The one thing that really distinguishes the OnePlus 7 Pro from the Samsung competition though is the inclusion of a 90Hz refresh rate. This isn’t the first 90Hz phone or even 90Hz OLED phone for that matter, however it is the first 1440p 90Hz device out there. This is extremely interesting as 1440p60 is the limit that a single MIPI interface with DSC (Display stream compression) can drive. Thus the One Plus 7 Pro must come with dual-MIPI display interfaces. Depending on how OnePlus, Qualcomm and Samsung (Display DDIC) were able to implement this, it might have notable impact on battery life of the phone, similar to what we’ve seen on Huawei’s Mate 20 Pro. Interestingly, OnePlus offers the option to also drive the display at 60Hz, which is quite curious if the 90Hz mode indeed were to have a battery impact.