Function of each button
The function for each button changes depending on which screen is displayed.
Time screen
Operation buttons
Button Operation
Explanation
A
Short press
Starts pulse (heart rate) measurement.*
Long press (two
seconds or more)
Turns the power on or off.
B
Short press
Turns the light on or off. The light turns on for approximately 10
seconds.
Long press (two
seconds or more)
Displays the
Settings
menu.
U
C
Short press
Performs GPS positioning, and displays the measurement screen.
U
“Measurement screen” on page 18
D
Short press
Displays a record of the measurement history (recall screen).
U
Long press (two
seconds or more)
Performs Bluetooth
®
communication. Use this when uploading
measurement data.
*
Measures your pulse (heart rate) when worn on your wrist. Your current heart rate will be displayed on the
watch display, but will not be recorded.
U
“Wearing the device” on page 14
SF-810 User Manual
Preparing and Basic Operations
17