One of the biggest questions leading up to the iPhone 12 launch is how different the iPhone 12 and iPhone 12 Pro models will be. And now, a new leak seems to confirm one of the iPhone 12 Pro's top features.

Ross Young, founder and CEO of Display Supply chain Consultants, posted a list on Twitter of phones he expects to be released in 2020 with 120Hz displays. This includes Samsung's Galaxy Note 20 and Galaxy Note 20 Plus/Ultra, as well as the iPhone 12 Pro and iPhone 12 Pro Max.

This is an important development since, as GSMArena first reported, there had been rumors that Apple was wavering on whether to add a 120Hz display to the iPhone 12 Pro lineup; according to Max Weinbach, who leaked the news in May, Apple would not adopt 120Hz "unless it is perfect. unless it is perfect" and that engineers are unhappy with 120Hz due to color calibration issues.

Therefore, the inclusion of the iPhone 12 Pro and iPone 12 Pro on this list is certainly a positive development. Apple already offers ProMotion displays on the iPad Pro, which can scale up to 120Hz depending on the content displayed on the screen.

In this latest Twitter thread, Young said he expects "Apple's Pro to feature this and at least switch between 60Hz and 120Hz." That's all well and good, but it won't hold a candle to the LTPO technology that will apparently be included in the Galaxy Note 20 Plus/Ultra. The technology is said to allow Samsung's flagship to scale from 1Hz to 120Hz, presumably saving power.

Regardless, the revelation that the iPhone 12 Pro will have a ProMotion 120Hz screen will give Apple enough ammunition to tickle spec-conscious phone buyers and fight the Galaxy Note 20 Plus/Ultra It will get it. And since Young's list does not include the regular Galaxy Note 20, the best 120Hz display may be reserved for more expensive flagship phablets.

GSM Arena's report also echoes other iPhone 12 Pro rumors we have heard previously. For example, the 6.7-inch iPhone 12 Pro Max will reportedly be thinner than the iPhone 11 Pro Max at 7.4mm versus 8.1mm. Also, the iPhone 12 Pro is expected to use a stacked motherboard, so Apple should be able to fit a larger battery this time around.

Other iPhone 12 Pro rumors point out that Apple's more premium handset will offer three rear cameras and a LiDAR sensor to enhance performance in iPhone AR apps and photo workflows. The regular iPhone 12 handset is expected to offer only two rear cameras and no telephoto zoom.

Additionally, the iPhone 12 Pro should have more RAM and support both mmWave and sub-6GHz 5G. The regular iPhone 12 will likely only support the latter 5G. iPhone 12 new models are not expected to ship with EarPods, so Apple will likely push AirPods and AirPods Pro further this fall.

As for the Galaxy Note 20 Plus/Ultra, rumors suggest that it has much more to offer than a 120Hz display. These include a 108MP camera, a dedicated autofocus camera sensor, an improved S Pen, and a larger battery.