Xiaomi Redmi 5 vs Xiaomi Redmi 6A vs Oppo A3s

Height
Height5.98 inches
Height5.81 inches
Height6.15 inches
Width
Width2.87 inches
Width2.81 inches
Width2.98 inches
Thickness
Thickness0.30 inches
Thickness0.33 inches
Thickness0.32 inches
Weight
Weight157 g
Weight145 g
Weight168 g
Color
ColorBlack, Gold, Light Blue, Rose Gold
ColorGrey, Blue, Gold, Rose Gold
ColorRed, Dark Purple
Build
BuildFront glass, plastic frame ends, aluminum back
Build
Build
Color
ColorRose Gold
ColorRose Gold
ColorDark Purple

Screen Size
Screen Size5.7 inches
Screen Size5.45 inches
Screen Size6.2 inches
Display Type
Display TypeIPS LCD capacitive touchscreen
Display TypeIPS LCD capacitive touchscreen
Display TypeIPS LCD capacitive touchscreen
Display Resolution
Display Resolution720 x 1440 pixels
Display Resolution720 x 1440 pixels
Display Resolution720 x 1520 pixels
Pixel Density
Pixel Density282 ppi
Pixel Density295 ppi
Pixel Density271 ppi
Protection
ProtectionCorning Gorilla Glass (unspecified version)
Protection
ProtectionCorning Gorilla Glass 3
Screen to Body Ratio
Screen to Body Ratio75.90%
Screen to Body Ratio72.70%
Screen to Body Ratio81.20%
Display Type
Display TypeIPS LCD
Display TypeIPS LCD
Display TypeIPS LCD
Screen Resolution
Screen Resolution720X1440
Screen Resolution720X1440
Screen Resolution720X1520
Display Size
Display Size5.5 inch to 5.75 inch
Display Size5.25 inch to 5.5 inch
Display Size6 inch to 6.25 inch

Cores
Cores8
Cores4
Cores8
Chipset
ChipsetQualcomm SDM450 Snapdragon 450
ChipsetMediatek Helio A22
ChipsetQualcomm SDM450 Snapdragon 450
OS
OSAndroid 7.1.2 (Nougat) MIUI 9.1
OSAndroid 8.1 (Oreo), planned upgrade to Android 9.0 (Pie) MIUI 9.0
OSAndroid 8.1 (Oreo) ColorOS 5.1
RAM
RAM2 GB RAM
RAM2 GB RAM
RAM2 GB RAM
GPU
GPUAdreno 506
GPUPowerVR GE8320
GPUAdreno 506
Chipset GP
Chipset GPQualcomm SDM450 Snapdragon 450 (14 nm)
Chipset GPMediatek MT6761 Helio A22 (12 nm)
Chipset GPQualcomm SDM450 Snapdragon 450 (14 nm)
CPU
CPUOcta-core 1.8 GHz Cortex-A53
CPUQuad-core 2.0 GHz Cortex-A53
CPUOcta-core 1.8 GHz Cortex-A53

Storage
Storage16 GB
Storage16 GB
Storage16 GB
RAM/Internal Storage
RAM/Internal Storage32 GB, 3/4 GB RAM or 16 GB, 2 GB RAM
RAM/Internal Storage32 GB, 3 RAM or 16 GB, 2 GB RAM
RAM/Internal Storage16 GB, 2 GB RAM
Expandable Memory
Expandable MemorymicroSD, up to 128 GB (uses shared SIM slot)
Expandable MemorymicroSD, up to 256 GB (dedicated slot)
Expandable MemorymicroSD, up to 256 GB (dedicated slot)

Single Camera
Single Camera12 MP, f/2.2, 1.25 m
Single Camera13 MP, f/2.2
Single Camera
Autofocus
AutofocusPDAF
AutofocusPDAF
AutofocusAF
Back Camera Video
Back Camera Video1080p30fps
Back Camera Video1080p30fps
Back Camera Video1080p30fps
Back Camera Features
Back Camera FeaturesLED flash, HDR, panorama
Back Camera FeaturesLED flash, HDR, panorama
Back Camera FeaturesLED flash, HDR, panorama
Dual Camera
Dual Camera
Dual Camera
Dual Camera13 MP, f/2.2|2 MP, f/2.4, depth sensor

Single Camera
Single Camera5 MP
Single Camera5 MP, f/2.2
Single Camera8 MP, f/2.2
Front Camera Video
Front Camera Video1080p30fps
Front Camera Video
Front Camera Video

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

Battery Capacity
Battery Capacity3300 mAh
Battery Capacity3000 mAh
Battery Capacity4230 mAh
User Replaceable
User ReplaceableNon-removable
User ReplaceableNon-removable
User ReplaceableNon-removable
Charging
ChargingFast battery charging 10W
Charging
ChargingFast battery charging 20W (VOOC Flash Charge)
Battery Capacity
Battery Capacity3300 mAh
Battery Capacity3000 mAh
Battery Capacity4230 mAh
Battery Type
Battery TypeLi-Po
Battery TypeLi-Ion
Battery TypeLi-Ion

WLAN
WLANWi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot
WLANWi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot
WLANWi-Fi 802.11 b/g/n, WiFi Direct, hotspot
GPS
GPSYes, with A-GPS, GLONASS, BDS
GPSYes, with A-GPS, GLONASS, BDS
GPSYes, with A-GPS
Radio
RadioFM radio
RadioFM radio
RadioFM radio
USB
USBmicroUSB 2.0, USB On-The-Go
USBmicroUSB 2.0
USBmicroUSB 2.0, USB On-The-Go
SIM
SIMHybrid Dual SIM (Nano-SIM, dual stand-by)
SIMDual SIM (Nano-SIM, dual stand-by)
SIMDual SIM (Nano-SIM, dual stand-by)
Network Support
Network SupportGSM / CDMA / HSPA / LTE
Network SupportGSM / CDMA / HSPA / LTE
Network SupportGSM / HSPA / LTE

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

Announced On
Announced On2017, December
Announced On2018, June
Announced On2018, July
Status
StatusAvailable. Released 2017, December
StatusAvailable. Released 2018, June
StatusAvailable. Released 2018, July