Redmi Note 8 vs Mi A3 vs Xiaomi Mi A2

Bluetooth
Bluetooth5.0, A2DP, LE
Bluetooth5.0, A2DP, LE, aptX HD
Bluetooth5.0, A2DP, LE
OSN
OSNAndroid
OSNAndroid
OSNAndroid
Color
Color
Color
ColorBlue

Height
Height6.23 inches
Height6.04 inches
Height6.25 inches
Width
Width2.96 inches
Width2.83 inches
Width2.97 inches
Thickness
Thickness0.33 inches
Thickness0.33 inches
Thickness0.29 inches
Color
ColorCrystal Green, Crystal Blue
ColorKind of Gray, Not just Blue, More than White
ColorBlack, Gold, Blue, Red, Rose Gold
Build
BuildGlass front (Gorilla Glass 5), glass back (Gorilla Glass 5), plastic frame
BuildBack glass (Gorilla Glass 5), aluminum frame
BuildFront glass, aluminum body
Color
ColorCrystal Blue
ColorMore than White
ColorRose Gold
Weight
Weight
Weight173.8 g
Weight166 g

Screen Size
Screen Size6.3 inches
Screen Size6.01 inches
Screen Size5.99 inches
Display Type
Display TypeIPS LCD capacitive touchscreen
Display TypeSuper AMOLED capacitive touchscreen
Display TypeLTPS IPS LCD capacitive touchscreen
Display Resolution
Display Resolution1080 x 2340 pixels
Display Resolution720 x 1560 pixels
Display Resolution1080 x 2160 pixels
Pixel Density
Pixel Density409 ppi
Pixel Density286 ppi
Pixel Density403 ppi
Aspect Ratio
Aspect Ratio19.5:9
Aspect Ratio19.5:9
Aspect Ratio
Screen to Body Ratio
Screen to Body Ratio81.70%
Screen to Body Ratio80.3%
Screen to Body Ratio77.40%
Screen Resolution
Screen Resolution1080X2340
Screen Resolution720X1560
Screen Resolution1080X2160
Display Size
Display Size6.25 inch to 6.5 inch
Display Size6 inch to 6.25 inch
Display Size5.75 inch to 6 inch
Protection
Protection
ProtectionCorning Gorilla Glass 5
Protection
Display Type
Display Type
Display Type
Display TypeLTPS IPS LCD

OS
OSAndroid 9.0 (Pie) MIUI 10
OSAndroid 9.0 (Pie) Android One
OSAndroid 8.1 (Oreo), upgradable to Android 9.0 (Pie) Android One
GPU
GPUAdreno 610
GPUAdreno 610
GPUAdreno 512
Cores
Cores8
Cores8
Cores8
RAM
RAM3 GB RAM
RAM6 GB RAM
RAM4 GB RAM
Chipset GP
Chipset GPQualcomm SDM665 Snapdragon 665 (11 nm)
Chipset GPQualcomm SDM665 Snapdragon 665 (11 nm)
Chipset GPQualcomm SDM660 Snapdragon 660 (14 nm)
CPU
CPUOcta-core (4x2.0 GHz Kryo 260 Gold 4x1.8 GHz Kryo 260 Silver)
CPUOcta-core (2x2.0 GHz Kryo 260 Gold 6x1.8 GHz Kryo 260 Silver)
CPUOcta-core (4x2.2 GHz Kryo 260 4x1.8 GHz Kryo 260)
Chipset
Chipset
Chipset
ChipsetQualcomm SDM660 Snapdragon 660

RAM/Internal Storage
RAM/Internal Storage64GB 4GB RAM, 64GB 6 GB RAM, 128GB 6GB RAM
RAM/Internal Storage64 GB, 4 GB RAM or 128 GB, 6 GB RAM
RAM/Internal Storage128 GB, 6 GB RAM or 32/64 GB, 4 GB RAM
Storage
Storage32 GB
Storage128 GB
Storage64 GB
Expandable Memory
Expandable MemorymicroSD, up to 256 GB
Expandable MemorymicroSD, up to 256 GB (uses shared SIM slot)
Expandable MemoryNo

Quad Camera
Quad Camera48 MP, f/1.8, (wide), 1/2, 0.8 micron|8 MP, f/2.2, 13mm (ultrawide), 1/4, 1.12 micron|2 MP, f/2.4, 1/5, 1.75 micron (dedicated macro camera)|2 MP, f/2.4, 1/5, 1.75 micron, depth sensor
Quad Camera
Quad Camera
Autofocus
AutofocusPDAF
AutofocusPDAF
AutofocusPDAF
Back Camera Video
Back Camera Video2160p30fps, 1080p30/60/120fps, 720p960fps, gyro-EIS
Back Camera Video2160p30fps, 1080p30/60/120fps
Back Camera Video2160p30fps, 1080p30fps (gyro-EIS), 720p120fps
Back Camera Features
Back Camera FeaturesLED flash, HDR, panorama
Back Camera FeaturesLED flash, HDR, panorama
Back Camera FeaturesDual-LED flash, HDR, panorama
Triple Camera
Triple Camera
Triple Camera48 MP, f/1.8, (wide), 1/2, 0.8 micron|8 MP, (ultrawide), f/2.2, 1.12 micron|2 MP, f/2.4, depth sensor
Triple Camera
Dual Camera
Dual Camera
Dual Camera
Dual Camera12 MP, f/1.8, 1/2.9, 1.25 micron|20 MP, f/1.8, 1/2.8, 1.0 micron

Single Camera
Single Camera13 MP, f/2.0
Single Camera32 MP, f/2.0, 0.8 micron
Single Camera20 MP, f/2.2, 1/2.8, 1.0 micron
Front Camera Video
Front Camera Video1080p30fps
Front Camera Video1080p30fps
Front Camera Video1080p30fps
Front Camera Features
Front Camera FeaturesHDR, panorama
Front Camera FeaturesHDR
Front Camera FeaturesLED flash, Auto-HDR

HeadPhone Jack
HeadPhone JackYes
HeadPhone JackYes
HeadPhone JackYes
Loudspeaker
LoudspeakerYes
LoudspeakerYes
LoudspeakerYes
Audio Features
Audio Features
Audio FeaturesActive noise cancellation with dedicated mic
Audio FeaturesActive noise cancellation with dedicated mic

Battery Capacity
Battery Capacity4000 mAh
Battery Capacity4030 mAh
Battery Capacity3000 mAh
User Replaceable
User ReplaceableNon-removable
User ReplaceableNon-removable
User ReplaceableNon-removable
Charging
ChargingFast battery charging 18W
ChargingFast battery charging 18W (Quick Charge 3)
ChargingFast battery charging 18W (Quick Charge 3)|Fast battery charging 18W (Quick Charge 4) - India only
Battery Capacity
Battery Capacity4000 mAh
Battery Capacity4030 mAh
Battery Capacity3000 mAh
Battery Type
Battery TypeLi-Po
Battery TypeLi-Po
Battery TypeLi-Po

WLAN
WLANWi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot
WLANWi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot
WLANWi-Fi 802.11 a/b/g/n/ac, dual-band, WiFi Direct, hotspot
GPS
GPSYes, with A-GPS, GLONASS, GALILEO, BDS
GPSYes, with A-GPS, GLONASS, BDS
GPSYes, with A-GPS, GLONASS, BDS
Radio
RadioFM radio
RadioFM radio
RadioNo
USB
USB2.0, Type-C 1.0 reversible connector, USB On-The-Go
USB2.0, Type-C 1.0 reversible connector
USB2.0, Type-C 1.0 reversible connector
SIM
SIMDual SIM (Nano-SIM, dual stand-by)
SIMDual SIM (Nano-SIM, dual stand-by)
SIMDual SIM (Nano-SIM, dual stand-by)
Network Support
Network SupportGSM / HSPA / LTE
Network SupportGSM / HSPA / LTE
Network SupportGSM / CDMA / HSPA / LTE

Sensors
SensorsFingerprint (rear-mounted), accelerometer, gyro, proximity, compass
SensorsFingerprint (under display), accelerometer, gyro, proximity, compass
SensorsFingerprint (rear-mounted), accelerometer, gyro, proximity, compass

Announced On
Announced On2019, August
Announced On2019, July
Announced On2018, July
Status
StatusAvailable. Released 2019, September
StatusAvailable. Released 2019, July
StatusAvailable. Released 2018, July