To improve Sleep Tracking accuracy, make sure Wrist Detection is enabled, set up a Sleep Schedule, adjust the watch strap, and turn on Wind Down before bedtime. Apple Watch is arguably one of the best smartwatches around and hands-down the best companion to an iPhone. It excels in so many ways, tracking activities and vitals, offering access to apps, and more. Apple wasn't initially known for the best sleep ... [3508 chars]