Samsung galaxy M30s vs Redmi Note 8 Pro vs Samsung Galaxy M40

Weight
Weight188 g
Weight199 g
Weight168 g
Color
ColorOpal Black, Sapphire Blue, Pearl White
ColorBlack, Red, Blue, White
ColorSweater Blue, Midnight Blue
Build
BuildFront glass, plastic body
BuildFront/back glass (Gorilla Glass 5)
BuildFront glass, plastic body
Color
ColorPearl White
ColorWhite
ColorMidnight Blue
Height
Height
Height6.35 inches
Height6.11 inches
Width
Width
Width3.01 inches
Width2.91 inches
Thickness
Thickness
Thickness0.35 inches
Thickness0.31 inches

Screen Size
Screen Size6.4 inches
Screen Size6.53 inches
Screen Size6.3 inches
Display Type
Display TypeSuper AMOLED capacitive touchscreen
Display TypeIPS LCD capacitive touchscreen
Display TypePLS TFT capacitive touchscreen
Display Resolution
Display Resolution1080 x 2400 pixels
Display Resolution1080 x 2340 pixels
Display Resolution1080 x 2340 pixels
Pixel Density
Pixel Density411 ppi
Pixel Density395 ppi
Pixel Density409 ppi
Aspect Ratio
Aspect Ratio20:09
Aspect Ratio19.5:9
Aspect Ratio19.5:9
Screen Resolution
Screen Resolution1080X2340
Screen Resolution1080X2340
Screen Resolution
Display Size
Display Size6.25 inch to 6.5 inch
Display Size6.5 inch to 6.75 inch
Display Size6.25 inch to 6.5 inch
Protection
Protection
ProtectionCorning Gorilla Glass 5
ProtectionCorning Gorilla Glass (unspecified)
Screen to Body Ratio
Screen to Body Ratio
Screen to Body Ratio84.90%
Screen to Body Ratio84.9%
Display Type
Display Type
Display Type
Display TypePLS TFT

OS
OSAndroid 9.0 (Pie) One UI
OSAndroid 9.0 (Pie) MIUI 10
OSAndroid 9.0 (Pie) One UI
GPU
GPUMali-G72 MP3
GPUMali-G76MC4
GPUAdreno 612
RAM
RAM6 GB RAM
RAM8 GB RAM
RAM4 GB RAM
Cores
Cores8
Cores8
Cores
Chipset GP
Chipset GPExynos 9611 (10nm)
Chipset GPMediatek Helio G90T (12nm)
Chipset GPQualcomm SDM675 Snapdragon 675 (11 nm)
CPU
CPUOcta-core (4x2.3 GHz Cortex-A73 4x1.7 GHz Cortex-A53)
CPUOcta-core (2x Cortex-A76 6x Cortex-A55)
CPUOcta-core (2x2.0 GHz Kryo 460 Gold 6x1.7 GHz Kryo 460 Silver)

Storage
Storage128 GB
Storage128 GB
Storage64 GB
RAM/Internal Storage
RAM/Internal Storage64GB 4GB RAM, 128GB 6GB RAM
RAM/Internal Storage64GB 6 GB RAM, 128GB 6GB RAM, 128GB 8GB RAM
RAM/Internal Storage128 GB, 6 GB RAM or 64 GB, 4 GB RAM
Expandable Memory
Expandable MemorymicroSD, up to 1 TB (dedicated slot)
Expandable MemorymicroSD, up to 256 GB (uses shared SIM slot)
Expandable MemorymicroSD, up to 1 TB (uses shared SIM slot)

Triple Camera
Triple Camera48 MP, f/2.0, (wide), 1/2, 0.8 micron|8 MP, f/2.2, 12mm (ultrawide)|5 MP, f/2.2, depth sensor
Triple Camera
Triple Camera32 MP, f/1.7, 0.8 micron|8 MP, f/2.2, 12mm (ultrawide), 1.12 micron|5 MP, f/2.2, depth sensor
Autofocus
AutofocusPDAF
AutofocusPDAF
AutofocusPDAF
Back Camera Video
Back Camera Video2160p30fps, 1080p30fps, gyro-EIS
Back Camera Video2160p30fps, 1080p30/60/120fps, (gyro-EIS)
Back Camera Video2160p30fps, 1080p30fps
Back Camera Features
Back Camera FeaturesLED flash, panorama, HDR
Back Camera FeaturesDual-LED flash, HDR, panorama
Back Camera FeaturesLED flash, panorama, HDR
Quad Camera
Quad Camera
Quad Camera64 MP, f/1.8, (wide), 1/1.7, 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

Single Camera
Single Camera16 MP, f/2.0
Single Camera20 MP, f/2.0
Single Camera16 MP, f/2.0
Front Camera Video
Front Camera Video1080p30fps
Front Camera Video1080p30fps
Front Camera Video1080p30fps
Front Camera Features
Front Camera FeaturesHDR
Front Camera FeaturesHDR
Front Camera FeaturesHDR

HeadPhone Jack
HeadPhone JackYes
HeadPhone JackYes
HeadPhone JackYes
Loudspeaker
LoudspeakerYes
LoudspeakerYes
LoudspeakerYes
Audio Features
Audio FeaturesActive noise cancellation with dedicated mic|Dolby Atmos sound
Audio FeaturesActive noise cancellation with dedicated mic
Audio FeaturesActive noise cancellation with dedicated mic|Dolby Atmos sound

Battery Capacity
Battery Capacity6000 mAh
Battery Capacity4500 mAh
Battery Capacity3500 mAh
User Replaceable
User ReplaceableNon-removable
User ReplaceableNon-removable
User ReplaceableNon-removable
Charging
ChargingFast battery charging 15W
ChargingFast battery charging 18W
ChargingFast battery charging 15W
Battery Capacity
Battery Capacity6000 mAh
Battery Capacity4500 mAh
Battery Capacity3400 mAh to 3600 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, BDS
GPSYes, with A-GPS, GLONASS, BDS
GPSYes, with A-GPS, GLONASS, GALILEO, BDS
Radio
RadioFM radio, RDS, recording
RadioFM radio, recording
RadioFM radio
USB
USB2.0, Type-C 1.0 reversible connector
USB2.0, Type-C 1.0 reversible connector
USB2.0, Type-C 1.0 reversible connector
SIM
SIMDual SIM (Nano-SIM, dual stand-by)
SIMHybrid Dual SIM (Nano-SIM, dual stand-by)
SIMHybrid Dual SIM (Nano-SIM, dual stand-by)
Network Support
Network SupportGSM / HSPA / LTE
Network SupportGSM / HSPA / LTE
Network SupportGSM / HSPA / LTE
NFC
NFC
NFCYes
NFCYes

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

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