Google Improves Heart Rate Tracking in New Pixel Watch 2 and Fitbit Charge 6 with Enhanced AI Algorithms

The Pixel Watch 2 uses AI and ML algorithms to provide more accurate heart rate tracking than the first Pixel Watch.

It has a multi-path LED sensor to cover more area on the wrist compared to the single-path sensor in the first model.

The algorithms analyze the data collected by the sensors and provide insights like the Fitbit Daily Readiness Score.

The same algorithms are also built into the new Fitbit Charge 6.

Google optimized the algorithms to work on the Charge 6's lower-end CPU while maintaining week-long battery life.