OnePlus Nord 3 vs Oppo K9

Network
2G network

GSM 850, 900, 1800, 1900; CDMA 800

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

HSDPA 800, 850, 900, 1700(AWS), 1900, 2100

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

LTE frequency band 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 25, 26, 28, 32, 38, 39, 40, 41, 66 - global version; 1, 3, 4, 5, 8, 28, 34, 38, 39, 40, 41 - India

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

5G band 1, 2, 3, 5, 7, 8, 12, 20, 25, 28, 38, 40, 41, 66, 77, 78 SA/NSA - global version; 1, 3, 5, 8, 28, 40, 41, 77, 78 SA/NSA - India

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
EV-DO speed

EV-DO Rev.A 3.1 Mbps download, 1.8 Mbps upload

-
LTE speed

LTE, Cat18, 1566 Mbps download, 211 Mbps upload

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

Yes

Yes
EDGE

Yes

Yes

Design
Build

Glass front (Dragontrail Glass), glass back (Gorilla Glass 5), plastic frame

Aluminium alloy, glass
SIM

Dual SIM (Nano-SIM, dual stand-by)

Dual SIM (Nano-SIM, dual stand-by)
Height

162 mm

159.1 mm
Width

75.1 mm

73.4 mm
Thickness

8.2 mm

7.9 mm
Weight

193.5 g

172 g
Waterproof

IP54

-
Dust proof

IP54

-
Colors

Gray, Green

Aurora, Black

Display
Display type

Fluid AMOLED

Super AMOLED
Physical size

6.74 inches

6.43 inches
Resolution

1240 x 2772 pixels

1080 x 2400 pixels
Pixel density

390 ppi

409 ppi
Display colors

1073741824

16777216
Protection

Scratch resistant, 2.5D curved glass screen, Dragontrail glass

Scratch resistant, 2.5D curved glass screen
Display features

120Hz, HDR10+, 1450 nits (peak)

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

Hardware
CPU

Octa-core

Octa-core
CPU

Single-core 3.05 GHz Cortex-X2

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

Triple-core 2.85 GHz Cortex-A710

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

Quad-core 1.8 GHz Cortex-A510

Hexa-core 1.8 GHz Kryo 475 Silver
Chipset

Mediatek MT6983 Dimensity 9000

Qualcomm SM7250-AC Snapdragon 768G 5G
GPU

Mali-G710 MC10

Adreno 620
Memory RAM

8 GB

8 GB
Internal storage

16 GB

128, 256 GB
Memory card

No

No
Storage

UFS 3.1

-

Main camera
Camera type

Triple

Triple
Main camera

(wide) , 50 MP, f/1.8 , 24 mm, 1/1.56" , 1.0 µm

(wide) , 64 MP, f/1.7 , 1/2.0" , 0.8 µm, 80˚ , 20x digital zoom
(ultrawide) , 8 MP, f/2.2 , 1/4" , 1.12 µm

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

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

8120 x 6180 pixels

9280 x 6920 pixels
Primary camera video

4K@30/60fps, 1080p@30/60/120fps, gyro-EIS

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

LED flash

LED flash
Camera features

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

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) , 16 MP, f/2.4 , 24 mm, 1.0 µm

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

-

6560 x 4928 pixels
Selfie camera features

Face unlock, HDR, face detection, digital image stabilization

Face unlock, digital image stabilization
Selfie camera video

1080p@30fps, gyro-EIS

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
WLAN WiFi Dual Band

Yes

Yes
USB

Type-C 2.0

Type-C 2.0
USB On-The-Go

Yes

Yes
Bluetooth

v5.2

v5.0
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

Yes
Bluetooth AptX

-

aptX HD
Infrared

Yes

-
NFC

Yes

No
GPS

Yes

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

5000 mAh

4300 mAh
Battery removable

Non-removable

Non-removable
Fast battery charging

Yes, 80W (60% in 15 min, 100% in 32 min)

VOOC 4.0 (100% in 35 min)