It's about 144x81 centimeters.
That is, the length of the phone is about 144 centimeters and the width is about 81 centimeters.
The inch of the mobile phone generally refers to the length of the diagonal line of the mobile phone screen, according to the conversion of 1 inch =2.54 cm, the diagonal length of the 65-inch mobile phone screen is 65x2.54=165.1 cm;
The screen ratio of the 651 inch mobile phone is 16:9, so it can be inferred from the Pythagorean theorem that the screen length of the mobile phone is about 144 centimeters and the width is about 81 centimeters.