#touch sample rate

It is usually mentioned in spec sheets of gaming smartphones like the new ROG Phone 5 or the Legion Phone Duel 2, but what is the touch sampling rate? The touch sampling rate is basically the number of times the screen registers a user’s touch input per second and is represented by the unit of frequency hertz (Hz). Touch sampling rates differ depending on the device. Low-end models don't usually have their touch sampling rates published in their spec sheets, but you'll see it in more powerful models with high refresh rates. Most smartphone touch sampling rates start at 120Hz, or it will look for a user's touch input 120 times a second. High-end models, especially gaming smartphones, have higher touch sampling rates. To put it into a different perspective, a 120Hz touch sampling rate would mean the display is ready to accept touch input every 8.33ms, a 300Hz touch at every 3.33ms, while 720Hz is 1.38ms. The higher the touch sampling rate, the faster it is in registering touch inputs. Read more in our articles including "What is touch sampling rate?" and "HTC Touch HD launched and priced".