Compare Redmi Note 9T vs Redmi K40 Pro vs Xiaomi MIX 4
Connectivity
Ports
USB-C + 3.5mm headphone jack
USB-C
USB-C
Wireless Connectivity
NFC, IR blaster, Bluetooth, WiFi
WiFi 6E, Bluetooth 5.2, NFC, IR blaster
WiFi 6E, Bluetooth 5.2, UWB point-to-connect, Multifunctional NFC, IR Blaster
Construction
Battery | Capacity
5000 mAh
4520 mAh
4500 mAh
Camera | Front
13MP, f/2.25
20MP
20MP CUP camera, 1.6μm 4-in-1 Super Pixel
Camera | Rear
48MP main camera 1/2" sensor, f/1.79, AF + 2MP depth sensor, f/2.4 + 2MP macro camera, f/2.4
Camera | Rear | Telephoto
5MP
8MP, 5X optical zoom, 50x digital zoom, OIS
Camera | Rear | Ultra-Wide
8MP, f/2.2
13MP, free-form lens, FOV 120°, 6P lens
Camera | Rear | Wide
64MP, Sony IMX686, f/1.89
108MP, 1/1.33″ HMX sensor, 1.6μm 4-in-1 Super Pixel, OIS, 7P lens
Colors
Nightfall Black, Daybreak Purple
Glossy Black, Icy White, and Dreamland
Ceramic Gray, Ceramic White, Ceramic Black
Material
Corning️ Gorilla️ Glass 5 front / Unibody polycarbonate back
Corning Gorrila Glass 5
Corning Gorilla Glass Victus front
Speakers
Dual speakers
Dual speakers
Dual speakers, SOUND BY Harman Kardon, Hi-Res Audio certification
Dimensions
Size | Depth
9.05 mm
7.8 mm
8 mm / 0.31"
Size | Height
161.96 mm
163.7 mm
162.6 mm / 6.40"
Size | Width
77.25 mm
76.4 mm
75.4 mm / 2.97"
Weight
199 g
196 g
225 g / 7.94 oz
Display
Aspect Ratio
20:9
20:9
Brightness
450 nits (typ)
900 nits (typ) / 1300 nits (max)
800 nits
Contrast Ratio
5,000,000:1 (typical)
5,000,000:1 (typical)
Display Color Depth
10-bit
10-bit (1.07B colors)
Display Diagonal
6.53 inch
6.67 inch
6.67 inch
Display Type
DotDisplay
Samsung E4 AMOLED (OLED)
3D curved AMOLED (OLED)
Gamut
84% NTSC
100% DCI-P3
100% DCI-P3
Refresh Rate
60 Hz
120 Hz
120 Hz
Resolution
FHD+, (2340×1080)
FHD+ 2400x1080
1080 x 2400
Function
Audio
Hi-Res Audio certification
Dolby Atmos
Hi-Res Audio certification
Bluetooth Codecs
AAC / LDAC / LHDC
AAC/LDAC/LHDC
Chipset
Qualcomm Snapdragon 888
Qualcomm Snapdragon 888+
Fast Charging
18W wired fast charging
55W wired turbo charging
120W wired charging: 21mins to 100% in default mode, 15mins to 100% in Boost Mode
GPS
GPS: L1+L5 / Galileo: E1+E5a / GLONASS: G1 / Beidou
GPS: L1+L5 / Galileo: E1+E5a / GLONASS: G1 / Beidou
Graphics
Mali-G57 GPU
Qualcomm Adreno 660 GPU
Adreno 660
HDR
HDR10+
HDR10+, Dolby Vision
Operating System
MIUI 12 based on Android 10
MIUI 12, Android 11
MIUI 12, Android 11
Processor
MediaTek Dimensity 800U
Qualcomm Kryo 680, 8-core
Octa-core (1x2.99 GHz Kryo 680 & 3x2.42 GHz Kryo 680 & 4x1.80 GHz Kryo 680)
SIM
Dual SIM, dual 5G standby
Dual nano 5G
Dual Nano SIM, 5G
Security
Side-mounted fingerprint sensor + AI Face Unlock
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
Video Recording
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%
Memory | Capacity
4 GB
6 or 8 GB
8 or 12 GB
Memory | Type
LPDDR4X
LPDDR5 6400Mbps
LPDDR5 6400Mbps
Power Supply
33 W
Storage
64GB UFS 2.1 or 128GB UFS2.2 + up to 256GB microSD
128 or 256 GB UFS 3.1
128, 256, or 512 GB UFS 3.1
Production
Availability
2021-01-09
Debut
2021-01-08
2021-02-25
2021-08-10
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