The Apple Watch Series 7 earns a 6 out of 10 on our repairability scale (10 is the easiest to repair):

Opening the Watch is difficult, but possible with heat and suction.

Display and battery replacements are relatively straightforward once the Watch is open.

Tiny tri-point screws throughout the Watch can be tricky to remove and keep track of.

Several important flex cables are mounted directly to the S7 package, requiring skilled microsoldering to replace if they are torn.