BLU J4 vs Samsung Galaxy S10e

Network
2G network

GSM 850, 900, 1800, 1900

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

HSDPA 850, 900, 1900, 2100

HSDPA 850, 900, 1700(AWS), 1900, 2100 - Global, USA; CDMA2000 1xEV-DO - USA
4G network

-

LTE frequency band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 13(700), 17(700), 18(800), 19(800), 20(800), 25(1900), 26(850), 28(700), 32(1500), 38(2600), 39(1900), 40(2300), 41(2500), 66(1700/2100) - global; LTE frequency band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 13(700), 14(700), 17(700), 18(800), 19(800), 20(800), 25(1900), 26(850), 28(700), 29(700), 30(2300), 38(2600), 39(1900), 40(2300), 41(2500), 46, 66(1700/2100), 71(600) - USA
HSDPA speed

21.1 Mbps

42.2 Mbps
HSUPA speed

5.76 Mbps

5.76 Mbps
LTE speed

-

LTE-A (7CA), Cat20, 2000 Mbps download, 150 Mbps upload
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

Plastic

Front/back glass (Gorilla Glass 5), aluminum frame
SIM

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

Single SIM (Nano-SIM) or Hybrid Dual SIM (Nano-SIM, dual stand-by)
Height

151 mm

142.2 mm
Width

72.3 mm

69.9 mm
Thickness

10 mm

7.9 mm
Weight

158 g

150 g
Payment

-

Samsung Pay
Waterproof

-

IP68, 1.5m for 30 mins
Dust proof

-

IP68
Colors

Black, Blue, Brown

Black, Blue, Green, Pink, White, Yellow

Display
Display type

IPS LCD capacitive touchscreen

Dynamic AMOLED capacitive touchscreen
Physical size

5.5 inches

5.8 inches
Resolution

720 x 1440 pixels

1080 x 2280 pixels
Pixel density

293 ppi

438 ppi
Display colors

16777216

16777216
Protection

-

Scratch resistant, Corning Gorilla Glass 5
Multitouch

Yes

Yes
Display features

-

Always-on display, HDR10+

Hardware
CPU

-

Octa-core
CPU

Quad-core 1.3 GHz Cortex-A7

Dual-core 2.73 GHz Mongoose M4
CPU(second)

dual-core 2.31 GHz Cortex-A75
CPU(third)

Quad-core 1.95 GHz Cortex-A55
Chipset

-

Exynos 9820 Octa - EMEA; Qualcomm SDM855 Snapdragon 855 - USA, LATAM, China
GPU

Mali-400

Mali-G76 MP12 - EMEA; Adreno 640 - USA, LATAM, China
Memory RAM

1 GB

6, 8 GB
Internal storage

32 GB

128, 256 GB
Memory card

microSD, microSDHC, microSDXC

microSD, microSDHC, microSDXC
Memory card max

64 GB

512 GB
Storage

eMMC 5.1

-

Main camera
Camera type

Single

Dual
Main camera

8 MP

12 MP, f/1.5-2.4 , 26 mm, 1/2.55" , 1.4 µm
16 MP, f/2.2 , 12 mm, 1.0 µm
Primary camera resolution

-

4032 x 3024 pixels
Primary camera video

720p@30fps

2160p@60fps, 1080p@240fps, 720p@960fps
Primary camera flash

LED flash

LED flash
Primary camera phase detection autofocus

-

dual pixel phase detection autofocus
Camera features

-

Autofocus, continuous shooting, digital zoom, optical image stabilization, 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, 802.11ac, 802.11ax
WLAN WiFi Hotspot

Yes

Yes
WLAN WiFi Direct

Yes

Yes
WLAN WiFi Dual Band

-

Yes
USB

microUSB 2.0

Type-C 1.0 reversible connector
Bluetooth

v4.1

v5.0
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

Yes
Bluetooth AptX

-

aptX HD
NFC

-

Yes
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

-

Yes
GALILEO

-

Yes
Beidou

-

Yes