BLU J4 vs Realme X7 Pro Ultra

BLU J4

Realme X7 Pro Ultra

Network
2G network

GSM 850, 900, 1800, 1900

GSM 850, 900, 1800, 1900; CDMA 800
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, 17, 18, 19, 26, 34, 38, 39, 40, 41
5G network

-

5G band 1, 3, 41, 77, 78, 79 SA/NSA
HSDPA speed

21.1 Mbps

42.2 Mbps
HSUPA speed

5.76 Mbps

5.76 Mbps
EV-DO speed

-

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

-

LTE-A (CA)
GPRS

Yes

Yes
EDGE

Yes

Yes

Display
Display type

IPS LCD capacitive touchscreen

Super AMOLED
Physical size

5.5 inches

6.55 inches
Resolution

720 x 1440 pixels

1080 x 2400 pixels
Pixel density

293 ppi

402 ppi
Display colors

16777216

16777216
Protection

-

Scratch resistant, 3D curved glass screen, Corning Gorilla Glass 5
Multitouch

Yes

-
Display features

-

90Hz, 1200 nits (peak)

Main camera
Camera type

Single

Triple
Main camera

8 MP

64 MP, (wide) , f/1.8 , 26 mm, 1/2.0" , 0.7 µm
(ultrawide) , 8 MP, f/2.3 , 119˚ , 16 mm, 1/4.0" , 1.12 µm
(macro) , 2 MP, f/2.4
Primary camera resolution

-

9280 x 6920 pixels
Primary camera video

720p@30fps

4K@30/60fps, 1080p@30/60fps, gyro-EIS
Primary camera flash

LED flash

LED flash
Camera features

-

Autofocus, continuous shooting, digital zoom, digital image stabilization, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode, macro-mode, phase detection autofocus, UIS, UIS max

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, 802.11ax
WLAN WiFi Hotspot

Yes

Yes
WLAN WiFi Direct

Yes

Yes
WLAN WiFi Dual Band

-

Yes
USB

microUSB 2.0

Type-C 2.0
Bluetooth

v4.1

v5.1
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