You didn't check well enough given they're brand new for under £30 on eBay ;)
hmz...I did a quick check and cheapest new one with everything was around 100 (not counting new (other)) So consider this very cheap....at least for the purpose if you want to take a first step in world of smart watches and realize what you need....
I'd buy it new with warranty this is grade b meaning used and scratched with general wear and tear. It's not worth buying this over spending £13 more for brand new with charger
Good luck with wireless charging ;)