Apple’s iPhone 17 event is just days away, but the rumor mill isn’t cooling off yet, especially with a fresh leak pointing to 8x camera zoom and a new vapor chamber cooling system for the iPhone 17 Pro lineup.
iPhone 17 Pro may leap to 8x telephoto zoom

A newly surfaced document from a South Korean carrier claims that the iPhone 17 Pro and Pro Max will take a big step forward in optical zoom. Specifically, the sheet pegs the new zoom range at 8x up from the 5x max found in the iPhone 16 Pro.
That’s not a number we’ve seen often in past reports. Some tipsters guessed 7x, others 10x, but 8x is a precise midpoint and possibly more than just speculation.
Vapor chamber cooling could come to the iPhone 17 Pro
The document also references a vapor chamber cooling system coming to both Pro models. If true, this would mark a first for iPhones, though it’s a common feature in flagship Android devices like those from ASUS or Samsung. It’s a key thermal upgrade designed to keep chips cooler under stress, using a sealed chamber that disperses heat far better than standard thermal pads or graphite sheets.
The timing makes sense. Aluminum frames already offer better heat transfer, and the iPhone 17 Pro is expected to include more demanding camera and performance features, potentially justifying the need for enhanced cooling.
What vapor cooling means for users
So, why does this matter? If you’re recording ProRes video in the sun or pushing AAA mobile games with Apple’s latest silicon, you’ve probably seen frame drops or heat warnings. With vapor chamber cooling, Apple could unlock longer sustained performance without throttling.
Here’s where it might show up in real-world use:
- Longer, more stable gameplay sessions
- Extended ProRes video recording outdoors
- 8K video support without overheating
- Faster sustained speeds in AI or multitasking tasks
iPhone 17 Pro could use variable aperture tech
The same leak also aligns with earlier Bloomberg reports claiming the Pro models may include a variable aperture system, an optical zoom mechanism that adjusts physically, rather than relying on fixed lens distances.
If true, this would be a first for iPhone photography and a big shift in how Apple approaches mobile optics.
All will be revealed at Apple’s big event
Apple’s “awe-dropping” September keynote is less than 48 hours away, and if this leak holds water, the iPhone 17 Pro could become one of the most technically ambitious iPhones yet. Between the zoom, cooling, and camera rumors, it’s not just a spec bump; it’s a serious play for pro users.
Stay tuned.