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Model

Compare BLU J4 and Ulefone Armor 13

BLU J4 vs Ulefone Armor 13

BLU J4

Ulefone Armor 13

Ulefone Armor 13

BLU J4

Ulefone Armor 13

Network
2G network

GSM 850, 900, 1800, 1900

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

HSDPA 850, 900, 1900, 2100

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

-

LTE frequency band 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 34, 38, 39, 40, 41, 66
HSDPA speed

21.1 Mbps

42.2 Mbps
HSUPA speed

5.76 Mbps

11.52 Mbps
EV-DO speed

-

EV-DO Rev.A 3.1 Mbps download, 1.8 Mbps upload
LTE speed

-

LTE, Cat7, 301 Mbps download, 102 Mbps upload
GPRS

Yes

Class 12
EDGE

Yes

Class 12

Availability
Oficially announced

2019-10

2021-07
Status

2019-10

2021-07

Design
Build

Plastic

Aluminium alloy, polycarbonate, TPU
SIM

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

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

151 mm

183.7 mm
Width

72.3 mm

85.3 mm
Thickness

10 mm

20.8 mm
Weight

158 g

492 g
Waterproof

-

IP68/IP69K
Dust proof

-

IP68/IP69K
MIL-STD-810G

-

Yes
Colors

Black, Blue, Brown

Black

Display
Display type

IPS LCD capacitive touchscreen

IPS TFT
Physical size

5.5 inches

6.81 inches
Resolution

720 x 1440 pixels

1080 x 2400 pixels
Pixel density

293 ppi

386 ppi
Display colors

16777216

16777216
Protection

-

Scratch resistant, oleophobic coating
Multitouch

Yes

-

Hardware
CPU

-

Octa-core
CPU

Quad-core 1.3 GHz Cortex-A7

Dual-core 2.05 GHz Cortex-A76
CPU(second)

Hexa-core 2.0 GHz Cortex-A55
Chipset

-

Mediatek Helio G95
GPU

Mali-400

Mali-G76 MC4
Memory RAM

1 GB

8 GB
Internal storage

32 GB

256 GB
Memory card

microSD, microSDHC, microSDXC

microSD, microSDHC, microSDXC
Memory card max

64 GB

1 TB
Storage

eMMC 5.1

-

OS
OS

Android 8.1 Oreo Go Edition

Android 11

Main camera
Camera type

Single

Quad
Main camera

8 MP

48 MP, f/1.8 , 1/2" , 0.8 µm
(ultrawide) , 8 MP, f/2.2 , 120˚
75˚ , (macro) , 2 MP, f/2.6
(depth) , 2 MP
Primary camera resolution

-

8000 x 6000 pixels
Primary camera video

720p@30fps

1080p@30fps
Primary camera flash

LED flash

quad-LED flash
Camera features

-

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, underwater photography

Selfie camera
Selfie camera type

-

Single
Selfie camera

8 MP

16 MP, f/2.2
Selfie camera resolution

-

4608 x 3456 pixels
Selfie camera features

-

Face unlock, face detection, HDR
Selfie camera video

720p@30fps

1080p@30fps

Sound
3.5mm jack

Yes

Yes
Loudspeaker

Yes

Yes
Earpiece

Yes

Yes

Multimedia
Radio

FM Radio

FM Radio

Connectivity
WLAN

Wi-Fi 802.11b, 802.11g, 802.11n

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

Yes

Yes
WLAN WiFi Direct

Yes

Yes
WLAN WiFi Dual Band

-

Yes
USB

microUSB 2.0

Type-C 2.0
USB On-The-Go

-

Yes
Bluetooth

v4.1

v5.0
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

Yes
NFC

-

Yes
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

-

Yes
GALILEO

-

Yes
BDS

-

Yes

Features
Sensors

Accelerometer

Accelerometer, altimeter, barometer, compass, fingerprint, geomagnetic, gyroscope, pedometer, proximity

Browser
HTML

HTML5

HTML5

Battery
Battery type

Li-Po

Li-Po
Battery capacity

2200 mAh

13200 mAh
Battery removable

Removable

Non-removable
Fast battery charging

-

Yes
Wireless charging

-

Qi
Wireless reverse charging

-

Yes
Talk time 2G

-

17 h
Talk time 4G

-

11 h
Standby time 2G

-

600 h
Standby time 4G

-

370 h

Cost
Price

75 USD

310 USD

Tests and performance
Antutu

-

310000 (v9)
Geekbench(single-core)

-

438 (v5.2)
Geekbench(multi-core)

-

1569 (v5.2)

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