- There is no reason to trade in any Series 10 watch. Those models will be good for three to four more years. Plus - the reason you bought the titanium and sapphire screen is longevity, so why not keep it for a few more years.
- The best value in terms of Apple Watches is the plain series watches in aluminum (I am excluding the SE, which is even a better value). The main reason is that you can get them for $100 off from Amazon or Best Buy. You are into the watch for $299 or $329 depending on your size. In two or three years, the trade in value will probably be $100. So you basically pay $80 per year for the watch.
- This is actually why I am interested in the Series 11, despite it getting no real upgrades. The upgrade it did get - the supposedly more scratch resistant screen - should increase the longevity of the watch. An aluminum Series 11 at $329 from Amazon is a good entry point.
- This is how many people like me end up with multiple Apple Watches. Instead of trading in your watch, you can just keep it and swap out the watches based on what you need that day. The benefit of this is that all your watches last longer because you don't wear the batteries out.
My AWU1 value is $255. I *may* trade it in depending on the reviews for the AWU3. But I would plan to keep the AWU3 for four years at least.