Apple already sells mobile devices that sport a display with a 120Hz refresh rate
Apple’s ProMotion display on the iPad Pro features a 120Hz refresh rate
The display on the Razer Phone 2 has a 120Hz refresh rate
Because the reverse wireless charging feature transfers power from the host phone’s battery, we already expect Apple to bump up the battery capacities for the 2019 iPhone models. Another larger bump will be necessary for the 2020 units for two reasons. First, two of the new handsets will be 5G enabled. Secondly, a 120Hz refresh rate is going to consume plenty of power even if it does make the aforementioned adjustments for a static image and streaming video. According to the rumor, Apple will make life easy; if the battery life doesn’t meet a user’s needs, he or she can simply switch back to 60Hz. The only problem is that once you get used to your phone’s display refreshing at 120Hz, you are going to be extremely disappointed returning to 60Hz.