BLU F91 vs LG K31

BLU F91

LG K31

Network
2G network

GSM 850, 900, 1800, 1900

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

HSDPA 850, 1700(AWS), 1900, 2100

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

LTE frequency band 2, 4, 5, 12, 13, 17, 25, 26, 41, 66, 71

LTE frequency band 2, 4, 5, 12, 13, 25, 26, 41, 66, 71
5G network

5G band 2, 5, 25, 41, 66, 71, 77 SA/NSA/Sub6

-
HSDPA speed

42.2 Mbps

42.2 Mbps
HSUPA speed

5.76 Mbps

5.76 Mbps
LTE speed

LTE

LTE
GPRS

No

Yes
EDGE

Yes

Yes

Main camera
Camera type

Quad

Dual
Main camera

(wide) , 48 MP, f/1.8 , 1/2.0" , 0.8 µm, 30x digital zoom

13 MP, f/1.8 , 1/3.1" , 1.12 µm, 27 mm
(ultrawide) , 5 MP, f/2.2 , 115˚

5 MP, f/2.2 , 1/5.0" , 1.12 µm
(macro) , 2 MP, f/2.4
(depth) , 2 MP, f/2.4
Primary camera resolution

8000 x 6000 pixels

4160 x 3120 pixels
Primary camera video

4K@30fps, 1080p@30fps

1080p@30fps
Primary camera flash

LED flash

LED flash
Camera features

-

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

Connectivity
WLAN

Wi-Fi 802.11b, 802.11g, 802.11n, 802.11ac

Wi-Fi 802.11b, 802.11g, 802.11n
WLAN WiFi Hotspot

Yes

Yes
WLAN WiFi Direct

Yes

Yes
USB

Type-C 2.0

microUSB 2.0
USB On-The-Go

Yes

-
Bluetooth

v5.1

v5.0
Bluetooth A2DP

Yes

Yes
bluetooth LE

LE

Yes
NFC

Yes

-
GPS

Yes, with A-GPS

Yes, with A-GPS