Should I reset iPhone statistics after transferring data?

When transferring data from an older iPhone to a newer one, the Reset Statistics information, such as call time or cellular data usage, displayed under Settings, is typically not transferred. This is because these statistics are device-specific and are stored exclusively on the iPhone where they were generated. They are intended for your reference and convenience, not for billing purposes.

Your mobile carrier does not rely on the iPhone’s internal statistics to calculate your charges. Instead, they monitor and record usage directly from the SIM card and network activity. Since a SIM card can be utilised in various devices, the carrier aggregates the total usage associated with your SIM across devices. You will be billed based on the carrier’s network records of your SIM’s activity, not on the data displayed on your iPhone’s local statistics.