Compare Redmi Note 8 2021 vs Redmi Note 10S vs Redmi K40 Pro
Connectivity
Ports
USB-C 2.0, 3.5mm headphone
1x USB-C + 1x Headphone jack
USB-C
Wireless Connectivity
IR, WiFi 5, Bluetooth 5.2
WiFi 5, Bluetooth 5.1, IR blaster, NFC
WiFi 6E, Bluetooth 5.2, NFC, IR blaster
Construction
Battery | Capacity
4000 mAh (typ)
5000 mAh
4520 mAh
Camera | Front
13 MP, f/2.0, 1/3.1", 1.12µm
13MP, f/2.5, 1/3.06", 1.12µm
20MP
Camera | Rear | Depth
2 MP, f/2.4
2MP, f/2.4
Camera | Rear | Macro
2 MP, f/2.4
2MP, f/2.4
Camera | Rear | Telephoto
5MP
Camera | Rear | Ultra-Wide
8 MP, f/2.2, 120˚, 1/4.0", 1.12µm
8 MP, f/2.2, 118˚, 1/4.0", 1.12µm
8MP, f/2.2
Camera | Rear | Wide
48 MP, f/1.8, 26mm, 1/2.0", 0.8µm, PDAF
64MP, f/1.8, 1/1.97", PDAF
64MP, Sony IMX686, f/1.89
Colors
Neptune Blue, Moonlight White, Space Black
Ocean Blue, Onyx Gray, Pebble White
Glossy Black, Icy White, and Dreamland
Material
Gorilla Glass 5 front and back, plastic frame
Corning Gorilla Glass 3
Corning Gorrila Glass 5
Speakers
Super linear speaker
Dual speakers
Dual speakers
Dimensions
Size | Depth
8.35 mm / 0.33"
8.3 mm
7.8 mm
Size | Height
158.3 mm / 6.23"
160.5 mm
163.7 mm
Size | Width
75.3 mm / 2.96"
74.5 mm
76.4 mm
Weight
190 g / 6.7oz
178.8 g
196 g
Display
Aspect Ratio
19.5:9
20:9
20:9
Brightness
500 nits
450 nits (typ), 1100 nits (peak)
900 nits (typ) / 1300 nits (max)
Contrast Ratio
5,000,000:1 (typical)
Display Color Depth
8-bit
10-bit
Display Diagonal
6.3 inch
6.43 inch
6.67 inch
Display Type
IPS
AMOLED (OLED)
Samsung E4 AMOLED (OLED)
Gamut
100% DCI-P3
100% DCI-P3
Pixel Density
409 ppi
409 ppi
Refresh Rate
90 Hz
120 Hz
Resolution
FHD+ 2340×1080
FHD+, 2400x1080
FHD+ 2400x1080
Function
Audio
Dolby Atmos
Bluetooth Codecs
AAC / LDAC / LHDC
Bluetooth Profiles
A2DP
Chipset
MediaTek Helio G85, 12nm manufacturing process
Mediatek Helio G95
Qualcomm Snapdragon 888
Fast Charging
18W fast charge
33W fast charging
55W wired turbo charging
GPS
GPS, A-GPS, GLONASS, GALILEO, BDS
A-GPS, GLONASS, GALILEO, BDS
GPS: L1+L5 / Galileo: E1+E5a / GLONASS: G1 / Beidou
Graphics
Mali-G52 MP2 GPU
Mali-G76 MC4
Qualcomm Adreno 660 GPU
HDR
HDR10+
Operating System
Android 11, MIUI 12.5
MIUI 12, Android 11
MIUI 12, Android 11
Processor
Octa-core (2x2.0 GHz Cortex-A75 & 6x1.8 GHz Cortex-A55)
Octa-core (2x2.05 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
Qualcomm Kryo 680, 8-core
SIM
2x Nano 4G LTE
Dual Nano 4G LTE
Dual nano 5G
Security
Arc side fingerprint sensor
Side-mounted fingerprint sensor
Sensor
Fingerprint, accelerometer, gyro, proximity, compass
Proximity sensor | Ambient light sensor | Accelerometer | Gyroscope | Electronic compass | Linear motor | IR Blaster
Touch Screen
360Hz touch sampling rate
Tuner
FM radio
Video Recording
FHD @ 30fps
8K 30fps / 4K 60fps / FHD 960fps
Weather Resistance
IP53
Performance
Charging Time
52min to 100%
Memory | Capacity
4 GB
6 or 8 GB
6 or 8 GB
Memory | Type
LPDDR4X
LPDDR4X
LPDDR5 6400Mbps
Power Supply
33 W
Storage
64 or 128 GB eMMC 5.1 storage + microSD
64 or 128 GB UFS 2.2 + micro SD
128 or 256 GB UFS 3.1
Production
Debut
2021-05-25
2021-03-04
2021-02-25
Made In
China
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