: Older units often have degraded batteries. According to Apple Support , you should check Settings > Battery > Battery Health ; a capacity below 80% typically indicates a need for replacement.
Buying an today is only recommended for specific, non-primary uses like a backup device, a dedicated music player, or a basic secondary phone. Because it was released in 2014 and is no longer supported by modern iOS updates—staying locked to iOS 12 —it lacks critical security patches and compatibility with many modern apps. Key Considerations Before Buying buy old iphone 6
: Ensure the previous owner has signed out of iCloud and disabled Find My . If the "Activation Lock" or "iPhone Locked to Owner" screen appears, do not purchase the device. Hardware Inspection : : Older units often have degraded batteries
: Test the Home button, volume, and Sleep/Wake buttons for responsiveness. Because it was released in 2014 and is
: Move an app icon across the entire screen to check for dead zones or touch responsiveness issues. If you want to buy a preowned iPhone - Apple Support