What is touch sampling rate?

What is touch sampling rate?




This is one tech jargon in smartphones that you have probably encountered numerous times but probably haven’t given it much thought. 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? Do I need to take note of this feature when choosing a smartphone? Let’s find out below.

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. The ROG Phone 5, for example, has 300Hz, while the Legion Phone Duel 2 has 720Hz. 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. A low touch sampling rate would result in a delayed response.

Do note that this is different from a screen’s refresh rate, which is how many times a screen refreshes itself in a second. The higher the refresh rate, the smoother animations and transitions. However, these two rates go hand-in-hand to provide a highly responsive and smooth experience, especially with gaming.

Do you need a smartphone with a high touch sampling rate?

If you need a smartphone that responds quickly to your touches, then the answer is yes. Competitive mobile gamers will greatly benefit from this hardware advantage as it will allow them to pull the trigger faster in split-second situations. Check out this video of the Black Shark 3S:

But if you’re just a regular user, this shouldn’t be your top priority in choosing a device. You might want to look at screen refresh rates or resolution instead. But in the case that you get a device with a high touch sampling rate, that’s still good news.



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4 Responses

  1. June 26, 2021

    […] is a 6.7 inch AMOLED display with a resolution of 1080 x 2400, a density of approximately 395 PPI, a 720Hz touch sampling rate, and a 144Hz refresh […]

  2. August 9, 2021

    […] is a 6.7 inch AMOLED display with a resolution of 1080 x 2400, a density of approximately 395 PPI, a 720Hz touch sampling rate, and a 144Hz refresh […]

  3. August 12, 2021

    […] color of it both are available in market. it has 6.6 inches of Dot in IPS display having 180HZ touch sampling rate and 90 Hz refresh rate of 720*1600 pixel resolution. Coming to camera quality it has 48 Mega Pixel […]

  4. November 11, 2021

    […] Both the front and back of the mobile are protected with corning gorilla glass. The thickness of this mobile is 7.8 mm. The weight of the mobile is 197 grams which are easily in hand. This mobile uses a 6.7 inch Full HD Plus Super AMOLED display. The display rate of this mobile is 120 Hz and the touch simpling rate is 180Hz.  […]

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