Compare models
Model

Compare BLU J4 and Ulefone Power 3

BLU J4 vs Ulefone Power 3

BLU J4

Ulefone Power 3

Ulefone Power 3

BLU J4

Ulefone Power 3

Network
2G network

GSM 850, 900, 1800, 1900

GSM 850, 900, 1800, 1900
3G network

HSDPA 850, 900, 1900, 2100

HSDPA 900, 2100
4G network

-

LTE frequency band 1(2100), 3(1800), 7(2600), 8(900), 20(800)
HSDPA speed

21.1 Mbps

-
HSUPA speed

5.76 Mbps

-
LTE speed

-

LTE, Cat7 301 Mbps download, 102 Mbps upload
GPRS

Yes

Yes
EDGE

Yes

Yes

Availability
Oficially announced

2019-10

2017-10
Status

2019-10

2017-10

Design
Build

Plastic

Aluminium alloy
SIM

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

Dual SIM (Nano-SIM/Nano-SIM(microSD))
Height

151 mm

159.2 mm
Width

72.3 mm

75.9 mm
Thickness

10 mm

9.85 mm
Weight

158 g

210 g
Colors

Black, Blue, Brown

Black, Gold

Display
Display type

IPS LCD capacitive touchscreen

IPS capacitive touchscreen
Physical size

5.5 inches

6 inches
Resolution

720 x 1440 pixels

1080 x 2160 pixels
Pixel density

293 ppi

402 ppi
Display colors

16777216

16777216
Protection

-

Scratch resistant, 2.5D curved glass screen, Corning Gorilla Glass 4
Multitouch

Yes

Yes

Hardware
CPU

-

Octa-core
CPU

Quad-core 1.3 GHz Cortex-A7

Quad-core 2.5 GHz Cortex-A53
CPU(second)

quad-core 1.6 GHz Cortex-A53
Chipset

-

MediaTek Helio P23 (MT6763T)
GPU

Mali-400

Mali-G71 MP2
Memory RAM

1 GB

6 GB
Internal storage

32 GB

64 GB
Memory card

microSD, microSDHC, microSDXC

microSD, microSDHC, microSDXC
Memory card max

64 GB

256 GB
Storage

eMMC 5.1

-

OS
OS

Android 8.1 Oreo Go Edition

Android OS v7.1 Nougat, Android 8.1 Oreo

Main camera
Camera type

Single

Dual
Main camera

8 MP

16 MP, f/2.0
5 MP
Interpolated resolution

-

21 MP
Primary camera resolution

-

4608 x 3456 pixels
Primary camera video

720p@30fps

1080p@30fps
Primary camera flash

LED flash

dual-LED flash
Primary camera phase detection autofocus

-

phase detection autofocus
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

Selfie camera
Selfie camera type

-

Dual
Selfie camera

8 MP

8 MP, f/2.2
5 MP
Selfie camera resolution

-

3264 x 2448 pixels
Selfie camera video

720p@30fps

-

Sound
3.5mm jack

Yes

No
Loudspeaker

Yes

Yes
Earpiece

Yes

Yes
Headphone adapter

-

Yes

Multimedia
Radio

FM Radio

-
Radio FM

-

FM radio with RDS

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

-
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

-

Yes
Beidou

-

Yes

Features
Sensors

Accelerometer

Accelerometer, compass, gyroscope, fingerprint, light, proximity

Browser
HTML

HTML5

HTML5

Battery
Battery type

Li-Po

Li-Po
Battery capacity

2200 mAh

6080 mAh
Battery removable

Removable

Non-removable
Fast battery charging

-

MediaTek Pump Express Plus 2.0
Talk time 2G

-

63 h
Talk time 3G

-

63 h
Standby time 2G

-

1800 h
Standby time 3G

-

1800 h

Cost
Price

75 USD

-

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