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Is Titanium Disappearing from the iPhone 17 Series Pro?—The Reason Why Only the "iPhone 17 Air" Continues the Premium Material

Is Titanium Disappearing from the iPhone 17 Series Pro?—The Reason Why Only the "iPhone 17 Air" Continues the Premium Material

2025年07月17日 16:36

Table of Contents

  1. Introduction

  2. Overview of the iPhone 17 Series Lineup

  3. History of Titanium Frames and Apple's Design Philosophy

  4. Four Reasons for the Pro Models' Return to Aluminum

  5. What is the "iPhone 17 Air"?—The Core of Thinness and Lightness

  6. Cost, Weight, and Durability: Comprehensive Material Comparison

  7. Supply Chain and Manufacturing Cost Reorganization

  8. Technical Upgrades: A19/A19 Pro and Wi-Fi 7

  9. Vapor Chamber Cooling and Heat Dissipation Design

  10. Impact on the Japanese Market and Purchase Scenarios

  11. Comparison with Competitors—Galaxy Z Fold 7/Xiaomi 15 Ultra, etc.

  12. Ecological Perspective: Material Selection and Carbon Neutral Goals

  13. Purchase Guide by User Type

  14. Future Outlook: Laying the Groundwork for the iPhone 18 Generation

  15. Conclusion



1. Introduction

The titanium frame adopted in the iPhone 15/16 generation established a strong brand image as a "Pro-exclusive material" that combines luxury and lightness. The news that this will be overturned in just two generations is causing ripples not only among Apple fans but also across the entire smartphone market.NDTV Profit



2. Overview of the iPhone 17 Series Lineup

The iPhone 17 series, expected to be announced this fall (around September 8-10), is

  • iPhone 17 (6.3" OLED)

  • iPhone 17 Pro (6.3" ProMotion)

  • iPhone 17 Pro Max (6.9" ProMotion)

  • iPhone 17 Air (6.6" Ultra-thin)

    likely to consist of these four models.Indiatimes



3. History of Titanium Frames and Apple's Design Philosophy

Titanium is known for its strength, rigidity, and corrosion resistance, weighing about 60% of stainless steel. It was first used in the iPhone 15 Pro and became established in the 16 Pro. However, it was expensive and difficult to process. Apple has used "light and strong = a symbol of Pro" as a marketing weapon.NDTV Profit



4. Four Reasons for the Pro Models' Return to Aluminum

  1. Trade-off with Thinness
    Aluminum, with its high processing flexibility, is advantageous for aiming for a total thickness of less than 7 mm while incorporating vapor chambers and large camera modules.

  2. Yield and Cost Optimization
    Titanium bodies require long CNC processing times, making it difficult to meet Apple's high yield standards. Aluminum allows for easy repurposing of existing lines.

  3. Product Portfolio Differentiation
    By concentrating titanium on "Air = lightness" as a symbol, the differentiation from Pro is redesigned.

  4. Reduction of Environmental Impact
    By expanding the ratio of recycled aluminum, it supports the 2030 carbon-neutral declaration.

Research notes from both Ming-Chi Kuo and Jeff Pu also agree that "Pro will be aluminum, only Air will be titanium."9to5MacMacRumors



5. What is the "iPhone 17 Air"?—The Core of Thinness and Lightness

"Air" is a familiar thin brand in MacBook and iPad. Its first introduction to iPhone is expected to have a thickness of about 6 mm and a weight of around 145 g. The body is made of atitanium-aluminum composite frame, maintaining rigidity while reducing the titanium ratio compared to the current Pro. It is expected to feature a single 48 MP rear camera, 24 MP front camera, and 8 GB RAM.MacRumors



6. Cost, Weight, and Durability: Comprehensive Material Comparison

MaterialSpecific GravityYoung's ModulusProcessing CostScratch ResistanceApplicable Model
Titanium Alloy4.5120 GPaHigh◎17 Air
Aluminum Alloy2.770 GPaLow○17 / 17 Pro / 17 Pro Max
Stainless Steel8.0200 GPaMedium◎(Past Pro)


Titanium is high-strength and lightweight but expensive, while aluminum is inexpensive and highly processable. Apple seems to be leveraging the brand power of titanium in Air while compressing costs for the mass-market Pro.



7. Supply Chain and Manufacturing Cost Reorganization

Aluminum bodies can be repurposed by Foxconn and Pegatron on existing lines. Luxshare has reportedly received orders for the titanium-aluminum composite and will introduce a new process combining laser cladding and robotic polishing. As a result, the manufacturing cost of the Pro models is expected to be reduced by 8-10% year-on-year.



8. Technical Upgrades: A19/A19 Pro and Wi-Fi 7

The standard models (17, 17 Air) will feature theA19 (3 nm+), while the Pro series will have theA19 Pro (2 nm). The former boasts an 18% improvement in power efficiency due to improved high-efficiency cores, while the latter claims a 35% increase in Metal engine performance with a refreshed GPU. All models will support Wi-Fi 7, with a maximum theoretical bandwidth of 46 Gbps.Indiatimes



9. Vapor Chamber Cooling and Heat Dissipation Design

The Pro/Pro Max models implement avapor chamber to address high heat generation from the chip. The aim is to stabilize gaming performance while maintaining the clock limit of the A19 Pro.9to5Mac



10. Impact on the Japanese Market and Purchase Scenarios

If the yen's depreciation trend continues, the domestic price range for the iPhone 17 is likely to be around 150,000 yen, and the 17 Air may be set at around 180,000 yen, equivalent to the current Pro.

  • For those seeking lightweight and long battery life...17 Air

  • For those prioritizing high-performance cameras and ProMotion...17 Pro/Pro Max

  • For those focused on price and experiencing the latest SoC...Standard 17

As premium materials and prices reverse, the above scenarios are expected to change significantly from the past.



11. Comparison with Competitors—Galaxy Z Fold 7/Xiaomi 15 Ultra, etc.

Samsung differentiates itself in the foldable market, while Xiaomi pushes its unique ceramic body even in the high-end segment. This could be a turning point for Apple to shift its focus from material differentiation to "experience value" differentiation.



12. Ecological Perspective: Material Selection and Carbon Neutral Goals

Apple has declared that 100% recycled material will be used for aluminum bodies. The titanium-aluminum composite is also expected to achieve a recycling ratio of over 30%. The material transition supports the strengthening of environmental goals.



13. Purchase Guide by User Type

  • Creators/Gamers: 17 Pro Max (ProMotion + Large Screen + Cooling)

  • Minimalists/Long-distance Travelers: 17 Air (Lightest + Titanium)

  • Light Users: 17 (Price and Performance Balance)



14. Future Outlook: Laying the Groundwork for the iPhone 18 Generation

From 2026 onwards, all models are expected to be unified to a 2 nm process, and Air may be refreshed annually as a "thin flagship."



15. Conclusion

The iPhone 17 series will overturn the conventional wisdom of "Pro = top-tier material" through amajor shift in materials and positioning. Titanium will be for Air, and Pro will be aluminum—Apple is once again aiming to differentiate based on "lightness and user experience." Japanese consumers need to carefully assess the

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