Today Apple introduced iPhone 18 Pro and Pro Max, its latest flagship models. While each Pro model is largely identical, there are two exclusive new advantages—one for each model.
#1: iPhone 18 Pro has C2 modem for cellular, while iPhone 18 Pro Max uses Qualcomm
Apple began transitioning its products to in-house cellular modems in early 2025 with the iPhone 16e. First it offered a C1 modem, then the C1X followed in the iPhone Air last fall.
Now Apple has introduced the next-generation C2 modem. It’s available in iPhone Duo and iPhone 18 Pro, but curiously is absent from the iPhone 18 Pro Max.
Per Apple’s technical specs page, C2 and the iPhone 18 Pro Max’s Qualcomm modem offer comparable specs. They both support mmWave in the US, for example.
But Apple-designed modems do have the benefit of unlocking some exclusive benefits, which Pro Max users will miss out on.
#2: iPhone 18 Pro Max has much bigger battery gains than iPhone 18 Pro
iPhone 18 Pro and Pro Max are both improving in the battery department this year. But as leaks previously indicated, Apple reserved much larger gains for the Pro Max model.
Here’s an overview of quoted battery life for this year’s models vs last year’s:
| Battery Life (video playback) | |
| iPhone 18 Pro | up to 36 hours |
| iPhone 18 Pro Max | up to 45 hours |
| iPhone 17 Pro | up to 33 hours |
| iPhone 17 Pro Max | up to 39 hours |
As you can see, iPhone 18 Pro Max gains six hours of video playback while iPhone 18 Pro only adds three.
Top comment by Nic
I was honestly ready to jump to the MAX after having 12,13 and 16 Pro, but the lack of the Apple C2 is a dealbreaker. The C2 is more power efficient, has better performance in tough coverage and the killer, Limit Precise Location giving mobile networks less useful tracking data on me.
While Apple’s Pro Max models have always been battery champions, with iPhone 18 Pro Max that advantage is even greater than usual.
For more Apple event coverage, here’s our dedicated news hub.
Will either of these differences impact whether you choose iPhone 18 Pro or Pro Max? Let us know in the comments.
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