Apple adds blood oxygen sensor to watch

Apple Inc. announced the Apple Watch Series 6 with additional health features and a new low-end model called the Apple Watch SE as it looks to extend its share of the smartwatch market.

The Apple Watch Series 6, starting at $399, looks similar to last year’s models but adds a faster S6 chip and a new sensor for measuring blood oxygen levels. That adds to the heart rate monitor and electrocardiogram sensors from previous generations, showing the company’s growing focus on health technology. The Apple Watch Series 6 also adds new colors, including a blue model, an updated gold finish, a graphite stainless steel option, and a new Product Red version.