Guides

Apple hardware guides.

Straight answers to common Apple hardware questions — what the identifiers mean, what the built-in screens report, and where diagnostics tools add context.

Guide · Battery health

How to check iPhone battery health

What the built-in Battery Health screen reports, what it leaves out, and how to tell when a battery is due for replacement.

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Guide · Device identification

How to identify your exact iPhone model

Model names hide the details that matter. Here is how to pin down an iPhone's identifier, model number, and full hardware tree.

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