Score from 10
4.7

Xiaomi Redmi K40

Score

Camera
5.4
Performance
6.8
Screen
3.6
Battery
3.4
Connectivity
5.7
Appearance
6.7
Futures
5.1

Pros and cons

GoodNothing
NormalCamera, Performance, Connectivity, Appearance, Futures
BadScreen, Battery

Xiaomi Redmi K40 specifications


BrandXiaomi
Model
Redmi K40
M2012K11AC
HAYDN
M2012K11G
CategoryMobile phones
CountryChina
Weight196 grams
Density386 ppi
Memory size6 Gigabytes
Battery capacity4520 mAh

Width76.4 milimeters
Height163.7 milimeters
Thickness7.83 milimeters
Weight196 grams
MaterialsPlastic, Glass, Splash resistant design
ColorsBlack, White, Blue
Effective area85 percents
Resistance certificate
Operating systemAndroid 11
InterfaceMIUI V12
Google playNo

Screen typeOledSamsung E4
Screen futuresHole-punch Notch, Refresh rate 120 Hz, Touch sampling rate 360 Hz, 5000000:1 contrast ratio, HDR10, DCI-P3, True Tone display, MEMC, Scratch resistant, 2.5D curved glass screen, Corning Gorilla Glass 5, Capacitive, Multi-touch, Frameless
Aspect Ratio20 : 9
Screen resolution1080 x 2400
Resolution typeFHD
Density386 ppi

Audio futuresDolby Atmos, Hi-Res Audio, Stereo Speakers
Headphone JackNo
RadioNo

NFCYes
Voice over LTEYes
PC syncYes
OTA syncYes
InfraredYes
TetheringYes
Sim cardsDual SIM
Wi-Fi standards802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5GHz, 802.11ac
Wi-Fi futuresDual band, Wi-Fi Hotspot, Wi-Fi Direct, Wi-Fi Display, Wi-Fi MiMO
Bluetooth versionBluetooth 5.2
NavigationGPS, A-GPS, GLONASS, Beidou, QZSS, Galileo, NavIC System

Memory size6 Gigabytes
RAM typeRAM LPDDR5
CPU nameQualcomm Snapdragon 870
CPU cores
GPU nameQualcomm Adreno 650

Storage size128 Gigabytes
ROM typeUFS Storage 3.1
Card slotNo
Slot typeIndependent SD slot

Battery capacity4520 mAh
Battery typeLi-Polymer
Battery futuresNon-removable, Supports QC3, / PD3.0 fast charging protocol
USB Type CYes
Fast chargeYes

FingerprintYes
Fingerprint locationOn the side
ProximityYes
Light sensorYes
AccelerometerYes
GyroscopeYes
Gravity
Cooling systemYes
Gaming buttonsNo
Notifications

2GCDMA (800)
B2 (1900)
B3 (1800)
B5 (850)
B8 (900)
3GB1 (2100)
B2 (1900)
B4 (1700/2100 AWS A-F)
B5 (850)
B6 (800)
B8 (900)
B19 (800)
4G LTEB1 (2100)
B2 (1900)
B3 (1800)
B4 (1700/2100 AWS 1)
B5 (850)
B7 (2600)
B8 (900)
B18 (800)
B19 (800)
B26 (850)
B28A (700)
B34 (TDD 2100)
B38 (TDD 2600)
B39 (TDD 1900)
B40 (TDD 2300)
B41 (TDD 2500)
B42 (TDD 3500)
5GN1 (2100)
N3 (1800)
N28A (700)
N41 (2500)
N78 (3500)
N79 (4700)

Benchmarks

Antutu
v8
Total Score 673 599
28.02.2021
UL-Benchmark
Performance 8 561
12.03.2021
Antutu
v9
Total Score 722 864
02.05.2021
Geekbench
v5
Single-Core  992
02.05.2021
Geekbench
v5
Multi-Core 3 301
02.05.2021
AI-Benchmark
Score, K  71.5
28.06.2021

Chipset

Model Manufacturer GPU Cores Speed
Snapdragon 870 Qualcomm Qualcomm Adreno 650 8 cores 0 GHz - GHz

Cores list

A77 3.20 0 GHz
A77 2.4 0 GHz
A77 2.4 0 GHz
A77 2.4 0 GHz
A55 1.8 0 GHz
A55 1.8 0 GHz
A55 1.8 0 GHz
A55 1.8 0 GHz

Camera sensors

Main camera
Sensor model IMX582 Exmor RS
Manufacturer Sony
Resolution 48 MP
Aperture ƒ/1.79
Sensor type CMOS
Wide Angle + Macro
Sensor model IMX355
Manufacturer Sony
Resolution 8 MP
Aperture ƒ/2.2
Sensor type CMOS BSI
Macro lens
Sensor model S5K5E9
Manufacturer Samsung
Resolution 5 MP
Aperture ƒ/2.4
Sensor type ISOCELL
Selfie
Sensor model S5K3T2
Manufacturer Samsung
Resolution 20 MP
Aperture -
Sensor type ISOCELL

Supported bands

Carrier 2G
GSM
3G
UMTS
4G
LTE
AT&T
B5 (850)
B2 (1900)
B2 (1900)
B5 (850)
B2 (1900)
B4 (1700 / 2100 AWS 1)
B17 (700)
B30 (2300)
Bluegrass Cellular
B12 (700)
Boost Mobile
B2 (1900)
B5 (850)
B41 (TDD 2500)
B25 (1900+)
B26 (850)
C Spire
B2 (1900)
B4 (1700 / 2100 AWS 1)
B5 (850)
B41 (TDD 2500)
B12 (700)
Carolina West Wireless
B14 (700)
Cellular One
B5 (850)
Chariton Valley
B5 (850)
B14 (700)
Commnet Wireless
B5 (850)
B2 (1900)
Cricket
B5 (850)
B2 (1900)
B2 (1900)
B5 (850)
B2 (1900)
B4 (1700 / 2100 AWS 1)
B17 (700)
B30 (2300)
Indigo Wireless
B5 (850)
B2 (1900)
B5 (850)
iWireless
B2 (1900)
B4 (1700 / 2100 AWS A-F)
B2 (1900)
B4 (1700 / 2100 AWS 1)
Limitless Mobile
B2 (1900)
B2 (1900)
Lycamobile
B2 (1900)
B2 (1900)
B4 (1700 / 2100 AWS A-F)
B2 (1900)
B4 (1700 / 2100 AWS 1)
B12 (700)
Metro
B2 (1900)
B2 (1900)
B4 (1700 / 2100 AWS A-F)
B2 (1900)
B4 (1700 / 2100 AWS 1)
B12 (700)
B66 (1700 / 2100)
B71 (600)
Pine Cellular
B5 (850)
Plateau Wireless
B5 (850)
B4 (1700 / 2100 AWS A-F)
B5 (850)
Sprint
B2 (1900)
B5 (850)
B41 (TDD 2500)
B25 (1900+)
B26 (850)
Straight Talk
B5 (850)
B2 (1900)
B2 (1900)
B4 (1700 / 2100 AWS A-F)
B5 (850)
B2 (1900)
B4 (1700 / 2100 AWS 1)
B5 (850)
B41 (TDD 2500)
B12 (700)
B13 (700)
B17 (700)
B26 (850)
T-Mobile
B2 (1900)
B2 (1900)
B4 (1700 / 2100 AWS A-F)
B2 (1900)
B4 (1700 / 2100 AWS 1)
B12 (700)
B66 (1700 / 2100)
B71 (600)
Ting
B2 (1900)
B4 (1700 / 2100 AWS A-F)
B2 (1900)
B4 (1700 / 2100 AWS 1)
B5 (850)
B17 (700)
Union Telephone
B5 (850)
B2 (1900)
US Cellular
B5 (850)
B2 (1900)
B2 (1900)
B5 (850)
B2 (1900)
B4 (1700 / 2100 AWS 1)
B5 (850)
B12 (700)
Verizon
B5 (850)
B2 (1900)
B2 (1900)
B5 (850)
B2 (1900)
B4 (1700 / 2100 AWS 1)
B13 (700)
Viaero
B5 (850)
B2 (1900)
B2 (1900)
B5 (850)
B2 (1900)
B4 (1700 / 2100 AWS 1)
B14 (700)
Virgin Mobile
B2 (1900)
B5 (850)
B26 (850)
B25 (1900+)
West Central Wireless
B5 (850)
B2 (1900)
B5 (850)

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