Price is the major difference between these two great smart watches and price is the one of important factors that can help you to make a decision. Apple Watch Series 8 costs start at $399 which is a pretty fair price to ask for because the functions, features and strong metal quality can be considered as the reason to ask this price. You can pre order your Apple Watch Series 8 as the booking has been started. Apple Watch Ultra costs $799 and the difference is in configuration. The other difference is the metal body, look design and the watch faces which will tell you the difference between both of these watches. Both of the watches are available for preorder and you must order in advance in order to restrict yourself from the waiting queue.