BLU J4 vs Ulefone Armor 2

BLU J4

Ulefone Armor 2

Network
2G network

GSM 850, 900, 1800, 1900

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

HSDPA 850, 900, 1900, 2100

HSDPA 850, 900, 1700, 1900, 2100; TD-SCDMA 1880-1920 MHz; TD-SCDMA 2010-2025 MHz
4G network

-

LTE frequency band 1(2100), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 18(800), 38(2600), 39(1900); LTE-TDD 1900, 2300, 2500, 2600
HSDPA speed

21.1 Mbps

-
HSUPA speed

5.76 Mbps

-
EV-DO speed

-

3.1 Mbps download, 1.8 Mbps upload
LTE speed

-

LTE, Cat6 301 Mbps download, 51 Mbps upload
GPRS

Yes

Yes
EDGE

Yes

Yes

Display
Display type

IPS LCD capacitive touchscreen

IPS capacitive touchscreen
Physical size

5.5 inches

5 inches
Resolution

720 x 1440 pixels

1080 x 1920 pixels
Pixel density

293 ppi

441 ppi
Display colors

16777216

16777216
Protection

-

Scratch resistant, Corning Gorilla Glass 3, Oleophobic(lipophobic) coating
Multitouch

Yes

Yes

Main camera
Camera type

Single

-
Main camera

8 MP

16 MP, f/2.0 , 3.5 mm, 1.029 µm
Primary camera resolution

-

4608 x 3456 pixels
Primary camera video

720p@30fps

1080p@30fps
Primary camera flash

LED flash

dual-LED flash
Camera features

-

Autofocus, continuous shooting, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode

Connectivity
WLAN

Wi-Fi 802.11b, 802.11g, 802.11n

Wi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5 GHz
WLAN WiFi Hotspot

Yes

Yes
WLAN WiFi Direct

Yes

-
WLAN WiFi Dual Band

-

Yes
USB

microUSB 2.0

Type-C reversible connector
USB On-The-Go

-

Yes
Bluetooth

v4.1

v4.1
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

-
NFC

-

Yes
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

-

Yes