HUAWEI Band 4 was first launched in China last year for 199 Yuan ($28). Now, the fitness tracker is receiving a new firmware update. It enables the SpO2 sensor present on the device.
The sensor came disabled out of the box. However, the new 5.46MB update bumps up the firmware version to 18.104.22.168 and brings the following changes
HUAWEI Band 4 Firmware v22.214.171.124 changelog:
- Enables SpO2 sensor
- Optimizes user experience
- Optimizes the workout experience
- Optimizes the Alarm feature
- Fixes some display issues
The update is being rolled out in batches.