Xiaomi Redmi K40 Gaming 12GB+256GB White

SKU redmi-k40-gaming-12g
Location: Asia
Possibility to return: Yes, within 14 days to warehouse in USA / UK or EU
Length of warranty 12 months
Warranty Extension: At promotional terms, up to 24 months (during checkout)
Dual Sim Yes
5G Yes
Rom: Global or Original (Chinese+English) - select above
Processing time for warranty service from 6 weeks
Processing time for warranty repair to 12 weeks
Unavailable - order on demand
$ 409.99
No tax included
We accept PayPal
Device rom
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Frequently Asked Questions

Yes, this is Chinese product with Global rom installed, it'll have English language with Google apps. More about specific of Global rom on this device you can check here:


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

It is Redmi's first gaming phone.
It is about to open a new standard for "gaming phones."

[Daily as the main flagship]
It is equipped with a new generation of
Dimensity 1200 processor, OLED flexible straight screen, 5065mAh large battery, 67W flash charging, 64MP flagship triple camera, light and thin, and a flagship model in all aspects.

[Game turned into a game phone]
Pop-up shoulder buttons, 11540mm² space heat dissipation, 120Hz high brush high touch,
independent game antenna set, and JBL dual BOX stereo. Hard-core strength will help you get your full combat power at any time.

The K40 Gaming Enhanced Edition
is a thin and light flagship main machine, and it is also a gaming phone.
Everything is only for you who love the game, all the expectations.
Dimensity 1200
flagship processor of the year
Performance improved by 22%, power consumption reduced by 25%! *
TSMC's 6nm process, which effectively balances performance and energy consumption,
and the powerful combination of A78 super core, it is easy to do in games or in daily life.
Advanced technology process
A new generation of ultra-large nuclear architecture
Antutu V9*
twenty two%
Comprehensive performance improvement
Dimensity 1200
Dimensity 1000+
Reduced power consumption
Dimensity 1200
Dimensity 1000+
German Rhine T Ü V
high-performance gaming certification

After 4 major dimensions, 40 tests, and
high scores, it guarantees an outstanding gaming experience.

*Please go to the APP for details
*The picture is only for creativity.

Aerospace three-dimensional heat dissipation
Hot blood goes online, temperature goes offline
Innovative application of aerospace heat dissipation material hexagonal boron nitride (aerospace graphene) to mobile phones, and aerospace
Graphene, graphite, and VC are strongly combined to achieve an amazing 11540mm² heat dissipation area,

Aerospace graphene'' is a low dielectric and high thermal conductivity used in rocket jet ports
material. Thanks to its "low dielectric" feature, the antenna temperature can be controlled
At the same time, it does not block the 5G signal and can perfectly cover the antenna area.
Aerospace composite integrated heat dissipation film

Break through the "antenna restricted zone"
Redmi continues to explore for efficient heat dissipation, combining aerospace graphene with traditional graphite
Combining to create an exclusive new heat dissipation technology: aerospace composite integrated heat dissipation film,
Overcome the industry problem that heat dissipation materials cannot enter the antenna area.

Independent gaming antenna group
Hardware-level 360° true anti-lock
The signal of this gaming phone is really strong! Twelve antennas are arranged in a compact arrangement, covering the entire body.
Added independent game antenna, double waist design, no dead angle in signal regardless of horizontal or vertical grip,
Realize a gaming network that surpasses professional e-sports mobile phones!
*The picture is for illustration only, and the antenna position is subject to the actual situation.
Double waist antenna design
Hold horizontally and vertically, both signals are available
Added a dedicated WiFi antenna for gaming, and 4G/5G/WiFi at the waist
The antennas together form a dual-waist antenna layout. Strengthen the network under horizontal screen games
Performance, high-speed internet connection is guaranteed at all times.
*Incoming calls will not be disconnected from the Internet 3.0, only the main card 5G/4G network, the incoming call will not be disconnected.
Third-generation games, online
games and calls, without delay
The new generation of "Incoming Calls 3.0"*, in the dual card mode, you can play games
and make calls at the same time without conflict.
Pop-up shoulder buttons are
like holding a gamepad
Without a shoulder button, how can it be called a gaming phone! K40 game enhanced version, the start is the top plan: pop-up shoulder button.
The feedback is crisp, pressing the soul through the real battlefield. Open four fingers at the same time, raise the gun to aim and shoot once in place. Pop-up shoulder buttons
make people a game master.
Can be adapted to the latest game at any time, the
same game can be set according to your preferences

Horizontal grip the phone while playing
open shoulders keys, automatic feed
into the "game space."

Select a game, set want
to map key skills.

Have fun and win.

The industry's best solution for
miniaturized mechanical shoulder keys
Special research and development and customization, from the internal structure scheme to the appearance design,
exquisite and durable, with a very mechanical feel.
Magnetodynamic structure design
1.5 million quality measurements
Enjoy the game spree when you buy it
Purchase the K40 Game Enhanced Edition, and
you can instantly enjoy a game spree worth 300 yuan!
Limited to 100,000 copies, on a first-come, first-served basis, while stocks last.
*Please go to the APP for details
X-axis linear motor
4D vibration, better than presence
Equipped with X-axis linear motor, with MIUI 12.5 in-depth vibration adjustment,
every touch is real feedback, and you can experience the real "battlefield" at your fingertips.
*The authorization screen is from the mobile game "Peace Elite".
Support "Peace Elite"
high-quality vibrancy
4D game vibration, over 200 vibration effects, and
different feedbacks for different gun-type vehicles.
RAZER™ authorized
as the "mechanical keyboard" in mobile phones
Game Turbo 5.0
accelerates your victory
Contains a variety of practical game gadgets to accelerate your victory.
High energy moment
Record the exciting process of the game, remember the operation at any time
Tactical sight
A variety of front sights are available, so you can shoot with confidence
Tactical countdown
Countdown to the resurrection time, don’t miss the battle
OLED flexible direct screen
opens a wider horizon for the game world
A better straight screen, specially built for you who love to play games. Make straight screen with a flexible screen, industry-recognized expensive solution,
but it can bring a more purely visual experience, the three narrow side, small chin, regardless of the game or perceptions are excellent table
now, there is a high 120Hz high-touch brush Control, 1.07 billion colors display everything. A great experience just for your vision and control.
Ultra high contrast
High refresh rate
Professional wide color gamut
High dynamic image display
1.8mm ultra-narrow bezel
2.7mm ultra-small chin
Adopting a new generation of COP flexible screen packaging technology, bringing a narrower
frame and smaller chin*. The vision is pure, the gaming experience is better.
1.07 billion colors show that
every eye is stunning
The color tolerance is higher, the color gradation transition is more delicate, and it
supports HDR10+, DCI-P3 color gamut, no matter whether it is dynamic or static,
every frame of picture, every eye is amazing.
8192-level automatic brightness adjustment
is clear in strong light, comfortable in dark light
The front and rear dual light sensing elements sensitively capture the changes in the surrounding light source, allowing you
to feel the delicate adjustment of brightness regardless of the strong light, dark light, or backlight environment, and you will not be tired for a long time.
480Hz three-finger touch,

no matter how fast the opponent is, the hand speed can keep up
E-sports-grade touch sampling rate, shooting fast and accurate.
In use, you will feel that the screen is more sensitive and follow-up, and
various moves will be triggered at once, helping you to refresh the record.
Super-resolution touch
control accuracy increased by 6 times
The real battlefield heard by the "JBL" on the phone
Redmi and JBL professional acoustics team work in depth to adjust the
professional acoustic system and work together to restore the true sense of sound.
Open, full-bodied, true, and delicate, and hear the vitality of music.

Sound quality certification grand slam
High-end surround sound experience
High-resolution audio certification
High-resolution wireless audio certification
Closed double independent large sound chambers are
in line with professional audio
The closed double BOX design only available in professional audio, the low-frequency dive is powerful, the human voice is clear and
natural, and the high-frequency details are rich, creating a sense of space for the sound, real and stable.
3MIC unobstructed voice design for
fierce fighting moments, stable conversations
New waist MIC, let you loving the game, even when the phone is held horizontally, do not
worry about their own radio is blocked. Cooperate with the team, and the dialogue and instructions are clear.
64MP flagship triple camera
day and night, the masterpiece begins
Innovative use of
ED ultra-low dispersion optical glass lens
When we start to understand the art of photography, we will find that the greater the amount of light, the
better the picture quality . So we will have a professional camera lenses used in optical glass hand
dryer. Compared with traditional lenses, optical glass lenses can greatly increase the amount of light,
improve image quality while effectively solving glare problems, ensuring that your night scenes are
bright, transparent, and rich in details.
Larger aperture
75 Abbe number
Dispersion control more
8-layer coating
Reduce lens glare
Higher light transmittance
glass-plastic hybrid lens
all plastic lens
*Professional mode, fixed exposure time and ISO
  • section9-4-1.jpg
    Super night view
    Make the night better
  • section9-4-2.jpg
    HD main camera
    The more the world looks, the better it looks
  • section9-4-3.jpg
    Macro lens
    Surprises are hidden in the details
  • section9-4-5.jpg
    Front portrait lens
    Face to face with a better self
  • section9-4-6.jpg
    Ultra wide-angle lens
    Used to big scenes
A masterpiece of movie camera , born with one click
With the support of powerful AI computing power, whenever and wherever you pick up this enhanced version of the K40 game, you can satisfy your creative desires with one click.
8 movie filters
Take masterpieces with one click
Rear dual-camera video blur
At the hardware level, everything can be virtualized
Front and rear HDR video
Support real-time preview recording
AI smart shutter capture
Real-time recognition of moving objects,
intelligently matching shutter speed
Vlog draft box
Shoot anytime, save anytime, edit anytime
Magic Change
Have a good mood every day
Not as thin and light as a
" gaming phone"
Can you imagine? The gaming phone can also be light and thin, with super performance, super power,
efficient heat dissipation, full-speed screen...all hidden in the ultra-thin
body of this K40 game enhanced version of only 8.3mm . It is truly a gaming phone, and it is also a thin and light flagship main machine.
"Pulse" ambient light
Notification breathing light丨E-sports environment light
supports 16 million color display*
"Raiden" flash
When taking pictures, it illuminates you in the dark. For
daily use, it is a unique and cool decoration.
67W flash charge
charging rate large upgrade
First flash mounting 67W Redmi charge, "+ wings dual charge pump layout" design, the charging speed
of the faster 42 minutes to charge to 100% *, with a large battery 5065mAh, dried slowly,
charge quickly, enjoy the game, not Worry about the battery again.
Customized L-shaped charging cable
is more comfortable while playing and charging
An L-shaped charging cable is included with it, so you can charge it while playing, and feel comfortable to hold.
Rigorous factory testing*

Experience tens of thousands of times for one in ten thousand
Double-sided GG5 glass
Double-sided coverage, wear-resistant and non-slip,
bring better protection to the whole machine
IP53 dustproof and waterproof
Nano life splash-proof coating
comes with "invisible raincoat"
MIUI 12.5
Senses, interaction, and privacy have taken a
leap again
Infrared remote control
Multifunctional NFC
Dual frequency GPS
Memory version:
12GB + 256GB
K40 Bruce Lee Special Edition
Whether it is Bruce Lee or the enhanced version of the K40 game, as long as you work hard for your love, you will definitely win.
The enemy is stronger, I am stronger, the enemy is mad, I am even more mad, the competitive spirit is immortal, and the combat power in the palm of the hand is rekindled.
Limited to 4000 units worldwide
Redmi is a technology brand for young people under the Xiaomi Group. Young Global aims to
create high-quality people, and has a flagship experience than-expected mobile phone and intelligent hardware products. Kennedy
hold "desperate passion" brand philosophy, with young people the world stand together. Have the same
kind of love for the spirit of Wang Yibo, it is Redmi mobile phone brand global spokesperson.
  • Dimensity 1200
  • pop-up shoulder button
  • 11540mm² Aerospace three-dimensional heat dissipation
  • JBL stereo dual speakers
  • 8.3mm thin, 205g light
  • 5065mAh high power
  • 67W flash charge
  • 64MP flagship three-camera
  • 120Hz OLED flexible straight screen

physical dimension

Length: 161.94mm
Width: 76.93mm
Thickness: 8.3mm
Weight: 205g

*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

Dimensity 1200

CPU architecture technology: Cortex A78 architecture, 6nm process
CPU frequency: three-cluster eight-core processor, the highest frequency can reach: 3.0GHz
GPU: 9-core ARM Mali graphics processor, the highest frequency can reach
886MHz AI: 6-core APU3 .0

Memory Capacity

12GB + 256GB up to optional

Operating memory: 6GB / 8GB / 12GB
LPDDR4x high-speed memory (4266Mbps)
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
Type: OLED flexible direct screen
Resolution: 2400 x 1080 (FHD+)
Display frame rate: up to 120Hz
Touch sampling rate: up to 480Hz Three-finger
brightness: 500nit (typical value)
Contrast ratio 5,000,000:1
1.07 billion colors丨DCI -P3 Shu Shu 8192 HDR10 + brightness adjustment
Corning ®️ 5th generation gorilla ®️ glass

Imaging system

Rear 64 million pixel triple camera

64 million pixel ultra-clear main camera: 1/2" large sensor 丨 support 4in1 1.4μm pixel output 丨 1G + 5P glass-plastic hybrid lens 丨 f/1.65 aperture

120° ultra-wide-angle lens: 8 million pixels丨f/2.2 aperture

2 million pixel macro lens丨f/2.4 aperture

AI watermark丨cute shooting丨magic clone丨freeze clone丨document shooting mode丨AI camera丨ID card photocopying mode丨livephoto丨portrait beauty丨movie resolution丨super night scene丨street shooting mode丨continuous focus丨face Recognition丨Digital zoom丨Professional raw format丨Video HDR丨Dual view of front and rear丨Time-lapse photography丨Voice to subtitles丨Video tag丨Photograph while recording丨Video pause丨Video beauty丨Film filter丨Dual-camera video blur

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

Front 16 million HD camera

AI watermark丨cute shooting丨voice shutter丨front night scene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Front panoramic view丨Video HDR丨Front and rear dual scenes丨Time-lapse photography丨Voice to subtitles丨Video tags丨Taking photos while recording丨Video pause丨Video beauty丨Film filter丨Video blur

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

Battery life charging

5065mAh (typ) min value 4965mAh
built-in lithium-ion polymer battery, non-removable
USB Type-C double-sided charging interface The
phone supports QC3+ / PD3.0 fast charging protocol
Standard 67W charger, compatible with PD charging protocol
L-type data cable

Network frequency band

SA/NSA dual mode丨dual card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

Note ①: Whether to support 5G depends on the local operator's network; when two telecom cards are used, 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;
Note ②: 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 the VoLTE service 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 / B18 / B19 / B26
TDD-LTE: B34 / B38 / B39 / B40 / B41 / B42
Note: LTE B41 (2496-2690MHz)
3G: WCDMA: B1 / B2 / B4 / B5 / B6 / B8 / B19; CDMA EVDO: BC0 2G: GSM: 850/900/1800
/ 1900MHz; CDMA 1X: BC0

data links

WLAN protocol: WiFi 6, WiFi 5, WiFi 4 and 802.11a / b / g
WLAN frequency: 2.4G WiFi | 5G WiFi
supports 2x2 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 opened, you can use traffic card, Mi Pay, door card, eID*, 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 and 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 APP payment, online Swipe the card, UnionPay QR code payment, UnionPay label one-touch payment.
Door card: physical door card, smart door lock, community door card, custom blank card. (Only door cards with 13.56MHz frequency band can be simulated, bank cards with door card functions, and door cards with functions such as stored value consumption and public transportation consumption, even if the simulation is successful, these cards do not have banking, public transportation and other functions)
Specific support The number of cities, city names, banks, number of cards, eID partner hotels list, car key partner models, etc. are subject to actual conditions. For further information, please follow the official WeChat account of "Sky Star Financial Wallet", or refer to (https://www.mipay.com)

Navigation and positioning

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

Video audio

JBL Audio quality certification丨Hi-Res Audio certification丨Hi-Res Audio Wireless certification丨Dolby Atmos丨Two stereo speakers
MP4, MKV, AVI, WMV, WEBM, 3GP, ASF playback
support HDR10/10+ video


Ultrasonic distance sensor | 360° ambient light sensor | acceleration sensor | gyroscope | electronic compass丨X axis linear motor | infrared remote control

operating system

MIUI 12.5

packing list

Mobile phone host丨Power adapter丨USB Type-C L-type data cable丨Mobile phone protective shell丨Film (covered on the screen)丨PIN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 available 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 pictures and product description display pictures 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.

*The running score data comes from Xiaomi Labs. Due to different test environments, the specific values ​​will be slightly different, and the actual situation shall prevail.
*Compared with Dimensity 1000+, the data comes from Xiaomi Labs. Due to different test environments, the specific values ​​will be slightly different, subject to actual conditions.
*Incoming calls will not be disconnected from the Internet 3.0, only the main card 5G/4G network, the incoming call will not be disconnected.
*The measurement data comes from the Xiaomi laboratory. Due to different measurement environments, the specific values ​​will be slightly different, and the actual situation shall prevail.
*User-defined colors need to be implemented by OTA at the end of June 2021.
*Charging time data comes from Xiaomi Labs. Due to different test environments, specific values ​​will be slightly different, subject to actual conditions.
*Before each batch of products leaves the factory, some mobile phones will be randomly selected and undergo extremely rigorous factory testing.
*The general mobile phones compared on the page are Redmi's own mobile phones. The product site does not specifically point out that it is our laboratory data, involving technical parameters and data provided by suppliers. The actual data of the whole site
will be slightly different due to different versions of the test software. 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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