Xiaomi Redmi K40 Gaming

Display6.67" 1080 x 2400 pixels
ChipsetMediatek Dimensity 1200 (6 nm)
Main camera64MP
Battery5065 mAh
Redmi K40 Gaming product photo
7.2GoSolo score

Network

Technology
GSM / CDMA / HSPA / CDMA2000 / LTE / 5G
2G bands
GSM 850 / 900 / 1800 / 1900
3G bands
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands
1, 2, 3, 4, 5, 7, 8, 18, 19, 26, 34, 38, 39, 40, 41, 42
5G bands
1, 3, 28, 41, 77, 78 SA/NSA/Sub6
Speed
HSPA, LTE, 5G

Launch

Announced
2021, April 27
Status
Available

Body

Dimensions
161.9 x 76.9 x 8.3 mm (6.37 x 3.03 x 0.33 in)
Weight
205 g (7.23 oz)
Build
Glass front (Gorilla Glass 5), glass back (Gorilla Glass 5)
SIM
Nano-SIM + Nano-SIM
Durability
Physical pop-up gaming triggers IP53 dust protected and water resistant (vertical water sprays)

Display

Type
OLED, 1B colors, 120Hz, HDR10+, 500 nits (typ)
Size
6.67 inches, 107.4 cm2 (~86.3% screen-to-body ratio)
Resolution
1080 x 2400 pixels, 20:9 ratio (~395 ppi density)
Protection
Corning Gorilla Glass 5

Platform

OS
Android 11, MIUI 12.5
Chipset
Mediatek Dimensity 1200 (6 nm)
CPU
Octa-core (1x3.0 GHz Cortex-A78 & 3x2.6 GHz Cortex-A78 & 4x2.0 GHz Cortex-A55)
GPU
Mali-G77 MC9

Memory

Card slot
No
Internal
128GB 6GB RAM, 128GB 8GB RAM, 128GB 12GB RAM, 256GB 8GB RAM, 256GB 12GB RAM
Type
UFS 3.1

Main Camera

Modules
64 MP, f/1.7, 26mm (wide), 1/2.0", 0.7µm, PDAF 8 MP, f/2.2, 120˚ (ultrawide) 2 MP (macro)
Features
Color spectrum sensor, Dual-LED flash, HDR, panorama
Video
4K@30fps, 1080p@30/60/120fps, 720p@960fps, HDR

Selfie Camera

Module
16 MP, f/2.5, (wide), 1/3.06" 1.0µm
Features
HDR · 1080p@30fps, 720p@120fps, HDR

Sound

Loudspeaker
Yes, with stereo speakers
3.5mm jack
No

Comms

WLAN
Wi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct
Bluetooth
5.2, A2DP, LE
Positioning
GPS (L1+L5), GLONASS (G1), BDS (B1I+B2a), GALILEO (E1+E5a), QZSS (L1+L5), NavIC
NFC
Yes
Radio
No
USB
USB Type-C 2.0, OTG

Features

Sensors
Fingerprint (side-mounted), accelerometer, gyro, compass, barometer

Battery

Type
Li-Po 5065 mAh
Charging
67W wired, PD3.0, QC3, 100% in 42 min

Misc

Colors
Black, Gray, Silver, Bruce Lee Yellow
Models
M2012K10C, M2104K10AC
GoSolo Read / what it means6 takeaways
performance
Dimensity 1200, Mali-G77 MC9Handles mid-tier games like PUBG Mobile and Genshin Impact at high settings, roughly 60 fps with occasional dips in demanding scenes.
display
6.67-inch OLED, 120Hz, 500 nitsLarge, smooth scrolling and gaming screen that stays readable in bright sunlight, though not the brightest phone you can buy in this class.
battery
5065 mAh, about 1 day heavy useFull day of mixed use (scrolling, gaming, video) is feasible, though intensive gaming will push you toward evening.
charging
67W wired, roughly 45 min to fullFast charge gets you from empty to 100% in under an hour, the stated 42 minutes assumes ideal conditions.
camera
64MP main, f/1.7, 120° ultrawideMain sensor captures sharp daylight shots and handles low light reasonably well; ultrawide lens lets you fit wide group shots or landscapes without stepping back.
durability
Gorilla Glass 5, IP53 ratingScreen is scratch-resistant, but glass back and sides mean it needs a case; IP53 protects against dust and vertical water splashes, not submersion.
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