Compare Xiaomi Redmi Note 9 vs Redmi Note 8 2021 vs Redmi 9A
Connectivity
Ports
USB-C, 3.5mm headphone
USB-C 2.0, 3.5mm headphone
Micro USB, 3.5mm headphone
Wireless Connectivity
NFC, IR, WiFi 5, Bluetooth 5.0
IR, WiFi 5, Bluetooth 5.2
WiFi 4, Bluetooth 5.0
Construction
Battery | Capacity
5020 mAh (typ)
4000 mAh (typ)
5000 mAh
Camera | Front
13MP, 1.12μm pixel size, 1/3.06" sensor size, f/2.25, 5P lens, 74°FOV
13 MP, f/2.0, 1/3.1", 1.12µm
5MP 1.12μm large pixels f/2.2 aperture
Camera | Rear
13MP
Camera | Rear | Depth
2MP, 1/5" sensor size, 1.7μm pixel size, 3P lens, f/2.4 FF
2 MP, f/2.4
Camera | Rear | Macro
2MP, AF (2cm-10cm), 1.75μm pixel size, f/2.4 aperture
2 MP, f/2.4
Camera | Rear | Ultra-Wide
8MP, FOV 118°, f/2.2, 1/4" sensor size, 1.2μm pixel size, 5P lens
8 MP, f/2.2, 120˚, 1/4.0", 1.12µm
Camera | Rear | Wide
48MP, 1/2" sensor size, 1.6μm 4-in-1 Super Pixel, 0.8μm pixel size, f/1.79, AF, 6P lens, FOV 79.4°
48 MP, f/1.8, 26mm, 1/2.0", 0.8µm, PDAF
Colors
Polar White, Midnight Grey, Forest Green, Onyx Black
Neptune Blue, Moonlight White, Space Black
Carbon Grey, Sky Blue, Ocean Green
Material
Corning Gorilla Glass 5
Gorilla Glass 5 front and back, plastic frame
Speakers
Super linear speaker
1216 size Xmax 0.5mm Ultra Linear Amplitude Speaker + 3.5mm headphone jack
Dimensions
Size | Depth
8.9 mm
8.35 mm / 0.33"
9.0 mm
Size | Height
162.3 mm
158.3 mm / 6.23"
164.9 mm
Size | Width
77.2 mm
75.3 mm / 2.96"
77.07 mm
Weight
199 g
190 g / 6.7oz
194 g
Display
Aspect Ratio
19.5:9
19.5:9
20:9
Brightness
450 nits
500 nits
400 nit
Contrast Ratio
1500:1
1500:1
Display Diagonal
6.53 inch
6.3 inch
6.53"
Display Type
IPS
Dot Drop display
Gamut
84% NTSC
70.8% NTSC
Pixel Density
409 ppi
Resolution
FHD+ 2340×1080
FHD+ 2340×1080
HD+ 720x1600
Function
Bluetooth Profiles
A2DP
Chipset
MediaTek Helio G85
MediaTek Helio G85, 12nm manufacturing process
MediaTek Helio G25
Fast Charging
18W fast charge
18W fast charge
GPS
GPS/ A-GPS / Galileo/ GLONASS / Beidou
GPS, A-GPS, GLONASS, GALILEO, BDS
Graphics
ARM G52 MC2
Mali-G52 MP2 GPU
PowerVR8320, up to 650MHz
Operating System
MIUI 11
Android 11, MIUI 12.5
MIUI 12
Processor
2x A75 2.0GHz, 6x A55 1.8GHz, Octa-core CPU
Octa-core (2x2.0 GHz Cortex-A75 & 6x1.8 GHz Cortex-A55)
8x A53, Octa-core CPU
SIM
2x Nano 4G LTE
2x Nano 4G LTE
Dual 4G
Security
AI Face Unlock + Rear fingerprint sensor (Redmi 9 only)
Sensor
Fingerprint, accelerometer, gyro, proximity, compass
Tuner
FM radio
Video Recording
FHD @ 30fps
Performance
Memory | Capacity
3 - 4 GB
4 GB
2 GB
Memory | Type
LPDDR4X
LPDDR4X
Storage
64 - 128 GB
64 or 128 GB eMMC 5.1 storage + microSD
32 GB eMMC 5.1
Production
Debut
2020-03-12
2021-05-25
2020-07-15
Made In
China
China
China
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