BLU J4 vs Lenovo Legion Duel 2

BLU J4

Lenovo Legion Duel 2

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; CDMA2000 1xEV-DO
4G network

-

LTE frequency band 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 26, 28, 32, 34, 38, 39, 40, 41, 42, 43
5G network

-

5G band 1, 2, 3, 7, 8, 20, 25, 28, 38, 40, 41, 66, 71, 77, 78, 79 SA/NSA/Sub6/mmWave
HSDPA speed

21.1 Mbps

42.2 Mbps
HSUPA speed

5.76 Mbps

5.76 Mbps
LTE speed

-

LTE-A (CA)
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

Plastic

Glass front (Gorilla Glass 5), glass back, aluminum frame
SIM

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

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

151 mm

176 mm
Width

72.3 mm

78.5 mm
Thickness

10 mm

9.9 mm
Weight

158 g

259 g
Build features

-

Built-in two cooling fans, RGB light panel (on the back), 6 pressure sensitive zones (gaming triggers)
Colors

Black, Blue, Brown

Black, White

Main camera
Camera type

Single

Dual
Main camera

8 MP

64 MP, (wide) , f/1.9 , 82˚ , 25 mm, 1/1.32" , 1.0 µm
(ultrawide) , 16 MP, f/2.2 , 123˚ , 16 mm, 1.0 µm
Primary camera resolution

-

9280 x 6920 pixels
Primary camera video

720p@30fps

8K@24fps, 4K@30/60fps, 1080p@30/60/240fps, gyro-EIS, HDR10+ rec.
Primary camera flash

LED flash

dual-LED flash
Camera features

-

HDR, Panorama

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

-

Dual-band
USB

microUSB 2.0

2 x Type-C (2.0 & 3.1)
USB On-The-Go

-

Yes
Bluetooth

v4.1

v5.2
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

Yes
NFC

-

Yes
GPS

Yes, with A-GPS

Yes, with dual-band A-GPS
GLONASS

-

Yes
GALILEO

-

Yes
BDS

-

Yes
QZSS

-

Yes