My smartwatch indicates “insufficient quality” as heart rhythm feedback

In case your watch indicates “insufficient quality” as heart rhythm result, follow these tips:

Before the measurement: 

• Tighten your device for a good fit - make sure the sensor of your device is in contact with your skin while measuring
• Wear your device as high up on your arm as possible - we advice to wear it 2cm above your wrist bone

During the measurement:

• Try not to move while measuring
• Try not to talk or laugh while measuring