Redmi Note 8 vs Realme 5 Pro vs Mi A3

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

Height
Height6.23 inches
Height6.18 inches
Height6.04 inches
Width
Width2.96 inches
Width2.92 inches
Width2.83 inches
Thickness
Thickness0.33 inches
Thickness0.35 inches
Thickness0.33 inches
Color
ColorCrystal Green, Crystal Blue
ColorCrystal Green, Crystal Blue
ColorKind of Gray, Not just Blue, More than White
Build
BuildFront glass, plastic body
BuildFront glass, plastic body
BuildBack glass (Gorilla Glass 5), aluminum frame
Color
ColorCrystal Blue
ColorCrystal Blue
ColorMore than White
Weight
Weight
Weight184 g
Weight173.8 g

Screen Size
Screen Size6.3 inches
Screen Size6.3 inches
Screen Size6.01 inches
Display Type
Display TypeIPS LCD capacitive touchscreen
Display TypeIPS LCD capacitive touchscreen
Display TypeSuper AMOLED capacitive touchscreen
Display Resolution
Display Resolution1080 x 2340 pixels
Display Resolution1080 x 2340 pixels
Display Resolution720 x 1560 pixels
Pixel Density
Pixel Density409 ppi
Pixel Density409 ppi
Pixel Density286 ppi
Aspect Ratio
Aspect Ratio19.5:9
Aspect Ratio19.5:9
Aspect Ratio19.5:9
Screen to Body Ratio
Screen to Body Ratio81.70%
Screen to Body Ratio83.60%
Screen to Body Ratio80.3%
Screen Resolution
Screen Resolution1080X2340
Screen Resolution1080X2340
Screen Resolution720X1560
Display Size
Display Size6.25 inch to 6.5 inch
Display Size6.25 inch to 6.5 inch
Display Size6 inch to 6.25 inch
Protection
Protection
ProtectionCorning Gorilla Glass 3
ProtectionCorning Gorilla Glass 5

OS
OSAndroid 9.0 (Pie) MIUI 10
OSAndroid 9.0 (Pie), planned upgrade to Android 10.0 ColorOS 6
OSAndroid 9.0 (Pie) Android One
GPU
GPUAdreno 610
GPUAdreno 616
GPUAdreno 610
Cores
Cores8
Cores8
Cores8
RAM
RAM3 GB RAM
RAM8 GB RAM
RAM6 GB RAM
Chipset GP
Chipset GPQualcomm SDM665 Snapdragon 665 (11 nm)
Chipset GPQualcomm SDM712 Snapdragon 712 (10 nm)
Chipset GPQualcomm SDM665 Snapdragon 665 (11 nm)
CPU
CPUOcta-core (4x2.0 GHz Kryo 260 Gold 4x1.8 GHz Kryo 260 Silver)
CPUOcta-core (2x2.3 GHz Kryo 360 Gold 6x1.7 GHz Kryo 360 Silver)
CPUOcta-core (2x2.0 GHz Kryo 260 Gold 6x1.8 GHz Kryo 260 Silver)

RAM/Internal Storage
RAM/Internal Storage64GB 4GB RAM, 64GB 6 GB RAM, 128GB 6GB RAM
RAM/Internal Storage64GB 4GB RAM, 64GB 6GB RAM, 128GB 8GB RAM
RAM/Internal Storage64 GB, 4 GB RAM or 128 GB, 6 GB RAM
Storage
Storage32 GB
Storage128 GB
Storage128 GB
Expandable Memory
Expandable MemorymicroSD, up to 256 GB
Expandable MemorymicroSD, up to 256 GB (dedicated slot)
Expandable MemorymicroSD, up to 256 GB (uses shared SIM slot)

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 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
Autofocus
AutofocusPDAF
AutofocusPDAF
AutofocusPDAF
Back Camera Video
Back Camera Video2160p30fps, 1080p30/60/120fps, 720p960fps, gyro-EIS
Back Camera Video2160p30fps, 1080p30/60/120fps, 720p960fps, gyro-EIS
Back Camera Video2160p30fps, 1080p30/60/120fps
Back Camera Features
Back Camera FeaturesLED flash, HDR, panorama
Back Camera FeaturesLED flash, HDR, panorama
Back Camera FeaturesLED flash, HDR, panorama
Triple Camera
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

Single Camera
Single Camera13 MP, f/2.0
Single Camera16 MP, f/2.0, 1/3.1, 1.0 micron
Single Camera32 MP, f/2.0, 0.8 micron
Front Camera Video
Front Camera Video1080p30fps
Front Camera Video1080p30fps
Front Camera Video1080p30fps
Front Camera Features
Front Camera FeaturesHDR, panorama
Front Camera FeaturesHDR, panorama
Front Camera FeaturesHDR

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

Battery Capacity
Battery Capacity4000 mAh
Battery Capacity4035 mAh
Battery Capacity4030 mAh
User Replaceable
User ReplaceableNon-removable
User ReplaceableNon-removable
User ReplaceableNon-removable
Charging
ChargingFast battery charging 18W
ChargingFast battery charging 20W: 50% in 30 min (VOOC 3.0)
ChargingFast battery charging 18W (Quick Charge 3)
Battery Capacity
Battery Capacity4000 mAh
Battery Capacity4035 mAh
Battery Capacity4030 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, Wi-Fi Direct, hotspot
GPS
GPSYes, with A-GPS, GLONASS, GALILEO, BDS
GPSYes, with A-GPS, GLONASS, GALILEO, BDS
GPSYes, with A-GPS, GLONASS, BDS
Radio
RadioFM radio
RadioFM radio
RadioFM radio
USB
USB2.0, Type-C 1.0 reversible connector, USB On-The-Go
USB2.0, Type-C 1.0 reversible connector, USB On-The-Go
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 / HSPA / LTE

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

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