Redmi, the sub-brand of Xiaomi, launched the Redmi K40 at the end of February 2021 in China. Almost a year later, the top variant of the smartphone will be available at a never-before-seen price tonight. This deal is offered by a popular online retailer ahead of the Chinese New Year.

JD (aka Jingdong) has announced a stellar deal on the almost year-old Redmi K40. According to ITHome, the retailer will be selling the top-of-the-line 12GB + 256GB variant of the phone at only ¥1,849 ($291) starting tonight at 8 PM in China.

The handset normally retails at ¥2,049 ($322). But from later today, the retailer will offer a ¥200 ($31) discount coupon as part of its Spring Festival Sale celebrating the New Year.

The original price of Redmi K40 12GB + 256GB was ¥2699 when it was first introduced. Like any other consumer electronics product, its price was cut down multiple times in the following months as it aged.

This smartphone is also known as Mi 11X in India and POCO F3 in other international markets. However, they don’t come in a 12GB + 256GB variant.

Having said that, Redmi is gearing up to launch the Redmi K50 series in China in November. The brand has already started teasing the arrival of the new lineup.

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Giztop is giving out Xiaomi Redmi K40 5G Smartphone at a discounted price of $299 only. This discounted price is applicable to the Blue and White color, 6GB + 128GB variant. However, you can buy different color and memory variants of Redmi K40 with discounts up to $100 only at Giztop. 

Xiaomi Redmi K40 features a 6.67” E4 AMOLED True Tone display and a 120Hz refresh rate. The smartphone comes in multiple memory variants viz: 6GB + 128GB, 8GB + 128GB, 8GB + 256GB and 12GB + 256GB. Powered by the Qualcomm Snapdragon 870 processor Redmi K40 features a triple rear camera setup with a 48MP main camera and 8MP + 5MP secondary cameras. For your selfies, you can find a 20MP camera in the front. 

Redmi K40 is fueled by a 4520mAh battery and supports 33W fast flash charge. It operates on Android 11 based MIUI12 and supports both English and Chinese language. Xiaomi Redmi K40 5G comes in four different colors like Black, Blue, White, and Ink Feather.

Generally retailing for $399, you can now buy Xiaomi Redmi K40 5G at a discounted price of $299 only at Giztop. This is a limited-time offer. So place your order asap. 

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Redmi, the sub-brand of Xiaomi, launched the Redmi K40 series in China in late February, The most affordable smartphone in the lineup is the vanilla Redmi K40. It starts at only ¥1,999 ($312) in the country. Now, for a limited time, the handset is selling at an even cheaper price tag.

Right now, retailers across China are offering heavy discounts as part of 618 sales. Earlier this week, we reported that the iQOO Z 5G was being sold at only ¥1,299. A few days later, we have come across yet another fantastic deal, courtesy of ITHome.

JD or Jingdong is one of the largest online eCommerce companies in China. It is currently offering a 10% discount coupon for the Redmi K40 6GB + 128GB variant. Interestingly, the coupon is only available for customers residing in Beijing, Shanghai, Guangzhou, Shenzhen, and Dongguan.

With the 10% discount coupon, the price of the Redmi K40 6GB + 128GB comes down to ¥1799.1 ($281). That’s an unbelievable asking price for a flagship killer smartphone featuring a Qualcomm Snapdragon 870 SoC and a 120Hz Samsung E4 AMOLED display with an A+ rating from DisplayMate.

The Redmi K40 is sold as POCO F3 and Mi 11X in global markets. The same 6GB + 128GB variant of these phones retail for €349 ($423) and ₹29,999 ($411) respectively. In other words, people in China are lucky to get hands-on this device at an unrealistic price tag.

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We previously reviewed the Motorola Edge S, the first phone with the Snapdragon 870 chip. It’s possible that you were not quite satisfied with its overall performance of that phone. At the time, it was the only Snapdragon 870 phone launched in the market, so you didn’t have a choice. But now Redmi gives you a brand new option — the Redmi K40. Without further ado, let’s see how Redmi’s breakout model, the K40, performs in real life.

Redmi K40 Review: Design

The Redmi K40 comes in a regular-sized box. The charger and cable that disappeared from Mi 11’s box reappear in the K40 box. A 33w charger is included, and we’ll talk about the charging part later. 

At first glance itself, you realize that the K40 is much more refined than the K30. It weighs only 196g and is 7.8mm thick. The whole back is a continuation of the Mi 11 design. The camera module is elongated and the elements are distributed more evenly. This makes the back look much better than its predecessor. The red and blue gradient color is the main color of the K40. It refracts blue and red in different lights. While this is not the first time we have seen this color, if you are a person who likes a design that stands out, you will definitely like it. 

The side fingerprint sensor embedded into the power button is a bit raised. This differentiates the phone from the previous side fingerprint recognition phones which featured a sensor that was situated in a groove on the side. The advantage is that it is more integrated into the frame and looks like a normal power button. And this makes it easier to press with your finger. Overall, the design of the K40 is a definite improvement. It’s even better looking than the Mi 11. This should be the first time that Redmi is on par with Xiaomi in terms of design. 

You can check out the design of the Redmi K40 and K40 Pro in more detail in our hands-on article. 

Redmi K40 Review: Display Experience

This year the K40 series uses a flat E4, 1080p, 120hz refresh rate OLED screen. The screen is one of the main selling points of the K40 series. Featuring 1300 nits of peak brightness and a 5,000,000:1 contrast ratio, while consuming 15% less power, the performance is truly outstanding. And with support for a three-finger 360hz touch sampling rate, multi-finger control should be more responsive than other phones. But the improvement in experience is more obvious to the user perception than the improvement in parameters. 

There are two obvious points of improvement in the screen experience of the K40. First one is the tiny 2.76mm hole-punch and the second one is the “Adaptive Color display”. This is one of the smallest hole-punch we’ve seen, allowing you to almost ignore the front camera and immerse yourself in the joy of video. As for “Adaptive Colors”, it is not a strange concept for iPhone users. It adjusts the color temperature of the screen to the color temperature of the ambient light. This feature can help reduce eye strain. 

Apart from the plastic frame and the wide bezels, the screen for the price point is excellent.

Redmi K40 Review: Performance & Gaming

As you might have already seen in our Motorola Edge S review, the Snapdragon 870 is a very well-balanced chip. As a long-time Qualcomm customer, will Redmi be able to tune the Snapdragon 870 any better?

 Let’s look at the regular Benchmark results first. 

The phone scores the following in benchmark tests: AnTuTu score is 662,201, 3DMark score is 4192, and GeekBench 5’s single-core score is 1034, and multi-core score is 3485. We can see that the K40’s peak performance tuning is similar to the Edge S. 

Next, let’s look at the tuning optimization for sustained performance output. In the Genshin Impact half-hour stress test the phone ran at 50.45fps, a little higher than the Edge S. Although judging from the frame rate curve, Redmi’s K40 and Edge S’ gaming performance look about the same. But looking at the frequency of lag, the K40 seems to be more consistently tuned.

Now let’s take a look at the BrightRidge 20 minute test, in which the K40 got an average of 42 fps. This is lower than the Edge S. And there were a few times when the frame rate was only about 20 frames after down throttling. The experience was not very good. So it looks like for games that were optimized for the Redmi model, the phone offers a better gaming experience than the Edge S. And the temperature never went above 50℃. But if there were no targeted optimizations, the gaming experience would be inferior to the Edge S.

Redmi K40 Review: Camera Performance

Given its price segment, we knew the cameras were going to be average. Let’s see how good it is at taking photos.

Please note that the below galleries feature the full-size samples from the K40 and a few samples from the K40 Pro for comparison. If you want to check out the comparison with Motorola Edge S, please watch our video review.

Main Camera

K40’s main camera is the IMX582 sensor introduced the year before and there is no optical stabilization. The ultra-wide-angle sensor is 8MP, and there’s a 5MP telephoto macro lens of the same type as the Mi 11. 

In real life, the K40’s primary camera underexposed samples in daylight conditions. Dynamic range is also not good, with serious loss of detail in dark areas. Colors are also not vibrant enough. The resolution is also inadequate.  Apart from the slightly better control of the purple-fringing issue, the K40 loses out in all daytime scenes. 

Night Camera Performance 

At night the K40’s exposure returns to normal. Although the highlights still spill over, there is much less noise than the edge s with almost the same resolution. There is also more detail in the dark areas than in the Edge S. This was applicable with Night mode on as well. Although the Edge s has improved its exposure in extreme dark lighting conditions, the noise is still not reduced. So the night time camera performance is a small victory for the K40.

Ultra Wide Angle Camera

Both phones’ ultra-wide lenses perform the same as the main camera in daylight. The K40 didn’t do well and was defeated in this department. Since the results were the same, I won’t repeat myself. At night the K40 achieves another comeback. It wins across the board, except for the small range of highlight suppression, which sometimes was not good. If you turn on night mode, the gap will widen even more.

Macro Shooting

The K40 uses a separate special lens for macro shooting. So the focus distance is much closer than the Edge s. This is why the results are particularly impressive. As for the video, I just want to remind you that the K40 does not have 6K videos on its main camera. 4K only supports 30fps. Both the Edge S and the K40 only support up to 1080p 30fps from its ultra-wide camera.

Redmi K40 Review: Battery Life 

The K40 comes with a 4520mAh battery. After our tests, half an hour of Tiktok and half an hour of 1080p internet video both use only 5% of the power. 30 minutes on the Genshin Impact consumes 18%. 20 minutes on the BrightRidge consumes 20%. This battery optimization is still good. 

Although the K40 is still using 33w of charging, they’ve optimized it a lot this time. It charges to 69% in half an hour and can be fully charged in 54 minutes. So this is faster than many other brands’ 40w charging. So you don’t have to worry at all that the 33w of the k40 is not enough.

Redmi K40 Review: Conclusion

To conclude, if you’re looking for a phone with high performance, low heating, and not so demanding camera, the K40 is perfectly suited for you. There are even a few surprises, such as the excellent E4 screen and the sophisticated design. Given its drawbacks, it’s not the best phone but it will be the most comfortable phone you can buy in this price range, at least for now. 

There have been a lot of new phones recently, so the competition will definitely get tougher in the coming months.

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Today in China, Redmi announced the K40 series which has three phones – the Redmi K40, the Redmi K40 Pro, and the Redmi K40 Pro+. The base model, the Redmi K40 arrives as a flagship killer and a challenger to the Motorola Edge S. It packs an impressive display, a flagship processor, and a price tag that leaves you wondering if you really need to get a high-end flagship this year.

Redmi K40 Design

The Redmi K40 looks nothing like its predecessor. It drops the pill-shaped right positioned punch hole for a centered one. It also switches the design on the rear to one that is similar to that of the Mi 11 and with fewer camera sensors than the Redmi K30. Redmi has also managed to make it thinner and lighter even though it packs a tiny bit bigger battery.

Redmi K40 Specifications

Just as it looks nothing like its predecessor, so also does it perform better than it. The 120Hz IPS LCD display is gone and in its place is a 6.67-inch E4 AMOLED True Tone display with a 120Hz refresh rate and a 360Hz touch sampling rate. The display has a DCI-P3 color gamut, HDR10+, and a maximum brightness of 1300 nits. It also has MEMC and is covered in Gorilla Glass 5. For those concerned with the size of the hole, Redmi says it is 2.76 millimeters.

The Redmi K40 gets a huge performance boost. The Snapdragon 730G of the Redmi K30 has been replaced with a Snapdragon 870 processor and it features up to 12GB of LPDDR5 RAM and 256GB of UFS 3.1 storage.

There are fewer rear cameras on the phone this time around. It has a 48MP f/1.79 Sony IMX582 primary camera, a 5MP telephoto macro camera with a 50mm focal length, and an 8MP 119° ultrawide angle camera. The selfie camera is a 20MP sensor.

The Redmi K40 can record slow-motion videos at a maximum resolution of 1080p and at 960 frames per second. It can also record in 4K at 30fps. The camera app is packed full of features including a VLOG mode, Magic Clone, macro video recording, and lots of filters for both still photos and videos.

Other features of the phone are a side-mounted fingerprint scanner, NFC, Bluetooth 5.1, Wi-Fi 6, stereo speakers with Dolby Atmos, Hi-Res Audio, and Hi-Res Audio Wireless. There is a 4520mAh battery inside the phone with support for 33W fast charging. Redmi says it can fully charge in 52 minutes. The phone also has support for Quick Charge 3+ and Power Delivery 3.0.

The Redmi K40 runs MIUI 12 based on Android 11 out of the box.

Redmi K40 price and availability

The Redmi K40 is available in four configurations and below are their price tags:

6GB RAM + 128GB – ¥1999 (~$310)

8GB RAM + 128GB – ¥2199 (~$340)

8GB RAM + 256GB – ¥2499 (~$387)

12GB RAM + 256GB – ¥2699 (~$418) [Early bird price of ¥2499 (~$387)]

The phone is available in three color variants – , Bright Black, Dreamland, and Sunny Snow.

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Ever since Redmi became an independent brand, it has been releasing a flagship smartphone of its own. The first model was Redmi K20 Pro (Mi 9T Pro), followed by Redmi K30 Pro, which is sold as POCO F2 Pro in global markets. Now, just a few days after the launch of Xiaomi Mi 11, the world’s first smartphone powered by Snapdragon 888, Redmi also confirms the arrival of the Redmi K40 series powered by the same Qualcomm chip.

The information regarding the launch of the Redmi K40 series comes directly from Redmi’s General Manager, Lu Weibing. He shared a post on Weibo revealing some key features of the brand’s upcoming flagship smartphone series.

According to him, the Redmi K40 series will be officially announced in February. Since the post as well teaser poster read ‘series’, we expect at least two devices – Redmi K40 and Redmi K40 but there could be more. Because last year, Redmi released multiple variants of Redmi K30 and a Zoom Edition of Redmi K30 Pro with a different camera setup.

That said, although the GM mentions Snapdragon 888, this chipset should be mostly exclusive to the Pro version, which he also confirms to start from ¥2,999 ($463). In other words, the Redmi K40 Pro could be the cheapest Snapdragon 888 smartphone for a while just like its predecessor.

Further, the brand’s executive also reveals the device to probably sport the “most expensive flat display” (translated”) and a battery rated above 4,000mAh. Since expensive panels are usually associated with AMOLED displays, we can expect the phone, at least the Pro variant to come with this type of screen. But there’s a chance that all the devices in the series may feature 144Hz refresh rate LCD panels like the Mi 10T (Redmi K30S Ultra) and the Mi 10T Pro.

Anyway, we expect to learn more about the Redmi K40 series via certifications, leaks, and teasers ahead of the official launch next month.

UP NEXT: Black Shark 4 has 4,500mAh battery and 120W rapid charging, confirms company

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