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In the data leak earlier in the summer there was confirmation there would be different modems in the eSIM only vs physical SIM (international) models.

The speculation was that the US model would continue to use Qualcomm modems.

The C-series modems are so superior. It will be a huge and underrated upgrade. It was one of the best parts of the iPhone Air imo.
And the iPad Pro. That modem’s ability to achieve perfectly usable bandwidth in areas where my iPhone 17 Pro Max just gave up is amazing. People with Apple Modems are going to be able to be used in areas where Qualcomm modems consider it a dead zone. Apple should not be this much better at modems and SoC’s than Qualcomm and Intel, but here we are.
 
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did you even bother to read the very fist sentence of the article?
If the Pro Max uses C2, why does Apple's spec page only show it in the Pro, not the Pro Max (in the U.S. market)?

Pro and PM Medium.jpeg
 
Can we get a confirmation on this? Twitter seems to think Pro Max is Qualcomm while Duo/Pro is C2. Tech specs page seems to confirm this is the case.

US/UK/Canada websites shows C2 only under Pro. India website shows C2 under both.

Edit- article updated. Still a very weird decision.
 
If the Pro Max uses C2, why does Apple's spec page only show it in the Pro, not the Pro Max (in the U.S. market)?

View attachment 2660344
Hence the reason why I wonder is the US-market iPhone 18 Pro Max using essentially the same Qualcomm modem as the one on the Galaxy S26 Ultra, which is the Snapdragon X85? The smaller iPhone 18 Pro likely is using the C2 modem, probably for power consumption reasons due to the smaller battery.
 
Can we get a confirmation on this? Twitter seems to think Pro Max is Qualcomm while Duo/Pro is C2. Tech specs page seems to confirm this is the case.

US/UK/Canada websites shows C2 only under Pro. India website shows C2 under both.

Edit- article updated. Still a very weird decision.
That one page seems to be the only conformation so far. I hope it's just missing, I really like the C1 chip.
 
Can we get a confirmation on this? Twitter seems to think Pro Max is Qualcomm while Duo/Pro is C2. Tech specs page seems to confirm this is the case.

US/UK/Canada websites shows C2 only under Pro. India website shows C2 under both.

Edit- article updated. Still a very weird decision.
Probably just an US limitation, other countries Pro Max has C2. Checked a few European countries and they all have C2 in Pro Max specs.
 
Apple says the C2 brings AI-powered improvements to cellular quality and reliability

Surprised Apple felt the need to mention this when it's been pretty well established it's more of a turn-off for consumers than something they're interested in.
[Citation required]
 
https://www.apple.com/iphone-18-pro/specs/

  • iPhone 18 Pro and Duo use the new C2 modem
  • iPhone 18 Pro Max continues to use a Qualcomm modem
  • C2 modem adds a new LTE band 106, which the Qualcomm modem doesn't support
  • C2 modem supports mmWave bands n258, n260, n261
  • C2 modem supports 21Mb HSPA+, Qualcomm supports 42Mb DC-HSPA (though not sure if any carrier is still using that)
On the Cellular Networks page on Apple’s site, both are listed as supporting LTE band 106.
 
How’s the C1X in real life use vs Qualcomm? Anyone have any experiences to share? I have Visible, which is on Verizon, so I am curious to see how it fares.
 
https://www.apple.com/iphone-18-pro/specs/

  • iPhone 18 Pro and Duo use the new C2 modem
  • iPhone 18 Pro Max continues to use a Qualcomm modem
  • C2 modem adds a new LTE band 106, which the Qualcomm modem doesn't support
  • C2 modem supports mmWave bands n258, n260, n261
  • C2 modem supports 21Mb HSPA+, Qualcomm supports 42Mb DC-HSPA (though not sure if any carrier is still using that)
Yeah DC-HSPA+ is kind of pointless. Anyone running DC HSPA would have moved to LTE at minimum by now. Annoyed that they still limit mmWave to the US and also that they didn’t give 5G satellite ability via NR-NTN to 17 Pro with the X80 chip.
 
How’s the C1X in real life use vs Qualcomm? Anyone have any experiences to share? I have Visible, which is on Verizon, so I am curious to see how it fares.
I have the 17 Pro Max and an iPhone Air, and they’re about the same in day-to-day use. The only noticeable difference is no mmWave (which comes in handy at crowded events like concerts).
 
Finished the keynote and the duo is better than I thought I terms of compromises. No telephoto, but I have a 17 pro max and will keep it even with a duo.

I like the tweaks in iOS and the C2 Modem in the US, finally ditching Qualcomm.

Still not buying this year and will wait for Duo 2 next year. Sadly memory prices won’t drop anytime soon.
 
Wow what a bummer the Pro Max doesn’t get the C2. Maybe they figured the battery life is so much better on the Max, didn’t need it for now? Maybe production issues?
Actually the reason is simple. China. Dual screen is very popular in China. Unfortunately C2 still miss some capabilities for China mobile.
 
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