Compare Redmi K40 Pro+ vs Xiaomi MIX 4 vs Redmi K40 Pro+
Connectivity
Ports
USB-C
USB-C
USB-C
Wireless Connectivity
WiFi 6E, Bluetooth 5.2, NFC, IR blaster
WiFi 6E, Bluetooth 5.2, UWB point-to-connect, Multifunctional NFC, IR Blaster
WiFi 6E, Bluetooth 5.2, NFC, IR blaster
Construction
Battery | Capacity
4520 mAh
4500 mAh
4520 mAh
Camera | Front
20MP
20MP CUP camera, 1.6μm 4-in-1 Super Pixel
20MP
Camera | Rear | Telephoto
5MP
8MP, 5X optical zoom, 50x digital zoom, OIS
5MP
Camera | Rear | Ultra-Wide
8MP, f/2.2
13MP, free-form lens, FOV 120°, 6P lens
8MP, f/2.2
Camera | Rear | Wide
108MP, Samsung HM2, f/1.75
108MP, 1/1.33″ HMX sensor, 1.6μm 4-in-1 Super Pixel, OIS, 7P lens
108MP, Samsung HM2, f/1.75
Colors
Glossy Black, Icy White, and Dreamland
Ceramic Gray, Ceramic White, Ceramic Black
Glossy Black, Icy White, and Dreamland
Material
Corning Gorrila Glass 5
Corning Gorilla Glass Victus front
Corning Gorrila Glass 5
Speakers
Dual speakers
Dual speakers, SOUND BY Harman Kardon, Hi-Res Audio certification
Dual speakers
Dimensions
Size | Depth
7.8 mm
8 mm / 0.31"
7.8 mm
Size | Height
163.7 mm
162.6 mm / 6.40"
163.7 mm
Size | Width
76.4 mm
75.4 mm / 2.97"
76.4 mm
Weight
196 g
225 g / 7.94 oz
196 g
Display
Aspect Ratio
20:9
20:9
20:9
Brightness
900 nits (typ) / 1300 nits (max)
800 nits
900 nits (typ) / 1300 nits (max)
Contrast Ratio
5,000,000:1 (typical)
5,000,000:1 (typical)
5,000,000:1 (typical)
Display Color Depth
10-bit
10-bit (1.07B colors)
10-bit
Display Diagonal
6.67 inch
6.67 inch
6.67 inch
Display Type
Samsung E4 AMOLED (OLED)
3D curved AMOLED (OLED)
Samsung E4 AMOLED (OLED)
Gamut
100% DCI-P3
100% DCI-P3
100% DCI-P3
Refresh Rate
120 Hz
120 Hz
120 Hz
Resolution
FHD+ 2400x1080
1080 x 2400
FHD+ 2400x1080
Function
Audio
Dolby Atmos
Hi-Res Audio certification
Dolby Atmos
Bluetooth Codecs
AAC / LDAC / LHDC
AAC/LDAC/LHDC
AAC / LDAC / LHDC
Chipset
Qualcomm Snapdragon 888
Qualcomm Snapdragon 888+
Qualcomm Snapdragon 888
Fast Charging
55W wired turbo charging
120W wired charging: 21mins to 100% in default mode, 15mins to 100% in Boost Mode
55W wired turbo charging
GPS
GPS: L1+L5 / Galileo: E1+E5a / GLONASS: G1 / Beidou
GPS: L1+L5 / Galileo: E1+E5a / GLONASS: G1 / Beidou
GPS: L1+L5 / Galileo: E1+E5a / GLONASS: G1 / Beidou
Graphics
Qualcomm Adreno 660 GPU
Adreno 660
Qualcomm Adreno 660 GPU
HDR
HDR10+
HDR10+, Dolby Vision
HDR10+
Operating System
MIUI 12, Android 11
MIUI 12, Android 11
MIUI 12, Android 11
Processor
Qualcomm Kryo 680, 8-core
Octa-core (1x2.99 GHz Kryo 680 & 3x2.42 GHz Kryo 680 & 4x1.80 GHz Kryo 680)
Qualcomm Kryo 680, 8-core
SIM
Dual nano 5G
Dual Nano SIM, 5G
Dual nano 5G
Security
Side-mounted fingerprint sensor
Side-mounted fingerprint sensor
Sensor
Fingerprint (under display, optical), accelerometer, gyro, proximity, compass, color spectrum
Touch Screen
360Hz touch sampling rate
480Hz touch sampling rate
360Hz touch sampling rate
Video Recording
8K 30fps / 4K 60fps / FHD 960fps
8K 30fps / 4K 60fps / FHD 960fps
Weather Resistance
IP53
Wireless Charging
50W wireless charging: 45min to 100% in default mode, 28min to 100% in Boost Mode
Performance
Charging Time
52min to 100%
52min to 100%
Memory | Capacity
12 GB
8 or 12 GB
12 GB
Memory | Type
LPDDR5 6400Mbps
LPDDR5 6400Mbps
LPDDR5 6400Mbps
Power Supply
33 W
33 W
Storage
256 GB UFS 3.1
128, 256, or 512 GB UFS 3.1
256 GB UFS 3.1
Production
Debut
2021-02-25
2021-08-10
2021-02-25
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