The recommended number of steps is 6000 for health, 10,000 for weight loss when you count all steps during the day. For weight loss, an uninterrupted walk each day of 4000-6000 steps is recommended.
Multi-function Pedometers
Features abound. The top features are:
Calorie estimate
Clocks, timers, stopwatches and speed estimators
7-day memory
Pulse rate readers
Top Pedometers
Pedometer Walking Programs
Keeping records of your steps and/or distance can keep you on track. You can record your daily totals in any log, or get your pedometer and log through one of the pedometer walking programs offered.
Top Pedometer Walking Programs
Walking Speedometers/Odometers
Timex has debuted a true speedometer/odometer that tracks your speed and distance continuously using GPS. Meanwhile, Nike and FitSense use speed detectors based on your average stride to display continuous speed and distance - but with less accuracy.
Then I found this:
http://walking.about.com/cs/measure/tp/pedometer.htm?PM=ss03_walking
I'm going to go read and see which one to buy.