Samsung Galaxy Z Flip3 5G vs Ulefone Armor 21

Samsung Galaxy Z Flip3 5G

Ulefone Armor 21

Network
2G network

GSM 850, 900, 1800, 1900; CDMA 800, 1900

GSM 850, 900, 1800, 1900
3G network

HSDPA 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, 13, 14, 18, 19, 20, 25, 26, 28, 30, 38, 39, 40, 41, 46, 48, 66, 71

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 2, 5, 25, 41, 66, 71, 260, 261 SA/NSA/Sub6/mmWave

-
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 (6CA), Cat20, 2000 Mbps download, 200 Mbps upload

LTE
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

Plastic front, glass back (Gorilla Glass Victus), aluminum frame

Polycarbonate, TPU, metal
SIM

Nano-SIM, eSIM

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

86.4 mm

176 mm
Width

72.2 mm

81.6 mm
Thickness

6.9 mm

18.1 mm
Height unfolded

166 mm

-
Width unfolded

72.2 mm

-
Thickness unfolded

15.9-17.1 mm

-
Weight

183 g

400 g
Payment

Samsung Pay (Visa, MasterCard certified)

-
Waterproof

IPX8, 1.5m and 30 minutes

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

-

IP68/IP69K
MIL-STD-810H

-

Yes
Colors

Black, Gray, Green, Lavender, Pink, White

Black

Main camera
Camera type

Dual

Dual
Main camera

(wide) , 12 MP, f/1.8 , 78˚ , 27 mm, 1/1.8" , 1.4 µm, 8x digital zoom

(wide) , 64 MP, f/1.9 , 0.8 µm
(ultrawide) , 12 MP, f/2.2 , 123˚ , 52 mm, 1.12 µm

(night vision) , 24 MP, f/1.8
Primary camera resolution

4032 x 3024 pixels

9280 x 6180 pixels
Primary camera video

4K@30/60fps, 1080p@60/240fps, 720p@960fps, HDR10+

-
Primary camera flash

LED flash

LED flash
Camera features

Autofocus, continuous shooting, digital zoom, optical zoom, digital image stabilization, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode, phase detection autofocus, tracking 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

Selfie camera
Selfie camera type

Single

Single
Selfie camera

(wide) , 10 MP, f/2.4 , 80˚ , 26 mm, 1.22 µm

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

-

4608 x 3456 pixels
Selfie camera features

Autofocus, face unlock, HDR

Face unlock, HDR, face detection
Selfie camera video

4K@30fps

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 3.1

Type-C 2.0
USB On-The-Go

Yes

Yes
Bluetooth

v5.1

v5.2
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

Yes
Infrared

-

Yes
NFC

Yes

Yes
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

Yes

Yes
GALILEO

Yes

Yes
BDS

Yes

Yes

Features
Sensors

Accelerometer, barometer, compass, fingerprint, gyroscope, proximity

Accelerometer, barometer, compass, fingerprint, gyroscope, proximity