Samsung galaxy M30s vs OnePlus 7 vs Redmi K20 Pro

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

Weight
Weight188 g
Weight182 g
Weight191 g
Color
ColorOpal Black, Sapphire Blue, Pearl White
ColorMirror Gray, Red
ColorCarbon black, Flame red, Glacier blue, Summer Honey, Pearl White
Build
BuildFront glass, plastic body
BuildFront/back glass, aluminum frame
BuildFront/back glass (Gorilla Glass 5), aluminum frame
Color
ColorPearl White
ColorRed
ColorPearl White
Height
Height
Height6.21 inches
Height6.17 inches
Width
Width
Width2.94 inches
Width2.93 inches
Thickness
Thickness
Thickness0.32 inches
Thickness0.35 inches

Screen Size
Screen Size6.4 inches
Screen Size6.41 inches
Screen Size6.39 inches
Display Type
Display TypeSuper AMOLED capacitive touchscreen
Display TypeOptic AMOLED capacitive touchscreen
Display TypeSuper AMOLED 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 Density402 ppi
Pixel Density403 ppi
Aspect Ratio
Aspect Ratio20:09
Aspect Ratio
Aspect Ratio19.5:9
Screen Resolution
Screen Resolution1080X2340
Screen Resolution1080X2340
Screen Resolution1080X2340
Display Size
Display Size6.25 inch to 6.5 inch
Display Size6.25 inch to 6.5 inch
Display Size6.25 inch to 6.5 inch
Protection
Protection
ProtectionCorning Gorilla Glass
ProtectionCorning Gorilla Glass 5
Screen to Body Ratio
Screen to Body Ratio
Screen to Body Ratio85.50%
Screen to Body Ratio86.1%

OS
OSAndroid 9.0 (Pie) One UI
OSAndroid 9.0 (Pie) OxygenOS 9.5.4
OSAndroid 9.0 (Pie) MIUI 10
GPU
GPUMali-G72 MP3
GPUAdreno 640
GPUAdreno 640
RAM
RAM6 GB RAM
RAM6 GB RAM
RAM8 GB RAM
Cores
Cores8
Cores8
Cores8
Chipset GP
Chipset GPExynos 9611 (10nm)
Chipset GPQualcomm SDM855 Snapdragon 855 (7 nm)
Chipset GPQualcomm SDM855 Snapdragon 855 (7 nm)
CPU
CPUOcta-core (4x2.3 GHz Cortex-A73 4x1.7 GHz Cortex-A53)
CPUOcta-core (1x2.84 GHz Kryo 485 3x2.42 GHz Kryo 485 4x1.80 GHz Kryo 485)
CPUOcta-core (1x2.84 GHz Kryo 485 3x2.42 GHz Kryo 485 4x1.78 GHz Kryo 485)

Storage
Storage128 GB
Storage128 GB
Storage256 GB
RAM/Internal Storage
RAM/Internal Storage64GB 4GB RAM, 128GB 6GB RAM
RAM/Internal Storage256 GB, 8 GB RAM or 128 GB, 6 GB RAM
RAM/Internal Storage128GB 6GB RAM or 256GB 8GB RAM
Expandable Memory
Expandable MemorymicroSD, up to 1 TB (dedicated slot)
Expandable MemoryNo
Expandable MemoryNo

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 Camera48 MP, f/1.8, 26mm (wide), 1/2, 0.8 micron|8 MP, f/2.4, 53mm (telephoto), 1/4, 1.12 micron, 2x optical zoom|13 MP, f/2.4, 12mm (ultrawide), 1/3, 1.12 micron
Autofocus
AutofocusPDAF
AutofocusPDAF
AutofocusPDAF, Laser AF, PDAF, Laser AF
Back Camera Video
Back Camera Video2160p30fps, 1080p30fps, gyro-EIS
Back Camera Video2160p30/60fps, 1080p30/60/240fps, 720p480fps, Auto HDR, gyro-EIS
Back Camera Video2160p30/60fps, 1080p30/120/240fps, 1080p960fps
Back Camera Features
Back Camera FeaturesLED flash, panorama, HDR
Back Camera FeaturesDual-LED flash, HDR, panorama
Back Camera FeaturesDual-LED flash, HDR, panorama
Dual Camera
Dual Camera
Dual Camera48 MP, f/1.7, (wide), 1/2, 0.8 micron|5MP, f/2.4, 1.12 micron, depth sensor
Dual Camera
OIS
OIS
OISOIS
OIS

Single Camera
Single Camera16 MP, f/2.0
Single Camera16 MP, f/2.0, 25mm (wide), 1/3.1, 1.0 micron
Single CameraMotorized pop-up 20 MP, f/2.2, 0.8 micron
Front Camera Video
Front Camera Video1080p30fps
Front Camera Video1080p30fps, gyro-EIS
Front Camera Video1080p30fps
Front Camera Features
Front Camera FeaturesHDR
Front Camera FeaturesAuto-HDR
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|Dolby Atmos sound
Audio Features24-bit/192kHz audio|Active noise cancellation with dedicated mic

Battery Capacity
Battery Capacity6000 mAh
Battery Capacity3700 mAh
Battery Capacity4000 mAh
User Replaceable
User ReplaceableNon-removable
User ReplaceableNon-removable
User ReplaceableNon-removable
Charging
ChargingFast battery charging 15W
ChargingFast battery charging 20W
ChargingFast battery charging 27W (Quick Charge 4)
Battery Capacity
Battery Capacity6000 mAh
Battery Capacity3700 mAh
Battery Capacity4000 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, WiFi Direct, DLNA, 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 dual-band A-GPS, GLONASS, BDS, GALILEO, SBAS
GPSYes, with dual-band A-GPS, GLONASS, BDS, GALILEO
Radio
RadioFM radio, RDS, recording
RadioNo
RadioYes
USB
USB2.0, Type-C 1.0 reversible connector
USB3.1, Type-C 1.0 reversible connector, USB On-The-Go
USB2.0, Type-C 1.0 reversible connector, USB On-The-Go
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 / CDMA / HSPA / LTE
Network SupportGSM / HSPA / LTE
NFC
NFC
NFCYes
NFCYes (China only)

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

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