Is this iPhone 11 Pro Max deal a win or a loss

Found a deal for an iPhone 11 Pro Max 256GB, BH 76%, China variant with only the box for under 30k. I m using a Pixel 6 as my main phone.

Thinking of grabbing it as a secondary camera, or just to have both ecosystems.

Win or lose deal? Would love your thoughts.

Also might need to change the battery though, how much it will cost?