In this article, you’ll learn about the sensors built into NOWATCH X and NOWATCH B, what each one measures, and how they support your health metrics.
NOWATCH sensors at a glance
Sensors |
NOWATCH X |
NOWATCH B |
|---|---|---|
| Proximity Sensor | Yes | Yes |
| Pedometer | Yes | Yes |
| 3-Axis Accelerometer | Yes | Yes |
| Photoplethysmogram (PPG) | Yes | Yes |
| Bio-Impedance (BioZ) | Yes | Yes |
| Gyroscope | No | Yes |
| Temperature | Yes | Yes |
NOWATCH sensors explained
NOWATCH is equipped with advanced sensors designed to continuously capture your physiological data and support your daily insights.
Proximity Sensor
Detects whether the device is being worn by sensing contact with your skin. This signals when other sensors should activate or pause data collection.
Pedometer
Tracks your daily steps and overall movement patterns to help you monitor activity levels.
3-Axis Accelerometer
Measures movement across three directions to understand motion and intensity:
X-axis: side to side
Y-axis: forward and backward
Z-axis: up and down
This sensor supports Motion tracking and activity detection (such as walking or running).
Photoplethysmogram (PPG)
Uses green, red, and ambient light to measure changes in blood flow by analyzing light absorption through the skin.
Enables tracking of:
Heart Rate (HR)
Heart Rate Variability (HRV)
Breathing Rate
SpO₂ (blood oxygen levels)
Bio-Impedance (BioZ)
Measures electrical conductance between electrodes on your skin to gain insights into physiological processes.
Used to derive bio-conductance metrics.
Ongoing development supports expanded health insights.
Visible as metal plates on the underside of the watch.
Temperature
Measures skin temperature and helps enhance stress-related metrics. You can view this data in the Overview screen.
Gyroscope (NOWATCH B only)
Measures rotational movement and orientation, improving the accuracy of activity tracking.
Comments
0 comments
Please sign in to leave a comment.