As is the nature of a refurbished item, devices may go through repairs to ensure that it works as intended. These repairs may use components from other manufacturers or other same-model phones.
Please rest assured that our vendor's certified technicians only use high-quality parts to repair the device. The functionality of the phone will not be impacted by the replacement parts.
This may also prompt some messages on the latest Apple devices stating "Unable to verify this iPhone has a genuine...". This message will be visible on the lock screen for 4 days and then for 15 more days in Settings. It's essential to note that the seeing the message doesn't imply that there is a issue with the related component, it simply indicates that the component was replaced with one that works as efficiently as the original.
The one inconvenience we are aware of is that you won't be able to see your battery's health easily. In this case, we recommend monitoring the battery usage information.
As you may know, only an Apple Genius Bar or an Apple Authorized Service Provider can replace a component in the latest iPhones without prompting these messages.