Quanto T O Redmi Note 8T?
O Redmi Note 8T segue a nomenclatura utilizada pela Xiaomi, sendo uma versão um pouco mais acessível do Redmi Note 8, não trazendo versões com 6 GB de memória RAM, por exemplo, além de um design um pouco diferente.
The display resolution shows the number of pixels on the horizontal and vertical side of the screen. The higher the resolution is, the greater the detail of the displayed content.
Wi-Fi
Focal length is the distance in millimeters from the focal point of the image sensor to the optical center of the lens. The 35 mm equivalent indicates the focal length at which a full-frame camera will achieve an angle of view that's the same as the one of the camera of the mobile device. It is measured by multiplying the native focal length of the camera by the crop factor of the sensor. The crop factor itself can be determined as the ratio between the diagonal distances of the image sensor in the 35 mm camera and a given sensor.
From simple tasks, like flicking between apps and booting up games, to heavier-duty processes like listening to music while taking pictures or playing games (which most phones can handle), we found the Note 8T suffered. In the case of the light tasks, the device was just slow, but for those heavier processes app crashes were commonplace.
Vídeos
Xiaomi promises 1500:1 contrast ratio for the Note 8T screen and our measurements show it is possible. The maximum brightness varied between 430 and 460 nits, while the black levels were between 0.250 and 0.330 in sequential measurements. After a restart we began getting more consistent readings and that's what you are seeing in the table below.
A CPU core is the processor unit, which executes software instructions. Presently, besides single-core processors, there are dual-core, quad-core, hexa-core and so on multi-core processors. They increase the performance of the device allowing the execution of multiple instructions in parallel.
TD-SCDMA (Time Division Synchronous Code Division Multiple Access) is a 3G standard for mobile networks. It is developed as an alternative to the W-CDMA standard in China by the Chinese Academy of Telecomunications Technology, Datang Telecom and Siemens AG, and combines TDMA and CDMA.
Mobile network technologies and bandwidth
One of the main characteristics of the cameras is their image resolution. It states the number of pixels on the horizontal and vertical dimensions of the image, which can also be shown in megapixels that indicate the approximate number of pixels in millions.
The 13MP selfie camera took respectable pictures, and in Portrait mode the bokeh background blur was adept at picking out, and blurring, the background without accidentally messing up our errant hairs too.
Well, it lasted that long with medium use, but after an extended period of gaming, listening to audiobooks or watching Netflix, the battery was sapped a surprising amount, so if you’re an avid media consumer this phone probably won’t last you a full day.
Audio file formats/codecs
Storage space was quite an issue too, as we tested the 32GB unit which filled up so quickly we couldn’t actually install updates when they came along (no thanks to the 10GB system storage either). There are 64GB and 128GB versions as well, which come with 4GB of RAM instead of the 3GB you get with the 32GB version, and we’d highly recommend them instead of 32GB.
There are several network technologies that enhance the performance of mobile networks mainly by increased data bandwidth. Information about the communication technologies supported by the device and their respective uplink and downlink bandwidth.
Connectivity
The CPU bits are determined by the bit-size of the processor registers, address buses and data buses. 64-bit CPUs provide better performance than 32-bit ones, which on their part perform better than 16-bit processors.
More impressive is the Xiaomi Redmi Note 8T’s video recording capabilities, as you can shoot in 4K which is almost unheard of in a phone this cheap, and it also supports 60fps at 1080p. This is, of course, something of a battery drain, but it’s still an impressive feature for a budget phone to have, and one way in which it stands above the competition.
This SAR rating shows the maximum level of exposure to electromagnetic radiation taken when the device is placed next to the ear. The applicable limit for the US is 1.6 W/kg per 1 g of tissue. In the US the FCC tests and sets the SAR limits for all mobile devices, which are controlled by the CTIA.
Design
Uma vantagem do Xiaomi Redmi Note 8T (128GB) é a possibilidade de utilizar duas operadoras de telefonia, um aparelho Dual-Chip com entrada para dois cartões SIM.
Ótima conectividade deste aparelho que inclui Bluetooth 4.2 + A2DP, WiFi 802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO e NFC para pagamentos por aproximação ou conexão com outros dispositivos.
Xiaomi offers three different Contrast settings for the 8T's display. With the Automatic contrast set to on, the screen output seems to be tuned for accuracy in the sRGB color space, and we measured an average deltaE of 6.3. Only in this mode, you can choose the color saturation (default, warm, cool) and the Delta E of 6.3 was measured with the Default preset. Choosing warm will diminish the noticeable blue tint but won't improve the overall accuracy by much.
Speaker loudness
Wi-Fi communication between devices is realized via the IEEE 802.11 standards. Some devices have the possibility to serve as Wi-Fi Hotspots by providing internet access for other nearby devices. Wi-Fi Direct (Wi-Fi P2P) is another useful standard that allows devices to communicate with each other without the need for wireless access point (WAP).
Digital cameras are able to shoot videos at different frames per second (fps). Some of the main standard frame rates for recording and playing video are 24 fps, 25 fps, 30 fps, 60 fps. Information about the maximum possible fps for shooting videos at the maximum possible resolution.
When Xiaomi launched the Mi Note 10 in late 2019, it also unveiled the Redmi Note 8T from its budget brand, albeit with less fanfare.