Digi 1st P-210,310,510 Pedometers are simple step counter featuring activity timer and dual memory storage which records the value of daily and cumulative steps separately. They record number of steps taken to 999,999 steps and time spent on exercising. Three different models respectively feature 30% larger LCD display, thinner ultra slim case, and popular classic design. The 5 steps movement sensor filters out irregular results to help achieve highest accuracy. Power saving mode activates automatically after 4 minutes of inactivity. No set up process required, just clip on with durable belt clip and go. A free safety leash is included. The enhanced activity monitor functions and affordable price make these pedometers the best choice for walking/fitness programs.