Ulefone Armor 23 Ultra vs Xiaomi Redmi K50

Ulefone Armor 23 Ultra

Xiaomi Redmi K50

Network
2G network

GSM 850, 900, 1800, 1900

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

HSDPA 800, 850, 1900, 2100

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

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

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

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

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

-

42.2 Mbps
HSUPA speed

-

5.76 Mbps
LTE speed

LTE

LTE-A
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

Polycarbonate, TPU, metal

Glass front (Gorilla Glass Victus), glass back
SIM

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

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

-

163.1 mm
Width

-

76.2 mm
Thickness

-

8.5 mm
Weight

-

201 g
Waterproof

IP68/IP69K

-
Splash resistant

-

IP53
Dust proof

IP68/IP69K

IP53
MIL-STD-810H

Yes

-
Colors

Black

Black, Blue, Gray, Green

Display
Display type

AMOLED

OLED
Physical size

6.67 inches

6.67 inches
Resolution

1080 x 2400 pixels

1440 x 3200 pixels
Pixel density

395 ppi

526 ppi
Display colors

16777216

16777216
Protection

Scratch resistant

Scratch resistant, 2.5D curved glass screen, Corning Gorilla Glass Victus
Display features

-

120Hz, Dolby Vision, HDR10+, 1200 nits (peak)

Main camera
Camera type

Triple

Triple
Main camera

108 MP

48 MP, (wide) , f/1.79 , 1/2" , 0.8 µm
(ultrawide) , 64 MP

(ultrawide) , 8 MP, 119˚
(periscope telephoto) , 64 MP

(macro) , 2 MP, f/2.4
Primary camera resolution

12000 x 9000 pixels

8000 x 6000 pixels
Primary camera video

-

4K@30fps, 1080p@30/60/120fps, 720p@960fps; gyro-EIS
Primary camera flash

dual-LED flash

LED flash
Camera features

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

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, phase detection autofocus, flicker sensor

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
WLAN WiFi Dual Band

Yes

Yes
USB

Type-C 2.0

Type-C 2.0
USB On-The-Go

Yes

Yes
Bluetooth

v5.2

v5.3
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
QZSS

-

Yes
NavIC

-

Yes

Features
Sensors

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

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