Oppo Find N vs Ulefone Armor 21

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 1xEV-DO

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

LTE frequency band 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 34, 38, 39, 40, 41, 66

LTE frequency band 1, 2, 3, 4, 5, 7, 8, 12, 17, 19, 20, 28, 34, 38, 39, 40, 41, 66
5G network

5G band 1, 3, 5, 7, 8, 20, 28, 38, 41, 66, 77, 78 SA/NSA

-
HSDPA speed

42.2 Mbps

-
HSUPA speed

5.76 Mbps

-
EV-DO speed

-

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

LTE-A (CA)

LTE
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

Glass front (Gorilla Glass Victus) - folded, plastic front - unfolded, glass back (Gorilla Glass Victus), aluminum frame

Polycarbonate, TPU, metal
SIM

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

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

132.6 mm

176 mm
Width

73 mm

81.6 mm
Thickness

15.9 mm

18.1 mm
Height unfolded

132.6 mm

-
Width unfolded

140.2 mm

-
Thickness unfolded

8 mm

-
Weight

275 g

400 g
Waterproof

-

IP68/IP69K (1.5m and 30 mins)
Dust proof

-

IP68/IP69K
MIL-STD-810H

-

Yes
Colors

Black, Purple, White

Black

Display
Display type

Foldable LTPO AMOLED

IPS LCD
Physical size

7.1 inches

6.58 inches
Resolution

1792 x 1920 pixels

1080 x 2408 pixels
Pixel density

370 ppi

401 ppi
Display colors

16777216

16777216
Protection

-

Scratch resistant
Display features

120Hz, HDR10+, 500 nits (typ), 800 nits (HBM), 1000 nits (peak)

-
Cover display

AMOLED

-
Cover display physical size

5.49 inches

-
Cover display resolution

988 x 1972 pixels

-

Main camera
Camera type

Triple

Dual
Main camera

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

(wide) , 64 MP, f/1.9 , 0.8 µm
(telephoto) , 13 MP, f/2.4 , 52 mm, 1/3.4" , 1.0 µm, 2x optical zoom

(night vision) , 24 MP, f/1.8
123˚ , (ultrawide) , 16 MP, f/2.2 , 14 mm, 1/3.09" , 1.0 µm
Primary camera resolution

8192 x 6144 pixels

9280 x 6180 pixels
Primary camera video

4K@30/60fps, 1080p@30/60/240fps, gyro-EIS, HDR

-
Primary camera flash

dual-LED dual-tone flash

LED flash
Camera features

Autofocus, continuous autofocus, continuous shooting, 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, omnidirectional phase detection autofocus

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

32 MP, 26 mm, f/2.4 , 0.8 µm, 1/2.74"

Selfie camera
Selfie camera type

Single

Single
Selfie camera

(wide) , 32 MP, f/2.4 , 26 mm, 1/2.74" , 0.8 µm

(wide) , 16 MP, f/2.2 , 1.0 µm
Selfie camera resolution

6528 x 4896 pixels

4608 x 3456 pixels
Selfie camera features

Digital image stabilization, face detection, face unlock, HDR

Face unlock, HDR, face detection
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, 802.11ax

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

v5.2
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

Yes
Bluetooth AptX

aptX HD

-
Infrared

-

Yes
NFC

Yes

Yes
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

Yes

Yes
GALILEO

Yes

Yes
BDS

Yes

Yes
QZSS

Yes

-

Features
Sensors

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

Accelerometer, barometer, compass, fingerprint, gyroscope, proximity