Apple rates the iPhone 18 Pro Max at up to 45 hours of video playback and, in the same release, describes it as offering up to 30 hours of use on a full charge. The two numbers measure different things, and the second one is closer to what most owners will see.
The smaller iPhone 18 Pro is rated at up to 36 hours of video playback, which Apple says roughly matches last year’s iPhone 17 Pro Max. That puts the new Pro Max nine hours ahead of the 18 Pro on the same test, and roughly nine hours beyond where last year’s largest iPhone landed. Our announcement coverage has the full spec list.
What video playback actually measures
Apple has not detailed the test conditions in the release, but video playback ratings are typically measured with locally stored video and the screen on, with nothing else running. There is no cellular data, no app switching, no camera use and no GPS in that scenario.
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That makes 45 hours a best case for one kind of task rather than a forecast for a working day. It is useful for comparing one iPhone to another, since Apple applies the same test across the range, but it is not the number to plan a trip around.
Why Apple also says 30 hours of use
The 30-hour figure is Apple’s own translation of the battery into mixed use, and it is the number to hold against your own habits. Apple has not said what mix of tasks it assumes, so treat it as a guide rather than a guarantee.
| Model | Video playback (Apple rating) | Apple’s mixed-use figure |
|---|---|---|
| iPhone 18 Pro (6.3-inch) | Up to 36 hours | Not given |
| iPhone 18 Pro Max (6.9-inch) | Up to 45 hours | Up to 30 hours |
Apple gave a mixed-use figure only for the Pro Max. For the 18 Pro, the closest reference point is Apple’s statement that it roughly matches the 17 Pro Max.
The eSIM-only footnote
Both playback figures apply to the eSIM-only model, which is the version sold in the US, Canada, Japan, Mexico and eight other countries and regions. Apple has not published separate figures for models with a SIM tray, so buyers elsewhere should expect a slightly different rating once Apple’s local spec pages appear.
Charging covers the shortfall
Apple says five minutes on a cable gives the Pro Max about seven hours of video playback, and either phone reaches 50 percent in about 15 minutes wired or 30 minutes wireless. Apple has not said which charger those figures assume.
Pre-orders open Saturday, September 12, at 5 a.m. PT, with availability on Friday, September 18. See our pre-order guide and the event live blog for updates.
