Oppo K9x vs Oppo A91
Comparing 2 products
Basic Information
General Overview
Device Type
Bar
Bar
Model
Oppo K9x
PCPM00
Announced
2021, December
2019, December
Released
2021, December
2019, December
Status
Available
Available
Design
Type
Bar
Bar
Dimensions
159.1 x 73.4 x 7.9 mm (6.26 x 2.89 x 0.31 in)
7.9 mm thickness
Weight
172 g (6.07 oz)
172 g (6.07 oz)
Colors
Black, Blue
Dark Blue, Red, Blue
Network
2G Network
Yes
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
CDMA 800 & TD-SCDMA
3G Network
Yes
HSDPA 850 / 1700(AWS) / 1900 / 2100
4G Network
Yes
LTE band 1(2100), 3(1800), 4(1700/2100), 5(850), 8(900), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500)
5G Network
Yes
-
SIM
Nano SIM
Nano SIM
Dual SIM
Yes, Dual SIM (Nano-SIM, dual stand-by)
Yes, Dual SIM (Nano-SIM, dual stand-by)
Display
Display Type
IPS LCD
AMOLED
Size
6.5 inches, 102.0 cm2 (~87.3% screen-to-body ratio)
6.4 inches, 98.9 cm2
Resolution
1080 x 2400 pixels
1080 x 2400 pixels
Display Colors
16M colors or more
16M colors
Pixel Density
405 ppi density
411 ppi density
Touch Screen
Yes
Capacitive Touchscreen
Features
90Hz
-
Media
FM Radio
No
Yes
Earphone Jack
Yes
Yes
Camera
Camera Set
Triple Cameras
Quad Cameras
Main Camera
64 MP, f/1.8, (wide), 1/1.97”, 0.7µm, PDAF
48 MP, f/1.8, 26mm (wide), 1/2.0", 0.8µm, PDAF
2nd Camera
8 MP, f/2.2, (ultrawide)
8 MP, f/2.2, 13mm (ultrawide), 1/4.0", 1.12µm
3rd Camera
2 MP, f/2.4, (depth)
2 MP, f/2.4, 1/5", 1.75µm (dedicated macro camera)
Camera Video
1080p@30fps, gyro-EIS
2160p@30fps, 1080p@30fps
Features
HDR, panorama
HDR, panorama
Flash
LED Flash
LED Flash
Selfie Set
Single Camera
Single Camera
Selfie Camera
16 MP, f/2.4, (wide), 1/3.0”, 1.0µm
16 MP, f/2.0, 26mm (wide), 1/3.1", 1.0µm
Selfie Video
1080p@30fps
1080p@30fps
4th Camera
-
2 MP, f/2.4, 1/5", 1.75µm, depth sensor
Features
-
HDR
Software
OS
Android 11
Android 9.0 (Pie)
User Interface
ColorOS 11.X
ColorOS 6.1
Hardware
Chipset
MediaTek Dimensity 810 5G (6 nm)
Mediatek MT6771V Helio P70 (12nm)
CPU
Octa-core (2x2.4 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
Octa-core (4x2.1 GHz Cortex-A73 & 4x2.0 GHz Cortex-A53)
GPU
Mali-G57 MC2
Mali-G72 MP3
RAM
6/8 GB
8 GB
Internal Storage
128/256 GB
128 GB
Card Slot
Yes microSD, (dedicated slot)
Yes, microSD, up to 256 GB (dedicated slot)
Sensors
Fingerprint (side-mounted), accelerometer, gyro, proximity, compass
Fingerprint (under display, optical), accelerometer, gyro, proximity, compass
Connectivity
Bluetooth
5.0, A2DP, LE
5.0, A2DP, LE, aptX HD
Wi-fi
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Wi-fi Hotspot
Yes
Yes
USB
USB Type-C 2.0, USB On-The-Go
2.0, Type-C 1.0 reversible connector, USB On-The-Go
GPS
Yes, with A-GPS, GLONASS, GALILEO, BDS, QZSS
Yes, with A-GPS
NFC
No
No
Data
GPRS
Yes
Yes
EDGE
Yes
Yes
Speed
HSPA 42.2/5.76 Mbps, LTE-A, 5G
HSPA 42.2/11.5 Mbps, LTE-A
Battery
Battery Type
Li-Ion (Lithium Ion)
Li-Poly (Lithium Polymer)
Capacity
5000 mAh, Battery
4025 mAh battery
Placement
Non-removable
Non-removable
Fast Charging
Yes, 30W
Yes, 30W: 50% in 30 min (VOOC Flash Charge 4.0)