BLU S91 Pro vs Ulefone Armor 23 Ultra

BLU S91 Pro

Ulefone Armor 23 Ultra

Network
2G network

GSM 850, 900, 1800, 1900

GSM 850, 900, 1800, 1900
3G network

HSDPA 850, 900, 1700, 1900, 2100

HSDPA 800, 850, 1900, 2100
4G network

LTE frequency band 1, 2, 3, 4, 5, 7, 12, 13, 17, 28, 66

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

-

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
GPRS

Yes

Yes
EDGE

Yes

Yes

Main camera
Camera type

Triple

Triple
Main camera

(wide) , 50 MP, f/1.8 , 0.7 µm

108 MP
(ultrawide) , 2 MP, f/2.4 , 115˚

(ultrawide) , 64 MP
(depth) , 0.8 MP, f/2.4

(periscope telephoto) , 64 MP
Primary camera resolution

-

12000 x 9000 pixels
Primary camera video

1080p@30fps

-
Primary camera flash

LED flash

dual-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

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
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
NFC

No

Yes
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

-

Yes
GALILEO

-

Yes
BDS

-

Yes

Features
Sensors

Accelerometer, compass, fingerprint, proximity

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