BLU J4 vs UMIDIGI F1

BLU J4

UMIDIGI F1

Network
2G network

GSM 850, 900, 1800, 1900

GSM 850, 900, 1800, 1900
3G network

HSDPA 850, 900, 1900, 2100

HSDPA 850, 900, 1700, 1900, 2100
4G network

-

LTE frequency band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 18(800); LTE-TDD 1900, 2000, 2300, 2500, 2600
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

Display
Display type

IPS LCD capacitive touchscreen

IPS
Physical size

5.5 inches

6.3 inches
Resolution

720 x 1440 pixels

1080 x 2340 pixels
Pixel density

293 ppi

409 ppi
Display colors

16777216

16777216
Protection

-

Scratch resistant, 2.5D curved glass screen, LTPS(Low Temperature PolySilicon)
Multitouch

Yes

Yes

Main camera
Camera type

Single

Dual
Main camera

8 MP

16 MP, f/1.7 , 1/2.8" , 1.12 µm
8 MP, 1/4" , 1.12 µm
Primary camera resolution

-

4672 x 3504 pixels
Primary camera video

720p@30fps

1080p@30fps
Primary camera flash

LED flash

dual-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

Connectivity
WLAN

Wi-Fi 802.11b, 802.11g, 802.11n

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

Yes

Yes
WLAN WiFi Direct

Yes

Yes
Wi-Fi display

-

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 HID

-

Yes
bluetooth LE

Yes

-
NFC

-

Yes
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

-

Yes
Beidou

-

Yes