iPhone 8, 7 Plus measured up against Android flagships in this speculative render
The current trend sweeping the smartphone design field is creating bezel-less phones. That allows makers to give consumers what they want (big screens) without going over the limit of what they can handle (literally, what they can hold in their hand).
Heres a size comparison of flagships past, present and future, compiled by @OnLeaks. Note the iPhone 8 (second from the left). Its about the size of a Google Pixel or a Huawei P10, but its screen size is unknown - the latest rumors say its screen will cover the whole front of the device.
This new generation iPhone is said to have an OLED screen, 5.8 in diagonal (and likely with a wider than 16:9 aspect ratio). The home button/fingerprint reader will give way to a function area. Those are the expectations anyway.
Heres the iPhone 8 from a few more angles.