The Redmi K40 series is officially released. There are three models: Redmi K40, Redmi K40 Pro and Redmi K40 Pro+, with a starting price of 1999 yuan (6GB+128GB).
The three models use the same E4 AMOLED digging screen, with a refresh rate of 120Hz and a resolution of FHD+, and have obtained DisplayMate A+ certification.
A message asked why Redmi K40 uses a hole-digging screen solution instead of the pop-up full-screen solution of the previous generation K30 Pro.
Lu Weibing, president of Xiaomi Group China and general manager of the Redmi brand, said that we have adopted a pop-up full screen for both K20 Pro and K30 Pro, pursuing the most extreme screen-to-body ratio. But the pop-up module is too large and takes up too much product space, so we chose the digging direction this time, but our goal is to make the smallest hole in the world.
At present, the digging screen has become the standard configuration of mid-to-high-end flagships, such as Samsung Galaxy S21 series, vivo X60 series, iQOO 7, Xiaomi 11, etc. are all digging screen solutions.
The reason why the pop-up full screen takes up less and less is that the lifting module takes up a lot of space. In the era of 5G mobile phones, the lifting module makes it difficult to make the mobile phone thin and light, and it will affect the waterproof and dustproof performance of the mobile phone.
Rupesh 
Mike Lee-111 
Gelo 