Oppo K1 vs Xiaomi Redmi Note 7 vs Apple iPhone 6S Plus

Height
Height6.23 inches
Height6.27 inches
Height6.23 inches
Width
Width2.97 inches
Width2.96 inches
Width3.07 inches
Thickness
Thickness0.29 inches
Thickness0.32 inches
Thickness0.29 inches
Weight
Weight156 g
Weight186 g
Weight192 g
Color
ColorBlue, Red, Silver Green
ColorBlue, Black, Twilight Gold
ColorSpace Gray, Silver, Gold, Rose Gold
Color
ColorSilver Green
ColorTwilight Gold
ColorRose Gold
Build
Build
BuildFront/back glass (Gorilla Glass 5), plastic frame
BuildFront glass, aluminum body

Screen Size
Screen Size6.4 inches
Screen Size6.3 inches
Screen Size5.5 inches
Display Type
Display TypeSuper AMOLED capacitive touchscreen
Display TypeIPS LCD capacitive touchscreen
Display TypeIPS LCD capacitive touchscreen
Display Resolution
Display Resolution1080 x 2340 pixels
Display Resolution1080 x 2340 pixels
Display Resolution1080 x 1920 pixels
Pixel Density
Pixel Density402 ppi
Pixel Density409 ppi
Pixel Density401 ppi
Protection
ProtectionCorning Gorilla Glass 5
ProtectionCorning Gorilla Glass 5
ProtectionIon-strengthened glass, oleophobic coating
Screen to Body Ratio
Screen to Body Ratio84.50%
Screen to Body Ratio81.40%
Screen to Body Ratio67.70%
Display Type
Display TypeSuper AMOLED
Display TypeIPS LCD
Display TypeIPS LCD
Display Size
Display Size6.25 inch to 6.5 inch
Display Size6.25 inch to 6.5 inch
Display Size5.25 inch to 5.5 inch
Screen Resolution
Screen Resolution
Screen Resolution1080X2340
Screen Resolution1080X1920

RAM
RAM6 GB RAM
RAM3 GB RAM
RAM2 GB RAM
GPU
GPUAdreno 512
GPUAdreno 512
GPUPowerVR GT7600 (six-core graphics)
OS
OSAndroid 8.1 (Oreo) ColorOS 5.2
OSAndroid 9.0 (Pie) MIUI 10
OSiOS 9, upgradable to iOS 12.3
Chipset GP
Chipset GPQualcomm SDM660 Snapdragon 660 (14 nm)
Chipset GPQualcomm SDM660 Snapdragon 660 (14 nm)
Chipset GPApple A9 (14 nm)
CPU
CPUOcta-core (4x2.0 GHz Kryo 260 4x1.8 GHz Kryo 260)
CPUOcta-core (4x2.2 GHz Kryo 260 4x1.8 GHz Kryo 260)
CPUDual-core 1.84 GHz Twister
Cores
Cores
Cores8
Cores2
Chipset
Chipset
ChipsetQualcomm SDM660 Snapdragon 660
ChipsetApple A9

Storage
Storage64 GB
Storage32 GB
Storage128 GB
RAM/Internal Storage
RAM/Internal Storage64 GB, 4/6 GB RAM
RAM/Internal Storage128 GB, 4 GB RAM or 64 GB, 4/6 GB RAM or 32 GB, 3 GB RAM
RAM/Internal Storage16/32/64/128 GB, 2 GB RAM
Expandable Memory
Expandable MemorymicroSD, up to 256 GB (dedicated slot)
Expandable MemorymicroSD, up to 256 GB (uses shared SIM slot)
Expandable MemoryNo

Dual Camera
Dual Camera16 MP, f/1.8, 1/2.8, 1.12 micron|2 MP, f/2.4, depth sensor
Dual Camera48 MP, f/1.8, (wide), 1/2, 0.8 micron|5 MP, f/2.2, depth sensor|or|12 MP, f/2.2, (wide), 1/2.9, 1.25 micron|2 MP, f/2.4, depth sensor
Dual Camera
Autofocus
AutofocusPDAF
AutofocusPDAF
AutofocusPDAF
Back Camera Video
Back Camera Video2160p30fps, 1080p30fps
Back Camera Video1080p30/60/120fps, (gyro-EIS)
Back Camera Video2160p30fps, 1080p60fps, 1080p120fps, 720p240fps
Back Camera Features
Back Camera FeaturesLED flash, HDR, panorama
Back Camera FeaturesDual-LED flash, HDR, panorama
Back Camera FeaturesDual-LED dual-tone flash, HDR
Single Camera
Single Camera
Single Camera
Single Camera12 MP, f/2.2, 29mm (standard), 1/3, 1.22 micron
OIS
OIS
OIS
OISOIS

Single Camera
Single Camera25 MP, f/2.0, 1/2.8, 0.9 micron
Single Camera13 MP, f/2.0, 1.12 micron
Single Camera5 MP, f/2.2, 31mm (standard)
Front Camera Video
Front Camera Video1080p30fps
Front Camera Video1080p30fps
Front Camera Video1080p30fps
Front Camera Features
Front Camera FeaturesHDR
Front Camera FeaturesHDR
Front Camera FeaturesFace detection, HDR, panorama

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 Features16-bit/44.1kHz audio|Active noise cancellation with dedicated mic

Battery Capacity
Battery Capacity3600 mAh
Battery Capacity4000 mAh
Battery Capacity2750 mAh
User Replaceable
User ReplaceableNon-removable
User ReplaceableNon-removable
User ReplaceableNon-removable
Charging
ChargingFast battery charging 10W
ChargingFast battery charging 18W (Quick Charge 4)
Charging
Battery Capacity
Battery Capacity3400 mAh to 3600 mAh
Battery Capacity4000 mAh
Battery Capacity2750 mAh
Battery Type
Battery TypeLi-Ion
Battery TypeLi-Po
Battery TypeLi-Ion
Talk Time
Talk Time
Talk Time
Talk TimeUp to 24 h (3G)
Music Time
Music Time
Music Time
Music TimeUp to 80 h

WLAN
WLANWi-Fi 802.11 /b/g/n/ac, dual-band, WiFi 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, hotspot
GPS
GPSYes, with A-GPS
GPSYes, with A-GPS, GLONASS, BDS
GPSYes, with A-GPS, GLONASS, GALILEO, QZSS
Radio
RadioNo
RadioFM radio, recording
RadioNo
USB
USBmicroUSB 2.0, USB On-The-Go
USB2.0, Type-C 1.0 reversible connector
USB2.0, proprietary reversible connector
SIM
SIMDual SIM (Nano-SIM, dual stand-by)
SIMHybrid Dual SIM (Nano-SIM, dual stand-by)
SIMNano-SIM
Network Support
Network SupportGSM / HSPA / LTE
Network SupportGSM / HSPA / LTE
Network SupportGSM / CDMA / HSPA / EVDO / LTE
NFC
NFC
NFC
NFCYes (Apple Pay only)

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

Announced On
Announced On2018, October
Announced On2019, January
Announced On2015, September
Status
StatusAvailable. Released 2018, October
StatusAvailable. Released 2019, January
StatusAvailable. Released 2015, September