October Prime Day could be a great time to buy a wishlist item you've been putting off, or get your holiday shopping done early. Also: The best smartwatches we've testedI'm rounding up some of the more attractive smartwatch and fitness tracker deals on sale ahead of and during the October Prime Day event. Best early Prime Day smartwatch and fitness tracker dealsSamsung Galaxy Ring for $300 Save $100 Jason Hiner/ZDNET Current price: $300Original price: $400 Looking for an Android-compatible smart ring that will track your steps, stress, and sleep? Prime Big Deals Day takes place from October 7 through October 8 this year. How did we choose these Prime Day deals?