Not for years: it’s 4 years old and can’t install watchOS 27.
iPhone only: an Apple Watch doesn’t pair with an Android phone.
Before you pay: the seller unpairs the watch from their iPhone in front of you.
What to check before you pay
Five minutes that save you a headache:
Unpaired from the seller’s iPhone, in front of you: Apple Watch app › All Watches › Info › Unpair Apple Watch. Otherwise it stays linked to their Apple Account and won’t pair with your iPhone.
Battery: on the watch, Settings › Battery › Battery Health.
The touchscreen, the Digital Crown, the side button and the sensors on the back.
Where to buy it
There’s no Apple Watch S8 for sale on Damjitech right now.