Apple's rugged Apple Watch Ultra 2 has the most accurate GP in a sports watch, the brightest display of all Apple products, and a battery life of up to 36 hours for regular use or up to 72 hours in low-power mode. WatchOS 11 brings powerful new features, including insights into training loads and Vistals apps; sleep apnea notifications; the Tides app; new customization options for action buttons; and more. The new black titanium finish of the Apple Watch Ultra 2 is achieved through a custom blasting process. On the grade 5 titanium alloy, a diamond-like carbon physical vapor deposition coating makes it scratch-resistant and durable.