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The dimensions of the iPhone 18 Pro and iPhone 18 Pro Max are not expected to change significantly. According to current information, the Pro version will likely remain at 6.3 inches, while the Pro Max will continue to be around 6.9 inches. However, what’s truly noteworthy is not the size, but the screen technology itself.

Reports suggest that Apple may upgrade the display solution in this generation of Pro models, further improving screen brightness, power consumption, or display efficiency. In other words, the iPhone 18 Pro series may not appear much larger than its predecessor, but the actual visual experience and user experience could be significantly different.

Personally, I think this kind of upgrade is more in line with Apple’s style. It doesn’t necessarily make major changes to the appearance every year, but it will gradually adjust things in ways you can feel every day, such as screen brightness, battery life, display stability, and outdoor visibility.

The new screen on the Phone 18 Pro: the focus may be on better power efficiency and always-on display performance.

Apple has maintained a stable approach to iPhone screens over the years, so it typically doesn’t make major changes to its display solutions easily. However, based on current information, the iPhone 18 Pro and iPhone 18 Pro Max may receive a crucial underlying upgrade this time.

Reports suggest that Apple is testing LTPO+OLED panels for the iPhone 18 Pro series. Compared to existing LTPO technology, its focus isn’t necessarily on making the screen look more extravagant, but rather on further improving power efficiency and refresh rate control.

This will be important for the always-on display. While it may seem like a small feature, it actually consumes power continuously. If LTPO+ can make the screen more stable and power-efficient at low refresh rates, the always-on display experience on the iPhone 18 Pro could be more refined, while also alleviating battery life concerns.

Regarding supply, current reports indicate that the screens for the iPhone 18 Pro series will primarily be supplied by Samsung and LG. As for other panel suppliers, it’s said they haven’t yet received certification for Apple’s flagship models, possibly because their LTPO+ panels haven’t yet met Apple’s quality standards.

This is actually in line with Apple’s consistent practice. It may not be the first to use a certain screen technology, but once it decides to adopt a new solution, it usually has very high requirements for brightness, power consumption, color stability, and mass production consistency.

BOE was already a major supplier of panels for the iPhone 17 Pro, but that generation used standard LTPO technology. With the iPhone 18 Pro, Apple may further upgrade to LTPO+, which is the core of this screen change.

Simply put, the reason why LTPO can support always-on display on iPhones is because it can dynamically adjust the refresh rate according to the usage scenario, thereby reducing unnecessary power consumption.

The key point of LTPO+ is to further expand the application range of oxide materials, extending beyond just switching thin-film transistors to driving them. This allows for finer control over the OLED’s luminous current and more flexible adjustments based on ambient brightness and user behavior.

The biggest benefit of this upgrade should be improved power efficiency. Especially in scenarios such as always-on display, low-brightness use, and static images, the iPhone 18 Pro’s screen power consumption is expected to be further reduced, thereby indirectly improving battery life.

Another benefit that is easily overlooked is the display stability in low-light environments. Many OLED screens currently exhibit slight flickering, graininess, or insufficient grayscale clarity at extremely low brightness. If LTPO+ is properly calibrated, the viewing experience when using a phone at night should be much more comfortable.

It’s currently uncertain whether the rumored iPhone Ultra will also use this technology. However, I think if Apple really prioritizes LTPO+ as a flagship screen upgrade this year, it’s best to cover all high-end models rather than making it exclusive to the iPhone 18 Pro. After all, while this upgrade may not sound groundbreaking, it impacts everyday aspects like battery life, brightness, and screen comfort.

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