iPhone Air vs. iPhone 17 Pro Max Battery Life Compared in New Test

Tom's Guide this week published the results of its iPhone Air vs. iPhone 17 vs. iPhone 17 Pro vs. iPhone 17 Pro Max battery life test, which involves continuous web browsing over 5G. Each model was set to 150 nits of display brightness.

iPhone 17 vs Air and Pros Feature
Here is how long each iPhone model lasted on a full charge:

  • iPhone Air: 12 hours and 2 minutes
  • iPhone 17: 12 hours and 47 minutes
  • iPhone 17 Pro: 15 hours and 32 minutes
  • iPhone 17 Pro Max: 17 hours and 54 minutes

For this specific usage, the highest-end iPhone 17 Pro Max lasted 48.5% (nearly 1.5×) longer than the ultra-thin iPhone Air.

The results are similar to Apple's figures, which show the Pro Max offering up to 44.5% longer battery life than the Air for offline video playback.

Here are Apple's offline video playback figures for each model:

  • iPhone Air: Up to 27 hours
  • iPhone 17: Up to 30 hours
  • iPhone 17 Pro: Up to 33 hours
  • iPhone 17 Pro Max: Up to 39 hours

Of course, most people are not using their iPhones to browse the web or watch videos for an entire day or two nonstop, without using the device for any other purpose. So, these battery life tests do not reflect typical real-world usage. Still, they help to set expectations, and plenty of additional tests will follow over the coming days.

All of the new iPhone models launch this Friday.

Related Roundups: iPhone 17 Pro, iPhone Air
Related Forum: iPhone

Popular Stories

ios 26 1 slide to stop

iOS 26.1 Brings Back 2007 Feature in New Way

Friday October 31, 2025 1:40 pm PDT by
The upcoming iOS 26.1 update includes a small but helpful change for iPhones, and it could prevent you from running late to something important. Specifically, when an alarm goes off in the Clock app, there is a new "slide to stop" control on the screen for turning off the alarm. On previous iOS 26 versions, there is simply a large "stop" button, which could be accidentally tapped. The new ...
Apple Logo Spotlight

Report: Apple to Launch These New Products in 2026

Sunday November 2, 2025 5:34 am PST by
Apple is planning to launch at least 15 new products in 2026, according to Bloomberg's Mark Gurman. Gurman outlined what to expect from Apple in 2026 in the latest edition of his "Power On" newsletter. He said the company is heading "into one of its most pivotal years in recent memory," with the rollout of major new Apple Intelligence features, intense regulatory pressure on the App Store,...
Apple Intelligence General Feature 2

New Version of Siri to 'Lean' on Google Gemini

Sunday November 2, 2025 6:06 am PST by
In his "Power On" newsletter, Bloomberg's Mark Gurman today provided an update on the status of Apple Intelligence and the plans for it in 2026. Apple is still planning to roll out its revamped version of Siri around March of next year. The release should be accompanied by the release of a new smart home display product with speaker-base and wall-mount options. A new Apple TV and HomePod...
M5 MacBook Pro

Waiting for New Macs? Apple Just Shared Bad News

Friday October 31, 2025 7:32 am PDT by
Apple has just given a strong indication that it will not be releasing any additional new Macs for the remainder of the year. Apple's CFO Kevan Parekh dropped the hint during the company's earnings call on Thursday:On Mac, keep in mind, we expect to face a very difficult compare against the M4 MacBook Pro, Mac mini, and iMac launches in the year-ago quarter.Parekh essentially gave a heads up ...
Apple Foldable Thumb

iPhone Fold: Launch, Pricing, and What to Expect From Apple's Foldable

Friday October 31, 2025 8:52 am PDT by
Apple is expected to launch a new foldable iPhone next year, based on multiple rumors and credible sources. The long-awaited device has been rumored for years now, but signs increasingly suggest that 2026 could indeed be the year that Apple releases its first foldable device. Below, we've collated an updated set of key details that have been leaked about Apple's foldable iPhone so far. Ove...
HomePod mini and Apple TV

New Apple TV and HomePod Mini Likely Launching Soon

Sunday November 2, 2025 5:49 am PST by
A new Apple TV and HomePod mini could launch as soon as this month, Bloomberg's Mark Gurman today suggested. In today's "Power On" newsletter, Gurman said that Apple retail stores are planning an overnight refresh on the evening of November 11, where changes will be made after closing, such as refreshing displays and placing new products for the following day. The timing of the overnight...
Coffee Burgundy and Purple iPhone 18 Pro Mock 1

Leaker Outlines Potential New Colors for iPhone 18 Pro

Friday October 31, 2025 8:28 am PDT by
Apple's iPhone 18 Pro models could be available in new rich and warm color option, according to a known leaker. The Weibo user known as "Instant Digital" today suggested that next-year's iPhone 18 Pro models will be available in at least one of the following color options: Coffee, purple, and burgundy. The iPhone XR, iPhone 11, iPhone 12, iPhone 14, and iPhone 14 Pro were all available in ...
iPhone 17 Pro Cosmic Orange

8 Reasons to Wait for Next Year's iPhone 18 Pro

Thursday October 30, 2025 4:42 am PDT by
Apple's iPhone development roadmap runs several years into the future and the company is continually working with suppliers on several successive iPhone models at the same time, which is why we often get rumored features months ahead of launch. The iPhone 18 series is no different, and we already have a good idea of what to expect for the iPhone 18 Pro and iPhone 18 Pro Max. One thing worth...
iOS 26

6 New Things Your iPhone Can Do in iOS 26.1

Wednesday October 29, 2025 4:22 am PDT by
Apple is about to drop iOS 26.1, the first major point release since iOS 26 was rolled out in September, and there are at least six notable changes and improvements to look forward to. We've rounded them up below. Apple has already provided developers and public beta testers with the release candidate version of iOS 26.1, which means Apple will likely roll out the update to all compatible...

Top Rated Comments

bookcase Avatar
7 weeks ago
The Air is fine for me.
Score: 23 Votes (Like | Disagree)
Donkey Man Avatar
7 weeks ago
More than great for the Air - anyone complaining about its battery life, which is as good as the ordinary 17, must be insane.
Score: 18 Votes (Like | Disagree)
MayaUser Avatar
7 weeks ago
Air is the most impressive
Score: 18 Votes (Like | Disagree)
zahuh Avatar
7 weeks ago
Wish he added the iPhone 16 Pro to this test so we can know if the air really does have the same battery life. Anyway battery looking much better than some of these YouTubers made it sound. In addition, the adaptive power starts working after 1 week so will be interesting to see the results again with that.
Score: 16 Votes (Like | Disagree)
Anaxarxes Avatar
7 weeks ago
Totally expected, Air is performing greatly.

I don't understadn why people had bashed this, seen it as a 'red flag' like MKBHD. Air has similar capacity battery compared to 15/16 and it uses a more advanced node.

Looking forward to see apple implementing these learnings to 18/18 Pro/Fold line next year.
Score: 15 Votes (Like | Disagree)
Devyn89 Avatar
7 weeks ago
That’s not too bad honestly, I was expecting worse.
Score: 14 Votes (Like | Disagree)