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Once you have selected the settings on your mobile device, proceed with the following steps to measure your 

heart rate on the Jarv Advantage HR Smart Watch:

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STEP 1: 

Place 3 fingers above your wrist to determine the point on your 

arm where you will be wearing your watch and measuring your 

heart rate.

 Note: The Optical Sensor uses PPG technology to detect your heart rate 

which senses the rate of blood flow as controlled by the heart’s pumping 

action. To detect the most accurate heart rate the user should wear the 

watch in parts of the body that have a high concentration of blood 

vessels. When detecting heart rate data, for the most accuracy, wear the 

watch at about 3 fingers’ width above the wrist.

STEP 3:

Place the watch on your wrist in the new “3 finger” position 

and adjust the band accordingly. Make sure your Jarv 

Advantage HR is worn as tightly as possible without any 

discomfort.

STEP 4:

Make sure your Jarv Advantage HR is set to Sports Mode

After about ten seconds, you will see your heart rate reading.

If the heart rate reading is too high or too low, please switch 

to a different mode, and then switch back to Sports

mode to scan the heart rate again.

STEP 2:

Please reduce the distance between the two metal fastening 

buttons for optimal fit. For best results, the ideal distance 

between the fastening buttons should be about 2-3 holes.

Jarv Advantage HR Smart Watch + T Heart Rate

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