Oppo K9s vs Xiaomi Mix Fold 2

Network
2G network

GSM 850, 900, 1800, 1900; CDMA 800

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

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

HSDPA 850, 900, 1700(AWS), 1900, 2100; CDMA2000 1xEV-DO
4G network

LTE frequency band 1, 3, 4, 5, 8, 19, 28, 34, 38, 39, 40, 41

LTE frequency band 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 34, 38, 39, 40, 41, 42
5G network

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

5G band 1, 3, 5, 8, 20, 28, 38, 40, 41, 77, 78, 79 SA/NSA
HSDPA speed

42.2 Mbps

42.2 Mbps
HSUPA speed

5.76 Mbps

5.76 Mbps
LTE speed

LTE-A, 1200 Mbps download, 210 Mbps upload

LTE-A (CA)
GPRS

Yes

Yes
EDGE

Yes

Yes

Display
Display type

IPS LCD

Foldable LTPO2 OLED
Physical size

6.59 inches

8.02 inches
Resolution

1080 x 2412 pixels

1914 x 2160 pixels
Pixel density

401 ppi

360 ppi
Display colors

16777216

1073741824
Protection

Scratch resistant, 2.5D curved glass screen, Panda glass

Schott UTG glass, Corning Gorilla Glass Victus
Display features

120Hz, 480 nits (typ), 600 nits (HBM)

120Hz, HDR10+, Dolby Vision, 1000 nits (HBM), 1300 nits (peak)
Cover display

-

AMOLED
Cover display physical size

-

6.56 inches
Cover display resolution

-

1080 x 2520 pixels
Cover display features

-

120Hz, HDR10+, Dolby Vision, 1000 nits (HBM), 1300 nits (peak)

Hardware
CPU

Octa-core

Octa-core
CPU

Quad-core 2.4 GHz Kryo 670

Single-core 3.19 GHz Cortex-X2
CPU(second)

quad-core 1.9 GHz Kryo 670

Triple-core 2.75 GHz Cortex-A710
CPU(third)

Quad-core 1.80 GHz Cortex-A510
Chipset

Qualcomm SM7325 Snapdragon 778G 5G

Qualcomm SM8475 Snapdragon 8+ Gen 1
GPU

Adreno 642L

Adreno 730
Memory RAM

6, 8 GB

12 GB
Internal storage

128 GB

256, 512, 1024 GB
Memory card

microSD, microSDHC, microSDXC

No
Memory card max

512 GB

-
Storage

UFS 2.2

UFS 3.1

Main camera
Camera type

Triple

Triple
Main camera

(wide) , 64 MP, f/1.7 , 81˚ , 26 mm, 1/2.0" , 0.8 µm, 20x digital zoom

(wide) , 50 MP, f/1.8 , 1/1.56" , 1.0 µm
(ultrawide) , 8 MP, f/2.2 , 120˚ , 1/4" , 1.12 µm

(telephoto) , 8 MP, f/2.6 , 45 mm, 2x optical zoom
89˚ , (macro) , 2 MP, f/2.4 , 1/5" , 1.75 µm

123 , (ultrawide) , 13 MP, f/2.4 , 1.12 µm, 15 mm
Primary camera resolution

9248 x 6936 pixels

8190 x 6120 pixels
Primary camera video

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

8K@24/30fps, 4K@30/60fps, 1080p@30/60/120/240/960fps, gyro-EIS
Primary camera flash

LED flash

dual 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, digital zoom, optical zoom, digital image stabilization, optical image stabilization, geotagging, panorama, HDR, touch focus, face detection, face unlock, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode, phase detection autofocus, Dolby Vision, Leica Native Dual Quality, super night 2.0

Selfie camera
Selfie camera type

Single

Single
Selfie camera

(wide) , 16 MP, f/2.0 , 79˚

(wide) , 20 MP, f/2.4 , 27 mm, 1/3.4" , 0.8 µm
Selfie camera resolution

4608 x 3456 pixels

5184 x 3880 pixels
Selfie camera features

Face unlock, HDR

Face unlock, HDR, Dolby Vision
Selfie camera video

1080p@30fps, gyro-EIS

1080p@30/60fps, 720p@120fps

Connectivity
WLAN

Wi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5GHz, 802.11ac, 802.11ax

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
USB On-The-Go

Yes

-
Bluetooth

v5.2

v5.2
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

Yes
Bluetooth AptX

aptX HD

-
Infrared

-

Yes
NFC

No

Yes
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

Yes

Yes
GALILEO

Yes

Yes
BDS

Yes

Yes
QZSS

Yes

Yes
NavIC

-

Yes

Features
Sensors

Accelerometer, compass, fingerprint, gyroscope, proximity

Accelerometer, barometer, compass, color spectrum, fingerprint, gyroscope, proximity