Apple Inc. this week released the Apple Watch Series 6 and Apple Watch SE.

The Apple Watch Series 6 includes a new S6 chipset that runs up to 20 percent faster, a Blood Oxygen Sensor to measure bloody oxygen, Always-On Altimeter to measure elevation, 2.5 times brighter Always-On Retina display, and 18-hour battery life.

New bands styles include the Solo Loop in soft silicone or braided yarn. Apple Watch Nike will include new colors for the Nike Sport Band and Nike Sport Loop. The Apple Watch Hermès will offer the new Hermès Attelage Single Tour, Attelage Double Tour Bands, and new Hermès Circulaire watch face.

Finally, the Apple Watch Series 6 includes new watch face options including Stripes, Chronograph Pro, GMT, and Artist. In addition, new health and fitness features include VO2 Max, sleep tracking, automatic handwashing detection, and new workout types.

Apple Watch Series 6 starts at $329.

The Apple Watch SE includes a 30 percent larger Retina display and the S5 chipset two times faster compared to the Series 3.

In addition, it includes the latest microphone, speakerphone, and Bluetooth 5.0 for phone cals, Siri, and Walkie-Talkie functionality.

Additonal features include the always-on altimeter and Emergency SOS fall detection.

The Apple Watch SE (GPS) is sold at $279. The (GPS + Cellular) SKU is sold at $329.