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The iPhone 16 Pro and AA Battery are most easily told apart by their overall size. On height, the iPhone 16 Pro measures 149.6 mm against the AA Battery's 50.5 mm — about 99.1 mm more. On width, the iPhone 16 Pro measures 71.5 mm against the AA Battery's 14.5 mm — about 57.0 mm more. On thickness, the AA Battery measures 14.5 mm against the iPhone 16 Pro's 8.3 mm — about 6.3 mm more.
The iPhone 16 Pro is the heavier of the two at 199 g, compared with 23 g for the AA Battery. That is a 176 g difference (765%). In daily handling the difference is easy to feel.
Fits comfortably in most front pockets.
Most of the screen is reachable, shifting grip needed for corners.
| Metric | iPhone 16 Pro | AA Battery | Diff |
|---|---|---|---|
| Width | 71.5 mm | 14.5 mm | +57.0 mm |
| Height | 149.6 mm | 50.5 mm | +99.1 mm |
| Depth | 8.3 mm | 14.5 mm | -6.3 mm |
| Weight | 199 g | 23 g | +176.0 mm |