Here’s iPhone 17 Pro Max Vs iPhone 18 Pro Max Vs iPhone Duo battery life comparison.
Apple today announced the iPhone 18 Pro, a replacement for the now-discontinued iPhone 17 Pro. Now, a new report has compared the battery life of the two while throwing in the brand-new iPhone Duo for good measure.

Apple announced its new iPhones during a streamed event earlier today, pointing out the battery technology in the iPhone 18 Pro and iPhone Duo as key features.
The new physical battery designs and energy efficiency of the new A20 Pro are key to the battery life gains.
Apple says the iPhone 18 Pro can run for up to 33 hours when streaming video, a 10% boost over the 30 hours of the iPhone 17 Pro. The iPhone 18 Pro Max manages an even more impressive 14% improvement when compared to the iPhone 17 Pro Max.
Apple has also sought to give new iPhone buyers a better indicator of what they can expect during everyday use.
The iPhone 18 Pro will reportedly run for 24 hours on a single charge using this new benchmark, while the Pro Max stretches that to 30 hours.
As for the iPhone Duo, Apple says that users can expect 26 hours of battery life when streaming video to the inner display. That increases to 37 hours when using the smaller outer display. However, we’ll need to see real-world use figures for all of these new iPhones to get a real feeling for their battery life. The iPhone 18 Pro and Pro Max go on sale later this month, while the iPhone Duo hits stores in late-October.
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