Amazing!😊First thing I did when I got the device I ran it through a diagnostic & it passed on everything!✅ Last bit of the review explains how to do the diagnostic📱Anyways would a million percent recommend. The battery health which was 92% is fine with me even with heavy gaming… A battery is actually cheap to replace from an authorised Apple store that is (Genuine parts), also this refurbished phone has all the genuine parts not a single red flag on any of my diagnostic, so I know that the battery is the actual stainless steel shell one which is crucial for the performance….👍NOTE to do a built in diagnostic test you need to power off your device fully, wait 3 seconds, press volume up and volume down BUT as soon as you press those volume buttons at the same time together you need to plug the charger in at the exact same time, once you see the apple logo, LET GO of the volume up and down buttons, your device will then go into diagnostic mode… ⭐️5/5 Hugely recommend, running Fortnite medium graphics, locked at 60, even hitman 3 aka world of assassination, which is a series S/X game btw 🎮 not just that sniper elite 4 runs at a locked 60fps on this device, hitman absolution locked at 60fps, the list truly does go on… It’s a powerhouse, ultimate beast of a mobile ❤️all games mentioned are in App Store btw…