Currently, there is no specific information available about the dimensions of an iPhone 17 Ultra. However, rumors suggest that Apple might be considering an "Ultra" rebrand, potentially related to the iPhone 17 Pro Max, which is expected to have dimensions similar to the iPhone 16 Pro Max but with a thicker body. The iPhone 17 Pro Max is rumored to be 8.725mm thick, compared to the 8.25mm thickness of the iPhone 16 Pro Max, which could accommodate a larger battery[1][4][5].
The iPhone 17 Air, on the other hand, is expected to be significantly thinner at 5.5mm and shares the same length, width, screen size, and bezel dimensions as the iPhone 17 Pro Max[2][7]. The iPhone 17 Pro Max is likely to retain a similar frame to the iPhone 16 Pro Max, with a 6.9-inch display size[1][2].
If Apple does release an iPhone 17 Ultra, it might inherit some of these design elements, but specific details about its dimensions are not yet available. The concept of an Ultra model could potentially involve further enhancements or changes in design and features compared to the Pro Max models.
Citations:
[1] https://www.forbes.com/sites/davidphelan/2025/03/11/apple-iphone-17-pro-max-design-new-leak-hints-at-major-upgrade/
[2] https://www.macrumors.com/2025/03/07/iphone-17-air-same-size-iphone-16-pro-max/
[3] https://www.gsmarena.com/apple_iphone_17_air-13502.php
[4] https://www.macrumors.com/2025/03/07/iphone-17-pro-max-thicker-larger-battery/
[5] https://www.reddit.com/r/apple/comments/1j5lw7e/iphone_17_pro_max_said_to_be_thicker_to/
[6] https://www.macrumors.com/roundup/iphone-17/
[7] https://www.yahoo.com/tech/iphone-17-pro-max-iphone-192508108.html
[8] https://forums.macrumors.com/threads/iphone-17-air-ultra-or-iphone-17-pro-in-2025.2439608/
[9] https://www.reddit.com/r/apple/comments/1h91fpw/iphone_17_air_expected_to_be_2mm_thinner_than/