A cousin from the United States is going to sell me a 128GB iPhone 12 Pro for 230 USD, the battery has been changed but the cell phone in repairs is branded as second-hand, it cost him 80 USD, I don't know what quality it is, I want this cell phone as a secondary cell phone since I have an S24 Ultra as a primary cell phone and I want something to start iOS and see if I really like it without risking changing my main cell phone, is it still a good option in 2025? That it lasts about 5 to 6 hours of SOT would be enough as a secondary cell phone in my opinion but I don't know how good that battery is, it went from 41 to 37 after a good while of use but it stayed stuck at 41 for a while and then went down to 37, it seems that it is out of calibration so I don't know if I should calibrate it since it only sent it to me after changing it, suggestions?