Allion Labs | Franck Chen
In the article “Comparing Battery Life and Charging Behavior of Different Tablets”, we introduced the battery life, charging performance, and wireless network performance of different tablets. Now, let’s look at the different aspects of the display screens and cameras of them.
When purchasing a monitor, consumers are usually more interested in the resolution and screen size. Users can pick the resolution and size that most fits their needs. However, it’s different when it comes to purchasing a tablet. The user cannot change the display after making a purchase, and the same is true for a tablet’s camera. The quality of a tablet display can differ according to its brightness, contrast, color temperature, and more. The quality of a camera lens is related to the resolution and quality of the lens, which affects the pictures it takes. This article will compare the quality of various tablet displays and cameras by performing different measurements and tests.
In this article, we’ll introduce 5 types of tablets to compare their performance with the display and camera. We’ll start by discussing the displays. It’s very difficult to see which screen is brighter and determine how much brighter it is just by using the naked eye, so we need to utilize the correct tools to allow us to quantify and compare the different characteristics of the displays.
Figure 2: Color Analyzer – Konica Minolta CA-410
The five characteristics we measured are brightness, contrast, color temperature, basic color gamut, and high-definition color gamut. The results are shown in the graphs below.
Normally, display screen performance is determined by brightness and contrast. The display with high brightness and contrast usually leads to a good user experience for reading and video watching. When the color temperature of the display is close to 6500K, the color accuracy will increase.
In our experiment, both the Model B and the Model A performed well, especially in terms of brightness, color accuracy, and color saturation. The brightness and color accuracy of the Model C are also good, but the default color temperature (7285K) makes the screen look bluer and colder.
Next, let’s compare the results of the cameras. The tools we utilize are the color map tool and a LED light source for the camera to take a photo.
SFRplus test charts ColorChecker Classic Chart C. Philips iWBlast LED Light Sources
The difference between the color chart and the photo taken of it by the camera can show us color percentage error. The smaller the difference is, the closer it is to the real color. The distorted chart is mainly used to confirm the accuracy of the camera, and also determine whether the lens is good or bad. The following graphs are the test results.
After looking at the data, we can see that the Model C ranks first in camera performance, with high resolution and color saturation. The Model D and the Model E have good auto white balance capabilities under a 2800K light. We provided this data as a reference for you to consider your purchase, but at the end of the day, you need to find a product that fits your personal needs.
Tablets are one of the best and most convenient tech products. Not only are they light and portable, but they’re also suitable for reading, browsing the web, watching videos, drawing, and even taking pictures. In some instances, they can even replace computers. In our next article, we’ll compare some of the user experiences of tablets, such as unboxing, packaging, accessories, and hands-on experience.