Oppo K11x vs vivo iQOO 9

Network
2G network

GSM 850, 900, 1800, 1900

GSM 850, 900, 1800, 1900
3G network

HSDPA 850, 900, 1700(AWS), 2100

HSDPA 850, 900, 1700(AWS), 1900, 2100
4G network

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

LTE frequency band 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 25, 26, 28, 34, 38, 39, 40, 41
5G network

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

5G band 1, 3, 5, 8, 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
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

Glass front, plastic frame, plastic back

Aluminium alloy, glass
SIM

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

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

165.5 mm

159.1 mm
Width

76 mm

75.1 mm
Thickness

8.3 mm

8.6/8.7 mm
Weight

195 g

200/202 g
Colors

Black, Blue

Alpha, Legend, Phoenix

Display
Display type

IPS LCD

AMOLED
Physical size

6.72 inches

6.56 inches
Resolution

1080 x 2400 pixels

1080 x 2376 pixels
Pixel density

392 ppi

398 ppi
Display colors

16777216

1073741824
Protection

-

Scratch resistant
Display features

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

120Hz, HDR10+, 1200 nits (peak)

Main camera
Camera type

Dual

Triple
Main camera

(wide) , 108 MP, f/1.8 , 84˚ , 24 mm, 1/1.67" , 0.64 µm, 10x digital zoom

(wide) , 48 MP, f/1.8 , 25 mm, 1/2.0" , 0.8 µm
(depth) , 2 MP, f/2.4

(telephoto) , 13 MP, f/2.5 , 50 mm, 2x optical zoom
120˚ , (ultrawide) , 13 MP, f/2.2 , 16 mm
Primary camera resolution

12000 x 9000 pixels

8160 x 6144 pixels
Primary camera video

1080p@30fps

4K@30fps, 1080p@30fps
Primary camera flash

LED flash

dual-LED dual-tone flash
Camera features

Autofocus, digital zoom, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode, macro-mode

Autofocus, continuous shooting, digital zoom, optical 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, RAW

Selfie camera
Selfie camera type

Single

Single
Selfie camera

(wide) , 16 MP, f/2.4 , 82˚ , 1.0 µm

(wide) , 16 MP, f/2.5 , 1.0 µm, 1/3.1"
Selfie camera resolution

4608 x 3456 pixels

-
Selfie camera features

-

Face unlock, HDR
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, 802.11ax
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

v5.2
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

Yes
Bluetooth AptX

aptX HD

-
NFC

No

Yes
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

Yes

Yes
GALILEO

Yes

-
BDS

Yes

-
QZSS

Yes

-

Features
Sensors

Accelerometer, compass, fingerprint, gyroscope, proximity

Accelerometer, compass, fingerprint, gyroscope, proximity

Battery
Battery type

Li-Po

Li-Po
Battery capacity

5000 mAh

4350 mAh
Battery removable

Non-removable

Non-removable
Fast battery charging

SuperVOOC, 67W (80% in 33 min)

Yes, 120W(50% in 6 min, 100% in 18 min)
Wireless reverse charging

-

Yes, 10W
Talk time 4G

-

14.1 h