Xiaomi Redmi K40 Pro + (5G) 12GB+256GB Blue

SKU redmi-k40-pro-5g-12gb256gb-blue
Possibility to return:Yes, within 14 days to warehouse in USA / UK or EU
Length of warranty12 months
Warranty Extension:At promotional terms, up to 24 months (during checkout)
Dual SimYes
Rom:Global (Multilanguage + Google Apps) applied over original
Processing time for warranty service from6 weeks
Processing time for warranty repair to12 weeks
Unavailable - order on demand
$ 529.99
No tax included
Device rom
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Frequently Asked Questions

Delivery dates are provided on every product page, below product name. When you'll click the dates, a calendar will appear.

AFTER YOU MAKE AN ORDER: These dates are also available at your customer area -> order history, and with the e-mail with order confirmation.

The price of the product is final, however, there may be costs when crossing the border of your country, depending on the type of declaration you submit. You can ask us for any customs declaration during the cart submission process, you can enter this value in the "Customs declaration" or "Comments" field. However, sometimes Customs will not respect these values so it is a good idea to be prepared to pay the domestic tax when your package arrives.

In EU and UK you are going to pay your country VAT from declared value (ex. 20% in UK) + small clearance fees depending on the delivery method, for details please ask local DHL, Fedex or UPS customs agency.

If you are a European citizen / entity and have an EORI number, you can deduct this tax later.

USA customers/entities do not pay tax.

In most cases we can ship to your country, you can check the cost after you'll add product of your choice to the cart (no purchase is needed).

Dear, this product is factory unlocked, should work in your country. If it's smartphone or have GSM model it might be wise to compare it's LTE/5G frequencies with the LTE/5G frequencies of your network to confirm coverage compatibility (they are listed in the product description). If frequencies aren't listed there, please contact us.

List of the package contents is usually listed at the end of the product description.

Check our full Questions and Answers section 

By clicking here

OTA updates are most likely going to work in most of the devices bought at our website and they should not change system sate ex. removing multi-language and google apps.

However, there are devices where OTA will not work, we usually inform about it on the product page, in the "ROM" section. If you'll not be able to make automatic updates, you may always try to make manual system update, which may require some skills or tools (ex. ADB) installed on your computer. It may also remove system customisations installed before ex. multi-language support. For more info you may ask us a question from product page.

NFC will most likely work on the most of the devices bought on our website. 

Exception are some, but not all, devices sold with unlocked bootloader, due to Global rom installation ex. Xiaomi. Some other devices with Global rom installed on original rom, and unlocked bootloader shouldn't have problems with NFC payments - ex. Realme devices. Root can also cause NFC banking applications not work, but our store in current time don't sell rooted devices at all (state for January 2024).

If you have doubts if your device will have NFC payments working you should ask us every time by product questions available at product page or checks questions of the other customers at the bottom of the product page.

14 days returns

Locally - to addresses in the UK, Germany or the USA (check exceptions)

12 +12 Months Warranty

Free guarantee up to 24 months for selected products (Check requirements)

100% Genuine

Only Original, *not* refurbished Products

Product description

A bit ruthless true flagship

In front of you is Redmi so far

The most powerful flagship product.

The somewhat ruthless Snapdragon 888, its performance reaches its peak again.

The somewhat ruthless E4 flagship straight screen has been certified by an international authority,

A bit ruthless 100 million pixel image system,

A bit ruthless e-sports gaming experience,

And a bit ruthless design, craftsmanship, power...

Breakthrough, hardcore, everything just to live up to your waiting,

Join hands to start a new year of desperate love.

Qualcomm's first
5 -nanometer chip
Performance is further optimized.
The most powerful Cortex
The highest main frequency is 2.84GHz, the parallel computing efficiency is greatly enhanced, and the continuous high frequency is more amazing.
CPU peak performance improvement*
Snapdragon 888
Snapdragon 865
The biggest performance increase ever
Adreno 660
The highest clock speed is 840MHz, playing high-definition video, and running large-scale mobile games in full frames are all good things.
GPU performance improvement*
Snapdragon 888
Snapdragon 865
Better sustained performance
Compared with A77, the continuous performance is increased by 20%, and the power consumption is reduced by 50%. *
The sixth-generation Qualcomm AI engine
Video quality enhancement, super night scene algorithm, semantic recognition... Stable support for various AI applications.
Comprehensive computing power up to
Memory & Storage
LPDDR5 + UFS 3.1
smooth operation
has always been fast but not broken
Operation superimposed optimization speeds up, large-scale game loading and multi-file reading are completed instantaneously, and the global operation is smooth and
silky smooth.
Network Optimization
WiFi 6 enhanced version
2021 new WiFi standard
The network speed is twice as fast as the WiFi 6 standard version, and the maximum theoretical speed is up to 3.5Gbps. The actual test can
download a 1GB movie in 5.3 seconds , which is faster than the 5G network. *
Information transfer density is higher
Compared with the standard version, the bandwidth is doubled

* The WiFi 6 enhanced version data comes from Xiaomi Labs. Due to different test environments, the specific values ​​will be slightly different, and the actual situation shall prevail.

Equipped with a brand-new screen that surpasses the previous Redmi flagship, a new generation of E4 luminescent materials, a primary color screen.

True Tone professional screen experience, and a 2.76mm ultra-small center hole. All this make this screen and
all the different, not just rosy, still saving.
Ultra high contrast
Peak brightness
High dynamic image display
Wide color gamut
Reduced power consumption*
Dynamic compensation
This screen can be called "the best straight screen of the year." It has passed dozens of rigorous tests conducted by DisplayMate, the world's most authoritative screen evaluation agency, and its brightness, color accuracy, and contrast have reached high standards. It not only obtained an A+ rating, but also achieved 11 screen records in one fell swoop. *
"The K40 Pro's screen is unforgettable! The screen strength ranks among the world's top ranks,
close to textbook-like perfection. Various indicators and performance can be said to be flawless."
11 new records
Ultra-small form
2.76mm pinhole screen,
it may be the smallest hole in the world
Smaller mesopores make the field of vision more pure. When playing games, there is less occlusion and the experience is more friendly.
True color display

Hardware level with the color temperature sensor can accurately capture the color temperature of ambient light, so that the screen displays an exact match, along
slip regulation. Whether you are in a warm light cafe or a cold light office, you can automatically adjust to the best
color, giving you the most comfortable experience for your eyes.
Cold light environment
The color temperature of the screen becomes cool
Warm light environment
The color temperature of the screen becomes warm
Professional primary color screen
Designer-level color calibration
can be
on par with professional monitors
Front and rear double light perception
8192-level brightness adjusts its brightness
in the sun and in the dark
, always just right
Equipped with a light sensor more than ordinary mobile phones, making automatic brightness adjustment more accurate and agile. Strong light, dark
light, backlight, forward light, the screen can change with the light, the brightness change is more silky smooth, and it is clear at any time.
360° super light perception
Accurately capture ambient light
8192 levels of brightness adjustment
Adjust silky smooth
Luminous screen/Sunshine screen
Both dark light and strong light are clear
SGS Eye Care Certification
Blue light is greatly reduced
Game control optimization
The first 360Hz three-finger touch is
better than the opponent and fires a shot first
Gaming grade touch sampling rate, specifically optimized for FPS first person shooter game, with three fingers to open high-touch, shot and
fast and accurate.
Super resolution touch*
Drag casting is more accurate, and shooting is fast and steady
120Hz high brush
Delicate look and feel, smooth operation
X axis linear motor
Vibration feedback is real and rich
Game network optimization
Seamlessly cut the Internet in all scenarios, and
always be online at all times
WiFi → 5G to
go out with confidence, the game is constantly online
No Internet → 5G
second connection data network
Sound quality grand slam
Dolby Atmos

High-end surround sound experience
Dolby Atmos is a high-quality sound technology derived from theaters and has been widely favored
and praised by top film practitioners since its launch . Excellent sense of space, 360 ° full surround, let you create immersive sound, more stunning of
heavy bass, natural and real.
Stereo dual speakers
Immersive external sound experience
Dual Bluetooth technology
Good music, listen to it together

High resolution

Wireless audio certification


High resolution

Audio certification

The 100 million pixel high-definition main camera
close-up and long-distance are
all detailed control
K40 Pro + is equipped with a night view camera megapixels, up to 12,000 * 9000 amazing resolving power of each Chang
films, has several times the normal camera image information, and each time the shutter is the high level Redmi images,
as well as K40 Pro The 64MP version is available.
The third generation 100 million pixel photosensitive element
1/1.52'' outsole
Large photosensitive area, more light input
Not only the main camera,
other lenses also shine
Ultra wide-angle lens
Look a little bit, then go a little bit
Telephoto macro lens
See the big from the small, see the unseen
Front portrait lens
The beauty plan is right
Super night scene mode
Born for night scenes , handy
for taking photos or videos
After 9in1 binning, pixels up to 2.1μm, with
double native ISO and Super Night 2.0 algorithm, as the night
the King re-energize creation, so the video under low-light shooting,
the picture brightens while retaining more details, night view of the
beautiful are Can be clearly recorded.
9 in 1
Pixel Fusion Technology
Large pixels, capture more light
Dual native ISO
Dark light has details, highlights are not exposed
Super night view 2.0
Professional noise reduction in RAW domain
50mm telephoto macro

A day in the microcosm of "microscopic" time-lapse photography
is also a magnificent epic
The ultra-close-range shooting of 3-7 cm, like a "microscope", allows you to easily capture the
romantic details of life .
Computational photography
overweights your first film work
AI special effects video
Reshaping the charm of ordinary images, and creating a new level of creativity.
Freeze-frame clone
Now you can easily get the shadow avatar in the two-dimensional world.
Time stands still
In the complex world, if you steal a moment of stillness, what creativity can you play?
8K video recording
Resolution 7680 × 4320
can be cropped at will to ensure the post effect
8 movie filters
Master movie tones
can be obtained with one click
Movie frame
2.39 :1 wide-format
movie texture
Video tag
It is
more convenient to mark key positions

Take a side fingerprint to wake up the health treasure to
wake up more and more convenient
Rigorous factory testing*
It is one in ten thousand possible, and
has experienced tens of thousands of times.
Double-sided GG5 glass
Double-sided covering, wear-resistant and non-slip,
bring better protection for the whole machine.
IP53 waterproof and dustproof
The whole machine has a nano-life splash-proof coating, and
comes with a "raincoat" every day.
Senses, interaction, privacy, all
aspects are thoughtful and thoughtful.
Multifunctional NFC
Infrared remote control
Three-frequency Beidou positioning


  • Qualcomm Snapdragon™ 888
  • new generation E4 flagship straight screen
  • 100 million pixel night view camera*
  • Dolby Atmos *
  • High brush, super touch gaming experience
  • WiFi 6 Enhanced version
  • 7.8mm thin and light design丨4520mAh large battery
* K40 Pro+ main camera lens is 108MP, K40 Pro main camera lens is 64MP.
* Dolby Atmos is updated with OTA, the time is the end of March 2021.

physical dimension

Length: 163.7mm
Width : 76.4mm
Thickness: 7.8mm
Weight: 196g

*The above data is the test data of one meter laboratory. The actual results may vary slightly according to different measurement methods in the industry.


mobile platform

Qualcomm Snapdragon™ 888

CPU architecture technology: Kryo 680 architecture, 5nm process
CPU frequency: eight-core processor, the highest frequency can reach: 2.84GHz
GPU: Adreno 660 graphics processor, the highest frequency can reach 840MHz
AI: the sixth-generation Qualcomm AI engine

Memory and capacity

12GB + 256GB up to optional

Operating memory: 6GB / 8GB / 12GB
LPDDR5 high-speed memory (6400Mbps)
Body storage: 128GB / 256GB
UFS 3.1 high-speed storage

* The actual available capacity will be reduced and different due to many factors: because the operating system occupies part of the memory (RAM), the actual available space is less than the identified memory capacity; because the operating system and pre-installed programs occupy part of the flash memory (ROM) ), the actual available storage space is less than the marked flash memory capacity.

screen display


Size: 6.67 inches
FHD+ Resolution: 2400 x 1080
Display Frame Rate: Up to 120Hz Refresh Rate
Touch Sampling Rate: Up to 360Hz
Primary Color Screen丨True Tone丨8bit丨MEMC Frame Rate Compensation丨SGS Eye Care Certification丨Sunshine Screen 3.0
Contrast 5,000,000: Shu HDR10 + 1
peak brightness: 1300nit
wide standard luminescent material E4 Samsung
Corning ®️ 5th generation gorilla ®️ glass

Imaging system

K40 Pro+: rear 100 million pixel triple camera

100 million pixel ultra-clear main camera: 1/1.52" super-large sensor丨support 9in1 2.1μm large pixel output丨7P丨f/1.75 large aperture

119° ultra-wide-angle lens: 8MP丨f/2.2 aperture

5 megapixel telephoto macro lens

K40 Pro: rear 64 million pixel triple camera

64 million pixel ultra-clear main camera: 1/1.7" sensor丨support 4in1 1.6μm pixel output丨6P丨f/1.89 aperture

119° ultra-wide-angle lens: 8MP丨f/2.2 aperture

5 megapixel telephoto macro lens

AI watermark丨cute photo丨magic clone丨freeze-frame clone丨document shooting mode丨AI camera丨ID card photocopying mode丨livephoto丨ultra-wide-angle distortion correction algorithm丨portrait beauty丨film resolution丨film light effect (camera)丨Super night scene丨Street shooting mode丨Continuous focus丨Face recognition丨Digital zoom丨Professional raw format丨Multi-frame noise reduction丨Video HDR丨Front and rear dual scene丨Time-lapse photography丨Video-movie resolution丨Voice to subtitles丨Video tags丨Taking photos while recording丨Video pause丨Video beauty丨Video filters丨Filters-Portrait color retention丨Video blur

8K video recording:30fps
4K video recording:30/60fps
1080p video recording:30/60fps
720p video recording:30fps
1080p slow motion video shooting:120/240 / 960fps
720p slow motion video shooting:120/240 / 960fps

Front 20 million ultra-clear camera

AI watermark丨cute shooting丨voice shutter丨front night view丨timed photo丨movie resolution丨screen fill light丨AI separation of scenes丨face recognition丨livephoto丨AI beauty丨volume key countdown photo丨portrait mode丨Film light effect (camera)丨Wide-angle (portrait perspective) distortion correction algorithm丨Front panorama丨Multi-frame noise reduction丨Video HDR丨Front and rear dual scenes丨Time-lapse photography丨Video-film resolution丨Voice to subtitles丨Video tags丨Take a picture while recording丨Video pause丨Video beauty丨Video filter丨Filter-Portrait color丨Video blur

1080p video recording:30fps
720p video recording:30fps
720p slow motion video shooting:120fps

Battery life charging

4520mAh (typ)
built-in lithium-ion polymer battery, non-removable
USB Type-C double-sided charging interface. The
phone supports QC3+ / PD3.0 fast charging protocol. The
standard 33W charger is compatible with PD charging protocol.

Network frequency band

SA/NSA Dual Mode丨Dual SIM丨Full Netcom 7.0

Support dual-card unlimited operators, both primary and secondary cards can use 5G

Support Dual Nano-SIM card slot, dual-card operators can not in 5G network ①
Support Mobile / Unicom / Telecom 5G / 4G / 3G / 2G ②
support 5G dual-card dual-mode SA / NSA (Sub-6G) ③
Support Dual SIM VoLTE HD Voice ④

Note①: Whether to support 5G depends on the local operator's network; when using two telecom cards, the secondary card can only be registered on the telecom VoLTE network. If the secondary card or the local network does not support the telecom VoLTE service, it cannot be used;
Note②: Not supported TD-SCDMA standard (mobile 3G);
Note ③: Whether SA/NSA is supported depends on the local operator’s network and service deployment, and the secondary card SA function is supported through OTA upgrade;
Note ④: It supports VoLTE services of China Mobile/Unicom/Telecom. Actually The usage depends on the operator's local network and service deployment; support frequency band

Support frequency band

5G: n1 / n3 / n28A / n41 / n77 / n78

Note: The actual network and frequency band usage depends on the deployment of local operators, n1 and n3 need to be supported by the operator through software upgrades after release. n28A (Tx: 703-733MHz, Rx: 758-788MHz)

4G: FDD-LTE: B1 / B2 / B3 / B4 / B5 / B7 / B8 / B12 / B17 / B18 / B19 / B20 / B26 / B28A
TDD-LTE: B34 / B38 / B39 / B40 / B41 / B42

Note: LTE B41 (2496-2690MHz); LTE B28A (Tx: 703-733MHz, Rx: 758-788MHz)

3G: WCDMA: B1 / B2 / B4 / B5 / B6 / B8 / B19; CDMA EVDO: BC0 2G: GSM: 850/900/1800
/ 1900MHz; CDMA 1X: BC0

Data Connections

WLAN protocol: WiFi 6 enhanced version, WiFi 5, WiFi 4 and 802.11a / b / g
WLAN frequency: 2.4G WiFi | 5G WiFi
supports 2x2 MIMO, 8x8 Sounding for MU-MIMO, WiFi Direct, Miracast, 2.4G, 5G dual Concurrent
Bluetooth: Bluetooth 5.2
supports AAC / LDAC / LHDC

Multifunctional NFC

After the Tianxing Finance·Wallet App is activated, you can use traffic card, Mi Pay, door card, eID*, electronic car key* and other functions by double-clicking the power button.
Transportation card: support 300+ cities, support 40+ types of public transportation cards* transfer cards, support free old card transfer to new machine and simultaneous transfer of card balance.
(Transport card support cities due to differences in technical conditions, cities, etc., subject to actual conditions; the available range of credit card terminals and ride discounts are subject to the announcements of local governments and operating companies.)
Mi Pay: Support online payment, offline Payment, UnionPay QR code, UnionPay card payment, UnionPay one-touch payment.
Door card: door card simulation, Mijia smart door lock, virtual door card, custom blank card. (Only unencrypted door cards with a frequency band of 13.56 MHz can be simulated. Bank cards with door card functions and door cards with stored-value consumption, bus consumption and other functions cannot be simulated temporarily. Even if the simulation is successful, these cards will not be simulated. Possess functions such as bank, bus;)
Smart card selection: Smart switch between door card and transportation card.
The specific number of cities supported, city names, banks, number of cards, eID partner hotels list, electronic car key partner models, etc., are subject to actual conditions. For further information, please pay attention to:
"Xiaomi Wallet (to be upgraded to "Sky Star Financial Wallet")" official WeChat public account; For
information on devices and versions supported by smart card selection , please learn more:

Navigation and positioning

Beidou: B1I + B1C+ B2a丨GPS: L1 + L5丨Galileo: E1 + E5a
AGNSS: A-GPS丨A-GLONASS丨A-BDS丨Data network positioning丨Wi -Fi network positioning丨sensor assisted positioning

Video audio

Hi-Res Audio certification丨Hi-Res Audio Wireless certification丨Dolby Atmos*丨Stereo dual speakers
MP4, MKV, AVI, WMV, WEBM, 3GP , ASF playback
supports HDR10/10+ video

* Dolby Atmos is updated with OTA, the time is the end of March 2021.


Ultrasonic Distance Sensor | 360° Ambient Light Sensor | Acceleration Sensor | Gyroscope | Electronic Compass丨X-axis Linear Motor | Infrared Remote Control丨Color Temperature Sensor丨Barometer

operating system


packing list

Mobile phone host 丨 power adapter 丨 USB Type-C data cable 丨 mobile phone protective shell 丨 film (covered on the screen) 丨 pins 丨 instructions (including three packs of certificates)

*This list is only for the package of the whole machine. According to different sales packages, the accessory packages provided outside the package of the whole machine are slightly different, and the user's choice at the time of purchase shall prevail.

Special Note:

1. In terms of memory and capacity, the actual usable capacity will be reduced and different due to many factors: because the operating system occupies part of the memory (RAM), the actual usable space is less than the identified memory capacity; due to the installation of the operating system and pre-installed programs Occupies part of the flash memory (ROM), and the actual available storage space is less than the capacity of the identified flash memory.

2. The screen diagrams and product description display diagrams provided on this website are all reference diagrams, and the actual situation is subject to the actual product.

3. Product pictures, models, data, functions, performance, specifications, user interfaces, and other product information are for reference only. Redmi may improve the above content. For specific information, please refer to the actual product and product manual. Unless otherwise specified, the data involved in this website are the results of Xiaomi's internal testing, and the comparisons involved are all compared with Redmi products.

4. The general mobile phones compared on the page are all Redmi's own mobile phones. The product site does not specifically point out that it is provided by our laboratory data, design technical parameters and suppliers. The actual data of the whole site will be slightly different due to different test software versions, specific test environments, and specific versions. The structural pictures displayed on the whole site are all functional schematic diagrams, not the absolute actual structure, and the actual product shall prevail.

* Performance, rendering, AI computing power and A78 improvement data are from Qualcomm's official website: https://www.qualcomm.cn/snapdragon

* 30% increase in CPU peak performance refers to Cortex X1 compared to A77, and 35% increase in GPU performance refers to Adreno 660 compared to Adreno 650.

* Compared with the previous generation E3 material, the power consumption of E4 material is reduced by 15%.

* DisplayMate A+ rating information comes from DisplayMate official website: www.displaymate.com.

* Power on and upgrade MIUI, you can experience super-resolution touch.

* Dolby Atmos is updated with OTA, the time is the end of March 2021.

* The charging data comes from Xiaomi Labs, the actual results may vary slightly depending on the environment.

* Power on and upgrade MIUI, you can enjoy the convenience of double-clicking on your fingertips (double-clicking the back or tapping the fingerprint side button) to call up the health code.

* Before each batch of products leave the factory, some mobile phones will be randomly selected and undergo extremely rigorous factory testing.

* The product site is not specifically pointed out, it is our laboratory data, design technical parameters and data provided by suppliers. The actual data of the whole site will be slightly different due to the test software version, the specific test environment, and the specific version. The structural pictures displayed on the whole site are all functional schematic diagrams, not the absolute actual structure, and the actual product shall prevail.

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Questions (1)

From Tadeusz Sacha | 2021-11-29 04:12:10

What is return item policy if description is no true?


Hi, you may find it here:


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