Compare: Oppo K9 vs Oppo A91
General Features
						  - 
								6.43"Amoled
- 
								64 MPTriple Camera
- 
								8 GB RAMSnapdragon 768G 5G
- 
								4300mAhLi-Po
Pros
							Dual sim support
								High RAM capacity
								High battery capacity
								High megapixel camera
							Cons
							No SD Card slot
								
								
								
							 Brand
							   Oppo
							Announced
							   2021, May 06
							Release Date
							   2021, May 11
							Status
								Available
							Out Price
								260 EUR
							Display 
							Type
								Amoled
							Aspect Ratio and PPI
							   20:9 ratio - 409 ppi density
							Size
							   6.43 inches, 99.8 cm2 (~85.5% screen-to-body ratio)
							Resolution
							   1080 x 2400 pixels
							Peak brightness (nit)
							   430 nits
							Protection
							   
							Features
							   Capacitive
Multi-touch
Scratch resistant2.5D curved glass screen
90 Hz refresh rate
							Multi-touch
Scratch resistant2.5D curved glass screen
90 Hz refresh rate
BODY 
							Colors
							    Black
  Aurora
Dimensions
							   159.1 • 73.4 • 7.9 mm (6.26 • 2.89 • 0.31 in)
							Weight
							   172 g (6.07 oz)
							Material
							   
							Certification
							   
							Waterproof
							   
							Sensors
							   Fingerprint (under display, optical), accelerometer, gyro, proximity, compass
							3.5mm Jack
							   Yes
							NFC
							   No
							Infrared
							   
							USB Type
							   USB Type-C 2.0, USB On-The-Go
							Loudspeaker Loudness (dB)
							   Yes
							PLATFORM 
							Chipset
							   Qualcomm Snapdragon 768G
							CPU
							   Octa-core (1x2.8 GHz Kryo 475 Prime & 1x2.4 GHz Kryo 475 Gold & 6x1.8 GHz Kryo 475 Silver)
							Bits
							   64 Bit
							Cores
							   8 Cores
							Process technology
							   7 nm
							GPU
							   Qualcomm Adreno 620
							GPU Cores
							   
							GPU Frequency
							   Yes
							OS
							   Android 11, ColorOS 11.1
							MEMORY
							RAM Capacity
							   8 GB
							RAM Type
							   LPDDR4X 
							Storage
							   128/256 GB
							SD Card Slot
							   No
							PERFORMANCE SCORES
							Antutu Score
							   449.750
										   Antutu
											  v9
										   Geek Bench Score
							   GeekBench
											  Single Score
										   BATTERY
							Capacity
							   4300
							Type
							   Li-Po
							Quick Charge Technology
							   65.0W
							Video Playback Time
							   
							Fast Charging
							   65W
							Wireless Charging
							   No
							Main Camera
						  First Camera
							   Resolution
								  64 MP 
							   Sensor
								  Unknown
							   Aperture
								  f/1.7
							   Pixel Size
								  
							   Sensor Size
								  
							   Optical Zoom
								  
							   Lens
								   (wide)
							   Extra
								  Autofocus
Continuous autofocus
Continuous shooting
Digital zoom
Digital image stabilization
Optical image stabilization
Geotagging
Panorama
HDR
Touch focus
Face detection
White balance settings
IS
							   Continuous autofocus
Continuous shooting
Digital zoom
Digital image stabilization
Optical image stabilization
Geotagging
Panorama
HDR
Touch focus
Face detection
White balance settings
IS
Second Camera
							   Resolution
								  8 MP 
							   Sensor
								  Unknown
							   Aperture
								  f/2.2
							   Pixel Size
								  
							   Sensor Size
								  
							   Optical Zoom
								  
							   Lens
								   (ultrawide)
							   Extra
								  
							   Third Camera
							   Resolution
								  2 MP 
							   Sensor
								  Unknown
							   Aperture
								  f/2.4
							   Pixel Size
								  
							   Sensor Size
								  
							   Optical Zoom
								  
							   Lens
								   (macro)
							   Extra
								  
							   Fourth Camera
							   Resolution
								  
							   Sensor
								  
							   Aperture
								  
							   Pixel Size
								  
							   Sensor Size
								  
							   Optical Zoom
								  
							   Lens
								  
							   Extra
								  
							   Fifth Camera
							   Resolution
								  
							   Sensor
								  
							   Aperture
								  
							   Pixel Size
								  
							   Sensor Size
								  
							   Optical Zoom
								  
							   Lens
								  
							   Extra
								  
							   Sixth Camera
							   Resolution
								  
							   Sensor
								  
							   Aperture
								  
							   Pixel Size
								  
							   Sensor Size
								  
							   Optical Zoom
								  
							   Lens
								  
							   Extra
								  
							   Image Resolution
							   64 megapixels 
							Video Resolution and FPS
							   4K@30fps, 1080p@30/60/120fps; gyro-EIS
							Optical Stabilisation (OIS)
							   No
							Electronic Stabilisation (EIS)
							   Yes
							Slow Motion Video
							   Yes, 240 fps
							Features
							   
							DxOMark Score
	
							Mobile Score (Rear)
							   Mobile
										   Selfie Score
							   Selfie
										   Selfie Camera
							  First Camera
							   Resolution
								  32 Mpx 
							   Sensor
								  Samsung S5KGD1
							   Aperture
								  f/2.4
							   Pixel Size
								  
							   Sensor Size
								  
							   Extra
								  
							   Second Camera
							   Resolution
								  
							   Sensor
								  
							   Aperture
								  
							   Pixel Size
								  
							   Sensor Size
								  
							   Extra
								  
							   Third Camera
							   Resolution
								  
							   Sensor
								  
							   Aperture
								  
							   Pixel Size
								  
							   Sensor Size
								  
							   Extra
								  
							   Video Resolution and FPS
							   1080p@30fps
							Features
							   
							CONNECTIVITY
							Technology
							   GSM / CDMA / HSPA / CDMA2000 / LTE / 5G
							2G Bands
							   GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 CDMA 800 
							3G Bands
							   HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100  CDMA2000 1x 
							4G Bands
							   1, 3, 4, 5, 8, 28, 34, 38, 39, 40, 41
							5G Bands
							   1, 3, 28, 41, 77, 78 SA/NSA
							TD-SCDMA
							   TD-SCDMA 1880-1920 MHz, TD-SCDMA 2010-2025 MHz
							Navigation
							   Yes, with A-GPS, GLONASS, GALILEO, BDS, QZSS
							Network Speed
							   HSPA 42.2/5.76 Mbps, LTE-A, 5G
							SIM Card Type
							   Dual SIM (Nano-SIM, dual stand-by)
							Number of SIM Area
							   2 SIM
							Wi-Fi
							   Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot
							Bluetooth
							   5.0, A2DP, LE, aptX HD
							OTHERS
							VoLTE
							   Yes
							FM Radio
							   
							SAR The FCC limit is 1.6 W/kg measured in a volume of 1 gram of tissue.
							Body SAR (EU)
							   
							Head SAR (EU)
							   
							Body SAR (USA)
							   
							Head SAR (USA)
							   
							Additional
							   
							Extra
							Cooling System
							   Yes
							HDMI
							   
							General Features
						  - 
								6.4"AMOLED
- 
								48MPQuad Camera
- 
								8GB RAMMT6771V Helio P70
- 
								4025mAhLi-Po
Pros
							SD Card area available
								FM Radio support
								Dual sim support
								High RAM capacity
							Cons
							Not water resistant
								No Infrared
								
								
							 Brand
							   Oppo
							Announced
							   December 20, 2019
							Release Date
							   December 26, 2019
							Status
								Coming soon
							Out Price
								About 260 EUR
							Display 
							Type
								AMOLED 
							Aspect Ratio and PPI
							   20:9 ratio - 411 ppi density
							Size
							   6.4 inches, 98.9 cm2
							Resolution
							   1080 x 2400 pixels
							Peak brightness (nit)
							   
							Protection
							   Corning Gorilla Glass 5
							Features
							   
							BODY 
							Colors
							    Dark Blue
  Red
  Blue
Dimensions
							   160.2 • 73.3 • 7.9 mm
							Weight
							   172 gr (6.07 oz)
							Material
							   Glass, Aluminiumalloy
							Certification
							   
							Waterproof
							   No
							Sensors
							   Fingerprint (under display, optical), accelerometer, gyro, proximity, compass
							3.5mm Jack
							   Yes
							NFC
							   No
							Infrared
							   No
							USB Type
							   2.0, Type-C 1.0 reversible connector, USB On-The-Go
							Loudspeaker Loudness (dB)
							   
							PLATFORM 
							Chipset
							   Mediatek Helio P70 (MT6771V)
							CPU
							   Octa-core (4x2.1 GHz Cortex-A73 & 4x2.0 GHz Cortex-A53)
							Bits
							   64Bit
							Cores
							   8 Core
							Process technology
							   12 nm
							GPU
							   Mali-G72 MP3
							GPU Cores
							   3
							GPU Frequency
							   
							OS
							   Android 9.0 (Pie); ColorOS 6.1
							MEMORY
							RAM Capacity
							   8GB RAM
							RAM Type
							   LPDDR4X
							Storage
							   128GB ROM
							SD Card Slot
							   microSD, up to 256 GB (dedicated slot)
							PERFORMANCE SCORES
							Antutu Score
							   135k
										   Antutu
											  v7 
										   Geek Bench Score
							   GeekBench
											  Single Score
										   BATTERY
							Capacity
							   4025
							Type
							   Li-Po
							Quick Charge Technology
							   VOOC 3.0
							Video Playback Time
							   
							Fast Charging
							   Yes, 20W
							Wireless Charging
							   No
							Main Camera
						  First Camera
							   Resolution
								  
							   Sensor
								  Unknown
							   Aperture
								  f/1.8
							   Pixel Size
								  
							   Sensor Size
								  
							   Optical Zoom
								  
							   Lens
								  
							   Extra
								  
							   Second Camera
							   Resolution
								  
							   Sensor
								  
							   Aperture
								  
							   Pixel Size
								  
							   Sensor Size
								  
							   Optical Zoom
								  
							   Lens
								  
							   Extra
								  
							   Third Camera
							   Resolution
								  
							   Sensor
								  
							   Aperture
								  
							   Pixel Size
								  
							   Sensor Size
								  
							   Optical Zoom
								  
							   Lens
								  
							   Extra
								  
							   Fourth Camera
							   Resolution
								  
							   Sensor
								  
							   Aperture
								  
							   Pixel Size
								  
							   Sensor Size
								  
							   Optical Zoom
								  
							   Lens
								  
							   Extra
								  
							   Fifth Camera
							   Resolution
								  
							   Sensor
								  
							   Aperture
								  
							   Pixel Size
								  
							   Sensor Size
								  
							   Optical Zoom
								  
							   Lens
								  
							   Extra
								  
							   Sixth Camera
							   Resolution
								  
							   Sensor
								  
							   Aperture
								  
							   Pixel Size
								  
							   Sensor Size
								  
							   Optical Zoom
								  
							   Lens
								  
							   Extra
								  
							   Image Resolution
							   8000 x 6000 pixels, 48 MP
							Video Resolution and FPS
							   3840x2160 (4K UHD) - (30 fps)
1920x1080 (Full) - (30 fps)
1280x720 (HD) - (30/120 fps)
							1920x1080 (Full) - (30 fps)
1280x720 (HD) - (30/120 fps)
Optical Stabilisation (OIS)
							   No
							Electronic Stabilisation (EIS)
							   Yes
							Slow Motion Video
							   Yes, 120 fps
							Features
							   
							DxOMark Score
	
							Mobile Score (Rear)
							   Mobile
										   Selfie Score
							   Selfie
										   Selfie Camera
							  First Camera
							   Resolution
								  16 MP
							   Sensor
								  Unknown
							   Aperture
								  f/2.0
							   Pixel Size
								  
							   Sensor Size
								  
							   Extra
								  
							   Second Camera
							   Resolution
								  
							   Sensor
								  
							   Aperture
								  
							   Pixel Size
								  
							   Sensor Size
								  
							   Extra
								  
							   Third Camera
							   Resolution
								  
							   Sensor
								  
							   Aperture
								  
							   Pixel Size
								  
							   Sensor Size
								  
							   Extra
								  
							   Video Resolution and FPS
							   1080p@30fps
							Features
							   HDR
							CONNECTIVITY
							Technology
							   GSM / CDMA / HSPA / LTE
							2G Bands
							   GSM - 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
							3G Bands
							   HSDPA - 850 / 1700(AWS) / 1900 / 2100
							4G Bands
							   LTE Band - 1(2100), 3(1800), 4(1700/2100), 5(850), 8(900), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500)
							5G Bands
							   
							TD-SCDMA
							   TD-SCDMA 1880-1920 MHz
TD-SCDMA 2010-2025 MHz
							TD-SCDMA 2010-2025 MHz
Navigation
							   Yes, with A-GPS
							Network Speed
							   HSPA 42.2/11.5 Mbps, LTE-A
							SIM Card Type
							   Dual SIM (Nano-SIM, dual stand-by)
							Number of SIM Area
							   2
							Wi-Fi
							   Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot
							Bluetooth
							   5.0, A2DP, LE, aptX HD
							OTHERS
							VoLTE
							   Yes
							FM Radio
							   Yes
							SAR The FCC limit is 1.6 W/kg measured in a volume of 1 gram of tissue.
							Body SAR (EU)
							   
							Head SAR (EU)
							   
							Body SAR (USA)
							   
							Head SAR (USA)
							   
							Additional
							   
							Extra
							Cooling System
							   No
							HDMI
							   
							
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