Compare Redmi Note 8 2021 vs Redmi K40 Gaming Edition vs Redmi Note 8 2021
Connectivity
Ports
USB-C 2.0, 3.5mm headphone
USB-C
USB-C 2.0, 3.5mm headphone
Wireless Connectivity
IR, WiFi 5, Bluetooth 5.2
WiFi 6, Bluetooth 5.2
IR, WiFi 5, Bluetooth 5.2
Construction
Battery | Capacity
4000 mAh (typ)
5065 mAh
4000 mAh (typ)
Camera | Front
13 MP, f/2.0, 1/3.1", 1.12µm
16MP
13 MP, f/2.0, 1/3.1", 1.12µm
Camera | Rear | Depth
2 MP, f/2.4
2 MP, f/2.4
Camera | Rear | Macro
2 MP, f/2.4
2MP, f/2.4
2 MP, f/2.4
Camera | Rear | Ultra-Wide
8 MP, f/2.2, 120˚, 1/4.0", 1.12µm
8MP, f/2.2
8 MP, f/2.2, 120˚, 1/4.0", 1.12µm
Camera | Rear | Wide
48 MP, f/1.8, 26mm, 1/2.0", 0.8µm, PDAF
64MP, f/1.65
48 MP, f/1.8, 26mm, 1/2.0", 0.8µm, PDAF
Colors
Neptune Blue, Moonlight White, Space Black
Black, Sliver, White
Neptune Blue, Moonlight White, Space Black
Material
Gorilla Glass 5 front and back, plastic frame
Corning Gorrila Glass 5
Gorilla Glass 5 front and back, plastic frame
Speakers
Super linear speaker
Dual speakers
Super linear speaker
Dimensions
Size | Depth
8.35 mm / 0.33"
8.3 mm
8.35 mm / 0.33"
Size | Height
158.3 mm / 6.23"
161.94 mm
158.3 mm / 6.23"
Size | Width
75.3 mm / 2.96"
76.93 mm
75.3 mm / 2.96"
Weight
190 g / 6.7oz
205 g
190 g / 6.7oz
Display
Aspect Ratio
19.5:9
20:9
19.5:9
Brightness
500 nits
500 nits
500 nits
Contrast Ratio
5,000,000:1 (typical)
Display Color Depth
10-bit (1.07B)
Display Diagonal
6.3 inch
6.67 inch
6.3 inch
Display Type
IPS
OLED
IPS
Gamut
100% DCI-P3
Pixel Density
409 ppi
409 ppi
Refresh Rate
120 Hz
Resolution
FHD+ 2340×1080
FHD+ 2400x1080
FHD+ 2340×1080
Function
Bluetooth Codecs
AAC / LDAC / LHDC
Bluetooth Profiles
A2DP
A2DP
Chipset
MediaTek Helio G85, 12nm manufacturing process
MediaTek 1200
MediaTek Helio G85, 12nm manufacturing process
Fast Charging
18W fast charge
67W wired turbo charging, 42min to 100%
18W fast charge
GPS
GPS, A-GPS, GLONASS, GALILEO, BDS
GPS: L1+L5 / Galileo: E1+E5a / GLONASS: G1 / Beidou
GPS, A-GPS, GLONASS, GALILEO, BDS
Graphics
Mali-G52 MP2 GPU
9-core Mali
Mali-G52 MP2 GPU
HDR
HDR10+
Operating System
Android 11, MIUI 12.5
MIUI 12.5, Android 11
Android 11, MIUI 12.5
Processor
Octa-core (2x2.0 GHz Cortex-A75 & 6x1.8 GHz Cortex-A55)
8-core Cortex A78, 6nm
Octa-core (2x2.0 GHz Cortex-A75 & 6x1.8 GHz Cortex-A55)
SIM
2x Nano 4G LTE
Dual nano 5G
2x Nano 4G LTE
Security
Side-mounted fingerprint sensor
Sensor
Fingerprint, accelerometer, gyro, proximity, compass
Fingerprint, accelerometer, gyro, proximity, compass
Touch Screen
480Hz touch sampling rate
Tuner
FM radio
FM radio
Video Recording
FHD @ 30fps
4K 30fps, FHD 120fps, HD 960fps
FHD @ 30fps
Performance
Charging Time
52min to 100%
Memory | Capacity
4 GB
6, 8, or 12 GB
4 GB
Memory | Type
LPDDR4X
LPDDR4x 4266Mbps
LPDDR4X
Storage
64 or 128 GB eMMC 5.1 storage + microSD
128 or 256 GB UFS 3.1
64 or 128 GB eMMC 5.1 storage + microSD
Production
Debut
2021-05-25
2021-04-27
2021-05-25
Made In
China
China
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