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Home > New Gear > Redmi K20 Pro review
Redmi K20 Pro review

Redmi K20 Pro review

By  Jocelyn Longoria 2019-06-04 2577 0

The first Redmi mobile phone was released in July 2013. There was no offline press conference, Instead, it was released on QQ Zone. At that time, there were plenty of low-priced android phones, but most were obscure knockoffs. Xiaomi's (or Lei Jun's) strategy is to organize a "regular army" to attract users who want to use smartphones but only have a s,mall budget, with more standardized products and lower prices.

Looking back, Redmi’s strategy is very successful, but for later Xiaomi, the brand and price "can not go up", and became a burden. Therefore, in January 2019, Xiaomi announced the independence of Redmi, and the element of "cost performance" was officially handed over to Redmi.

Appearance: Redmi can be said to be delicate

Delicacy is not a single quantifiable index like weight or screen size, but a comprehensive evaluation of the elements of mobile phone materials, process, design, and even system UI interface. They may place too emphasis on cost performance for Redmi, so they focus on the configuration, while the appearance is not that good. But after a fresh start, the Redmi Note 7, which came out in January, was able to talk about the design, and now the K20 Pro has taken the details up a bit.

The K20 Pro has a popup lens design. It should be said that there is no surprise for it. It comes with a 6.39-inch Samsung AMOLED screen and a underscreen fingerprint function, increasing the screen share to 91.9%. While it lacks the P30 Pro's screen-like sound design, the microseaming speaker also shrinks the forehead to 2.1mm, the left and right sides to 1.85mm, and the chin to 3.8mm.

K20 Pro  popup lens design

This is what Redmi wants, a way for them to tell their users that I have almost the same design for almost half the price.

Similarly, the "kevlar pattern", which was only designed by oneplus 6T last year, has been put on the flagship version of iQOO this year, while Redmi is priced at $372. This is exactly an improvement of Redmi after the restart.

In addition to the black version we got, the Redmi K20 Pro's more beautiful colors this time are flame red and glacier blue. The designers were clever enough to place the highlight on curved 3D glass and change the Angle of the hand to see the flame.

the black version

The K20 Pro has a built-in 4,000mah battery, which increases its weight to 191g, but the thicker body also solves the camera bump problem. It's not quite as flat as Reno's, but at least it's more transparent than the recent glory 20 or oneplus 7.

 

Thanks to its thicker body, the K20 Pro has plenty of room on the side for a pop-up lens and a 3.5mm headphone jack -- a rarity today.

The overall design of the K20 Pro has no major flaws. The pop-up lens is a better (and far more expensive) solution than a drip screen or a perforated screen, and this time the K20 Pro's designers left some small surprises. For example, the red power button on the black body, the red lens circle, the red pop-up lens flash light, and the LED prompt light that is difficult to find on the top of the pop-up lens.

These small details, combined with a full, uncut screen, make for a design that's acceptable to more than 90 percent of the users. It's hard to find an interface that doesn't have one of the most unacceptable drawbacks.

Screen: can satisfy 90% users

It's a 6.39-inch AMOLED screen from Samsung. The screen size is 19.5:9 and the resolution is 2340x1080.

K20 Pro  screen

The parameters are not as good as the 90Hz 2K screen, right? But don't forget that the price difference between the two machines is also nearly double, and in fact, as we mentioned in that review, that screen is not currently in use -- 1080 to 2K parameters are huge improvements, but the daily sensory difference is far less obvious:

The 90Hz is good for using Weibo, while there is no other usage.

After years of baptism, Samsung screen is not the impression of saturation overflow. The screen has a parameter NTSC gamut of 103.8%, a maximum brightness of 600nit, and is enhanced with Xiaomi's sun screen 2.0 technology and 256-step eye-protection mode.

The overall sense is the same as its shape and can satisfy 90% of the users.

Another thing to mention is the hardware DC dimming, which is actually the defect of OLED screen material itself: To ensure the color accuracy, OLED screen phone will switch to low-frequency PWM dimming after the brightness is reduced to a certain degree. As a result, the screen flashes, possibly causing discomfort to the user's eyes.

So this year, various mobile phone manufacturers began to talk about DC dimming solution, the purpose is to solve this problem.

According to official data from xiaomi, Redmi K20 Pro is equipped with pure hardware DC dimming. This method is not only driven by software, but also requires manufacturers to integrate their own algorithms into the screen driver chip, so that the data transmitted from the underlying system to the OLED panel does not decrease, and the gray scale and color number remain the same.

This is the biggest difference with the software DC dimming, the latter is mainly driven by the software algorithm. The flicker is reduced, but the picture quality is also lost.

Redmi K20 Pro features screen fingerprint technology. The official "seventh generation screen fingerprint" theory has a marketing purpose. In terms of actual parameters, the size of each pixel of the optical fingerprint module hardware is up to 7.2 m, which is 100% higher than the sensitive area of the fingerprint, 15% higher than the detection area of the finger, 33% higher than the dynamic range of the signal, and 40% higher than the signal-to-noise ratio.

Redmi K20 Pro screen fingerprint technology.

In fact, the screen fingerprint function is a bit like a phone camera. The actual unlock speed of the K20 Pro is indeed faster than that of xiaomi's previous products. Of course, if the hands are sweaty or the screen is dirty, there is still the case that the unlock is not successful, which is the limitation of the current screen fingerprint.

Hardware configuration: flagship level

At room temperature, 370,000 runs is the current standard for all snapdragon 855 flagships. It's on par (or even slightly higher) with the popular oneplus 7 Pro or Reno tenx. At this point in time, I believe you do not need to read too much about the flagship SoC.

370,000 runs

The other thing is flash performance. Although we have rarely tested this part before, the recent use of UFS 3.0 has brought a lot of attention to this area. We ran off at a Sequential Read speed of 810MB/s, and continued to write at 260MB/s. Judging by the speed, it should be a UFS 2.1 level product.

 

flash performance.

This is not as fast as UFS 3.0 (read 1400, write 390MB/s) and is not the ultimate product. It has to do with the pricing, it has to do with the actual usage. In fact, currently people rarely copy hd video or a large number of MP3 songs to their mobile phones. So USF 3.0 is good, but UFS 2.1 isn't much worse.

Which more practical? You can probably remember how long it's been since you've had a big game installed, or you can copy video to your phone.

Photo: Expert in the price range

The Redmi K20 Pro has the same rear lens configuration as a flagship phone. The main camera features today's mainstream 48 megapixel SONY IMX586 sensor. It has a 1/2 inch base, supports 4 in 1 1.6 micron pixels, and is supported by a 13 megapixel wide Angle and 8 megapixel telephoto lens. We have seen this kind of lens combination before on many flagship phones, which is the "flagship standard".

Generally speaking, a 48 megapixel lens is responsible for high resolution and high picture quality. A 16 megapixel ultra-wide Angle adds more gameplay to taking photos, while an 8 megapixel telephoto lens brings zoom and portrait functions. This combination of lenses can almost cover the entire scene photo experience. In addition, the Redmi K20 Pro continues the AI function of xiaomi phones to identify a variety of scenarios.

With plenty of light, the K20 Pro has good controls over detail, contrast, color and exposure, but can still see noise when magnified in some shadows. In fact, it has something to do with styling. The K20 Pro's photo style is more focused on sharpness, allowing a certain amount of noise in the dark.

 Redmi K20 Pro rear lens configuration

Algorithmically speaking, if you want to control the noise further, the picture details will be slightly worse, which is obviously not what Redmi wants to see.

When the picture is zoomed-in, the K20 Pro retains the most detail (like dark tile streaks) and has more noise. In general, however, it's rare to put a photo this big, so the visual effect of the photo itself is more important than these details. The iPhone XS Max has a richer overall color and the K20 Pro has a higher contrast ratio.

In low-light indoor environment, the noise of K20 Pro will be more obvious, and the corresponding details are lost. In the case of backlight, K20 Pro automatically identifies the scene and turns on the HDR function, which can show the details of backlight. If the HDR function is turned off, the indicator part in the following sample is almost all black.

In terms of night view, when the sample of K20 Pro is not in night view mode, the overall brightness of the picture is not high, the highlight part is inhibited, but there will still be over-exposure; When night mode is turned on, the overall brightness of the picture is enhanced and the high-exposure part is also suppressed. This line of thinking is consistent with most of the super night scene patterns.

In addition, the ultra wide Angle lens and telephoto lens bring the ultra wide Angle mode and 2 times optical zoom mode to the K20 Pro, which can meet the shooting needs of different scenes in daily life. Unfortunately, we were unable to find the ultra micro mode in the K20 Pro's built-in camera, and it was actually tested that this function was not supported.

Overall, the Redmi K20 Pro is comparable to every flagship. While it doesn't do as much algorithmically or functionally as some of the phones that feature photos (like better, higher-multiple zoom with multiple lenses, or ultrazoom mode), it does cover a range of price points that makes it a master.

In terms of front lens, Redmi K20 Pro puts a 20 megapixel lens in the short and compact lifting module, which also supports four in one 1.6 micron pixels. In addition to our common HDR, AI scene recognition, beauty and various light effects, Redmi also adds an interesting function -- panoramic selfie.

This function can be regarded as putting the panoramic photo mode into the front lens. As long as the mobile phone is rotated to take three photos in a row, the system will automatically synthesize a wide-angle panoramic photo, theoretically doubling the viewing Angle. In addition, Xiaomi has developed its own AI distortion correction algorithm.

The speed of Redmi K20 Pro's camera still needs to be improved. We compared it with other models on the market. The shooting speed of it is lower than that of other phones.

Other details:

The K20 Pro supports up to 27W fast chargers, but unfortunately the phone case comes with a Max 18W charger. In addition, this mobile phone has no wireless charging. If you haven't used it before, it doesn't matter. If you have used a wireless quick charger supported by Huawei or Samsung, you will be a little uncomfortable with it.

Another detail is that Redmi finally has an NFC. In addition, the NFC of K20 Pro inherits all the advantages of xiaomi mobile phone, and the simulation function of bus card and door card is almost the most perfect among the current android mobile phones.

The dual-frequency GPS positioning that once appeared in the Xiaomi 8 has also been taken to the K20 Pro. Compared with the traditional GPS, its positioning accuracy is higher. In the wild or open road conditions. Although it is not obvious, the mutual correction effect of dual-frequency GPS will be reflected in the complex overpass or multi-lane city.

One more thing:K20 version

In the recent flagship events, whether it is Reno or oneplus 7, or even earlier P30 series, there are basically two phones released at the same time. Manufacturers have shrewdly made the conference and online theme of "Pro" version information with higher configuration, which can invisibly improve people's goodwill towards non-pro versions.

But a closer look reveals that the phones without the Pro aren't just equipped with a different processor or reduced RAM. They're more likely to be significantly reduced, with a different screen, or almost two different phones than the Pro version.

Before the conference, Redmi director Lu Weibing also talked about this point - this time the Redmi K20 is consistent with the K20 Pro at least in terms of body design, screen, lens, etc. It just switched to a snapdragon 730 processor -- and this one is not weak. It is manufactured using an 8-nanometer LPP process (855 is also just 7 nanometers) and consists of a brand-new eight-core Kryo 470 core, which is similar to the size of 2* cortex-a76 +6* cortex-a55 core. The main frequency is 2.2ghz and 1.8ghz, respectively. Compared with the previous snapdragon 710, it has a 35% performance improvement.

Conclusion: combination of cost performance and real flagship

The K20 Pro, the second product of the independent Redmi brand, has redefined what it means to be a "phone for the money" -- not necessarily a product with no design or manufacturing sophistication and not necessarily at the expense of configuration. The words "flagship" and "value for money" don't clash. K20 Pro is such a sample. It brings together the elements of ease of use, beauty, and affordability.

 You may also want to read:
 Xiaomi Redmi K20 Pro equipped with Snapdragon 855 will have an in-display fingerprint sensor
  Roborock S6 vs Roborock S5: performance and hardware updates
  Huawei has registered "Hong Meng": name of Huawei OS

 

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