LifeSpan X-25 Owner's Manual page 26

c) The height display will flash, and then press UP, DOWN to set up your height. Press ENTER to
confirm the value. See below:
d) The weight display will flash, and then press UP, DOWN to set up your weight. Press ENTER
to confirm the value. See below:
e) The age display will flash, and then press UP, DOWN to set up your age. Press ENTER to
confirm the value. See below:
X-25
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