I actually found this teardown even more interesting than the iPhone XS teardown I posted earlier this morning. Mostly, I think, because I have seen so many iPhone teardowns, and relatively few for the Apple Watch.

From the conclusion:

• Watch band replacements remain fast and simple, and are even backward-compatible with previous models.
• Screen replacements are difficult but do-able—it’s the first thing to come off, and detaches via simple ZIF connectors.
• Battery replacements are pretty straightforward, once you’re inside.
• While not proprietary, incredibly tiny tri-point screws are a repair hinderance. And they are all over the place.
• Several component flex cables are mounted directly to the S4 package, requiring skilled microsoldering to replace.
• The resin-encased S4 system makes most board-level repairs impossible.

That third pic in Step 4 is the money shot. Click or tap the image, than click it again or pinch to zoom to really drink in all that detail. Gorgeous.