Apple Watch Series 9 - 2x brighter display, with a second-generation Ultra Wideband chip enabling new integration with HomePod and with Precision Finding can now direct you to your iPhone by showing you its approximate distance and direction. The front crystal, robust geometry, and flat base make Apple Watch resistant to cracking. And it’s water resistant 50 meters. Battery life up to 18 hours (36 hours on low power mode) and is available with cellular connectivity.