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Redmi K40 Pro vs Xiaomi Black Shark 4S

Redmi K40 Pro XiaomiRedmi K40 Pro
VS
Xiaomi Black Shark 4S XiaomiBlack Shark 4S

The third device is shown on desktop screens only

General

Device Type
Smart Phone
Smart Phone
Device Name
Redmi K40 ProM2012K11C
Xiaomi Black Shark 4S
Announced
February 2021
October 2021
Released
March 2021
October 2021
Colors
BlackWhiteAurora
BlackWhite

Design

Length
163.7 mm (6.44 in)
163.7 mm (6.44 in)
Width
76.4 mm (3.01 in)
76.2 mm (3.00 in)
Thickness
7.8 mm (0.31 in)
9.9 mm (0.39 in)
Weight
196 g (6.91 oz)
210 g (7.41 oz)
Materials
—
Glass frontGlass backMetal frame

Network

2G Network
Yes
Yes
3G Network
Yes
Yes
4G Network
Yes
Yes
5G Network
Yes
Yes
GPRS
Yes
Yes
EDGE
Yes
Yes
SIM
Nano SIM
Nano SIM
Multi SIM
Dual SIM
Dual SIM
Speed
3G Up to 42 MB4G Up to 2 GB5G Up to 7.5 GB
Same on both

Display

Display Type
Super AMOLED
Super AMOLED
Size
6.67 Inches
6.67 Inches
Refresh Rate
120 Hz
144 Hz
Resolution
1080x2400 Pixels (FHD+)
1080x2400 Pixels (FHD+)
Screen Ratio
85.9%
86.1%
Aspect Ratio
20:9
20:9
Pixel Density
395 PPI
395 PPI
Brightness Level
1300 Nits (Peak)900 Nits
1300 Nits (Peak)
Display Protection
Corning Gorilla Glass 5
—
Features
No extras
Touch Response Rate 720 Hz
On both: HDR10+, Always-on Display, Hole-punch Notch, Eye Care Display, Dark Mode, Capacitive, Multi-touch, 16M Colors

Hardware

Chipset
Qualcomm Snapdragon 888 5G
Qualcomm Snapdragon 870 5G
Manufacturing Technology
5 nm
7 nm
CPU Type
8 (Octa-core)
8 (Octa-core)
CPU
1x2.84 GHz (Kryo 680)3x2.42 GHz (Kryo 680)4x1.80 GHz (Kryo 680)
1x3.2 GHz (Kryo 585)3x2.42 GHz (Kryo 585)4x1.80 GHz (Kryo 585)
GPU
Adreno 660
Adreno 650
RAM (Memory)
6/8/12 GB6 GB (128 GB)8 GB (256 GB)
8/12 GB12 GB (128 GB)
On both: 8 GB (128 GB), 12 GB (256 GB)
Internal Storage
128/256 GB
128/256 GB
Storage Type
UFS 3.1
UFS 3.1
Ram Type
LPDDR5
LPDDR5
Card Slot
No
No

Software

OS
Android 11
Android 11
User Interface
MIUI 12
Joy UI 12.8

Main camera

Camera Setup
Triple Camera
Triple Camera
Resolution
64 MP + 8 MP + 5 MP
48 MP + 8 MP + 5 MP
Camera
64 MP: Standard8 MP: Ultrawide5 MP: Macro
48 MP: Standard8 MP: Ultrawide5 MP: Macro (AF)
Aperture Size
F/1.9 (64 MP)
F/1.8 (48 MP)
On both: F/2.2 (8 MP), F/2.4 (5 MP)
Sensor
Sony IMX686 (64 MP)Sony IMX355 (8 MP)Samsung S5K5E9 (5 MP)
Sony IMX582 (48 MP)Unknown (8 MP)Unknown (5 MP)
Stabilization
Electronic Stabilization (EIS)
Electronic Stabilization (EIS)
Zoom
Digital Zoom
Digital Zoom
Slow Motion
FHD 1080P@120/240fpsFHD 1080P@960fps
FHD 1080P@240fpsFHD 1080P@960fps
Video
8K 4320P@30fps4K 2160P@30/60fpsFHD 1080P@30/60fpsHDR10+ Recording
4K 2160P@30/60fpsFHD 1080P@30/60fps
Flash
Yes
Yes
More details (1)Camera Features
Camera Features
Autofocus (AF)Night ModePortrait ModePro ModeAI Scene DetectionContinuous shootingPanoramaExposure compensationFace detectionGeotaggingHDRISO settingsScene modeSelf-timerTouch focusWhite balance settings
Same on both

Selfie Camera

Camera
20 MP
20 MP
Aperture Size
F/2.5
F/2.0
Video
FHD 1080P@30fpsElectronic Stabilization (EIS)
FHD 1080P@30fps
Slow Motion
HD 720P@120fps
—
Flash
No
No
More details (1)Camera Features
Camera Features
Night Mode
No extras
On both: Portrait Mode, Face Detection, Beauty Mode, Gesture Shot, HDR

Connectivity

Wi-Fi
a/b/g/n/ac/6e
a/b/g/n/ac/6
On both: Wi-Fi 802.11, Dual-band, Wi-Fi Direct, Hotspot
Bluetooth
5.1
5.2aptX HDaptX Adaptive
On both: A2DP, LE
Location
NavIC
No extras
On both: GPS, A-GPS, GLONASS, BDS, GALILEO, QZSS
NFC
Yes
Yes
IR blaster
Yes
—
USB
USB Type-C 2.0
USB Type-C 2.0

Media

Loudspeaker
Yes - Stereo speakers
Yes - Stereo speakers
3.5mm jack
No
Yes
FM Radio
No24-bit/192kHz
No24-bit/192kHz

Other specifications

Sensors
Color Spectrum
No extras
On both: Accelerometer, Gyroscope, Proximity, Compass, barometer
Lock Type
Fingerprint (Side-mounted)Facial RecognitionPatternPINPassword
Same on both
Water/Dust Resistant
Dust and splash resistance (IP53)
—
Box Contents
Power Adapter (33 W)
Power Adapter (120 W)Physical pop-up gaming triggers
On both: Device, USB Cable, Protective Case, SIM Eject Tool, Quick start guide

Charging and Battery

Fast Charging
Yes - 33 W (100% in 52 min)
Yes - 120 W (100% in 17 min)
Capacity
4520 mAh
4500 mAh

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Copyright © 2026 NXT Test. All Rights Reserved