As the newest trend in tech, high refresh rate (HRR/120 Hz) displays are rapidly becoming a part of the flagship smartphones market. The trend that first debuted with the Razer Phone, is now expected to feature in the top smartphones. News of Xiaomi working on a HRR display comes from a leaks expert on Weibo who claims that the company is developing 120Hz OLED smartphone displays that will be ready to ship next year. A screenshot uploaded by XDA developers which showed the refresh rate options found in the MIUI 11 beta also corroborates the claim.A high refresh rate essentially means the display will be faster. However, it is important to note that a high refresh rate display also requires more battery and processing power to tell the device what to show on the screen faster. A high refresh rate display is also somewhat unnecessary in smartphones, except for a few instances they might help like live video.