Oppo F23 vs Oppo K9

Network
2G network

GSM 850, 900, 1800, 1900

GSM 850, 900, 1800, 1900; CDMA 800
3G network

HSDPA 900, 2100

HSDPA 800, 850, 900, 1700(AWS), 1900, 2100; CDMA2000 1x
4G network

LTE frequency band 1, 3, 5, 8, 40, 41

LTE frequency band 1, 3, 4, 5, 8, 28, 34, 38, 39, 40, 41
5G network

5G band 1, 3, 5, 8, 28, 40, 41, 77, 78 SA/NSA

5G band 1, 3, 28, 41, 77, 78 SA/NSA
HSDPA speed

42.2 Mbps

42.2 Mbps
HSUPA speed

5.76 Mbps

5.76 Mbps
LTE speed

LTE-A, 750 Mbps download, 211 Mbps upload

LTE-A, 1200 Mbps download, 210 Mbps upload
GPRS

Yes

Yes
EDGE

Yes

Yes

Display
Display type

IPS LCD

Super AMOLED
Physical size

6.72 inches

6.43 inches
Resolution

1080 x 2400 pixels

1080 x 2400 pixels
Pixel density

392 ppi

409 ppi
Display colors

16777216

16777216
Protection

Scratch resistant, 2.5D curved glass screen

Scratch resistant, 2.5D curved glass screen
Display features

120Hz, 550 nits (typ), 680 nits (HBM)

90Hz, 430 nits (typ), 750 nits (peak)

Hardware
CPU

Octa-core

Octa-core
CPU

Dual-core 2.2 GHz Kryo 660 Gold

Single-core 2.8 GHz Kryo 475 Prime
CPU(second)

Hexa-core 1.7 GHz Kryo 660 Silver

Single-core 2.4 GHz Kryo 475 Gold
CPU(third)

Hexa-core 1.8 GHz Kryo 475 Silver
Chipset

Qualcomm SM6375 Snapdragon 695 5G

Qualcomm SM7250-AC Snapdragon 768G 5G
GPU

Adreno 619

Adreno 620
Memory RAM

8 GB

8 GB
Internal storage

256 GB

128, 256 GB
Memory card

microSD, microSDHC, microSDXC

No
Memory card max

2 TB

-
Storage

UFS 2.2

-

Main camera
Camera type

Triple

Triple
Main camera

(wide) , 64 MP, f/1.8 , 79˚ , 26 mm, 0.7 µm

(wide) , 64 MP, f/1.7 , 80˚ , 0.8 µm, 1/2.0" , 20x digital zoom
(microscope) , 2 MP, f/3.3 , 34 mm

(ultrawide) , 8 MP, f/2.2 , 119˚
(depth) , 2 MP, f/2.4

(macro) , 2 MP, f/2.4
Primary camera resolution

9280 x 6920 pixels

9280 x 6920 pixels
Primary camera video

1080p@30fps

4K@30fps, 1080p@30/60/120fps; gyro-EIS
Primary camera flash

LED flash

LED flash
Camera features

Autofocus, continuous autofocus, continuous shooting, digital zoom, digital image stabilization, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode, macro-mode, phase detection autofocus, contrast detection autofocus

Autofocus, continuous autofocus, continuous shooting, digital zoom, digital image stabilization, optical image stabilization, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode, macro-mode, phase detection autofocus, contrast detection autofocus

Selfie camera
Selfie camera type

Single

Single
Selfie camera

(wide) , 32 MP, f/2.4 , 22 mm

(wide) , 32 MP, f/2.4 , 80˚ , 0.8 µm
Selfie camera resolution

6560 x 4928 pixels

6560 x 4928 pixels
Selfie camera features

Face unlock, HDR

Face unlock, digital image stabilization
Selfie camera video

1080p@30fps

1080p@30fps

Connectivity
WLAN

Wi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5Ghz, 802.11ac

Wi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5Ghz, 802.11ac
WLAN WiFi Hotspot

Yes

Yes
WLAN WiFi Direct

Yes

Yes
WLAN WiFi Dual Band

Yes

Yes
USB

Type-C 2.0

Type-C 2.0
USB On-The-Go

Yes

Yes
Bluetooth

v5.1

v5.0
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

Yes
Bluetooth AptX

aptX HD

aptX HD
Infrared

Yes

-
NFC

No

No
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

Yes

Yes
GALILEO

Yes

Yes
BDS

Yes

Yes
QZSS

Yes

Yes

Features
Sensors

Accelerometer, compass, fingerprint, gyroscope, proximity

Accelerometer, compass, fingerprint, gyroscope, proximity

Battery
Battery type

Li-Po

Li-Po
Battery capacity

500 mAh

4300 mAh
Battery removable

Non-removable

Non-removable
Fast battery charging

SuperVOOC, 67W (50% in 18 min)

VOOC 4.0 (100% in 35 min)
Talk time 3G

39 h

-