Oppo K9 vs Ulefone Armor 23 Ultra

Oppo K9

Ulefone Armor 23 Ultra

Network
2G network

GSM 850, 900, 1800, 1900; CDMA 800

GSM 850, 900, 1800, 1900
3G network

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

HSDPA 800, 850, 1900, 2100
4G network

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

LTE frequency band 1, 3, 5, 7, 8, 20, 25, 26, 28, 34, 38, 39, 40, 41, 66
5G network

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

5G band 1, 3, 5, 7, 8, 20, 28, 38, 77, 78 SA/NSA
HSDPA speed

42.2 Mbps

-
HSUPA speed

5.76 Mbps

-
LTE speed

LTE-A, 1200 Mbps download, 210 Mbps upload

LTE
GPRS

Yes

Yes
EDGE

Yes

Yes

Main camera
Camera type

Triple

Triple
Main camera

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

108 MP
(ultrawide) , 8 MP, f/2.2 , 119˚

(ultrawide) , 64 MP
(macro) , 2 MP, f/2.4

(periscope telephoto) , 64 MP
Primary camera resolution

9280 x 6920 pixels

12000 x 9000 pixels
Primary camera video

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

-
Primary camera flash

LED flash

dual-LED flash
Camera features

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

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

Selfie camera
Selfie camera type

Single

Single
Selfie camera

(wide) , 32 MP, f/2.4 , 80˚ , 0.8 µm

16 MP
Selfie camera resolution

6560 x 4928 pixels

4608 x 3456 pixels
Selfie camera features

Face unlock, digital image stabilization

Face unlock, face detection
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

-
WLAN WiFi Dual Band

Yes

Yes
USB

Type-C 2.0

Type-C 2.0
USB On-The-Go

Yes

Yes
Bluetooth

v5.0

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

Yes
BDS

Yes

Yes
QZSS

Yes

-

Features
Sensors

Accelerometer, compass, fingerprint, gyroscope, proximity

Accelerometer, barometer, compass, fingerprint, geomagnetic, gravity, gyroscope, light, pedometer, proximity