With just a few months to go before Apple officially unveils the iPhone 17 series, the rumour mill is already speculating what the upcoming smartphones might bring to the table. In the last few months, numerous leaks have hinted that this will be the year Apple will bring one of the biggest updates to the iPhone's design since the iPhone X. If you are curious to know more about the iPhone 17 series, from camera to design, here's everything we know so far. Like last year, we expect Apple to unveil four models in 2025 - the iPhone 17, iPhone 17 Pro, the iPhone 17 Pro Max and the brand new iPhone 17 Air. Öwing to poor sales, several tipsters have hinted that Apple might be done with the "Plus" model and replace it with a Galaxy S25 Edge-like slim device. As for the screen size, the iPhone 17 Pro and the iPhone 17 Pro Max will have the same screen size as their predecessors, which means we might see 6.3-inch and 6.9-inch OLED screens on these models. And while the new iPhone 17 Air is said to have a 6.6-inch screen, Apple might bump up the screen size of the vanilla iPhone 17 from 6.1-inch to 6.3-inch to match it with the iPhone 17 Pro. Previously, rumour had it that the iPhone 17 Air would be more expensive than the iPhone 17 Pro Max, but now it looks like the new model will sit somewhere in the middle. Another huge change is that all models in the iPhone 17 series are expected to get ProMotion displays, which means even the vanilla iPhone 17 will have an LTPO OLED screen with a 120Hz refresh rate. As for the Pro models, Apple might be planning to ditch titanium for aluminium for increased durability. Some rumours suggest that the iPhone 17 Pro and the iPhone 17 Pro Max will have a redesigned Google Pixel-like horizontally aligned camera island that stretches across the width of the phone. This design change is also expected to make its way to other models in the series. Apple is also reportedly working on a 24MP selfie shooter for all models. Coming to the Pro models, rumour has it that Apple's upcoming phones will have an upgraded 48MP telephoto sensor, but it looks like there won't be any change to the main and ultra-wide sensors. Talking of the much anticipated iPhone 17 Air, which is said to be "significantly thinner" than the current gen iPhone models, measuring just 5mm to 6mm in thickness without the camera bump. Coming to the performance, the iPhone 17 series won't likely be getting TSMC's 2nm chips, but the upcoming A19 silicon based on TSMC's 3nm process is said to offer significant performance upgrades. Like every year, the iPhone 17 will most likely be powered by the A19 chip while the iPhone 17 Pro models may get a much powerful A19 Pro chip. The iPhone 17 Air is expected to start from $899, which is what Apple sells the iPhone 16 Plus for. However, the vanilla iPhone 17 and the Pro models might see a price bump because of Trump's ongoing tariff war.