BLU J4 specs, comparisons, faq, opinions

Name: BLU J4
Brand: BLU
SKU: P-PNX-QNZT0
Rating: 3.2 (1 reviews)

Released 2019, October 158g, 10mm thickness Android 8.1 Oreo 32GB storage, microSDXC
Quad-core 1.3 GHz Cortex-A7 Mali-400 Dual SIM (Nano-SIM, dual stand-by) About 78.4 USD
5.5" 720x1440 pixels
8MP 720p
1GB RAM
2200mAh Li-Po

BLU J4 overview

BLU J4 is a smartphone that runs on Android. It was released on 2019, October. BLU J4 has 5.5 inch, IPS LCD, a resolution of 720 x 1440 pixels screen. BLU J4 uses Quad-core 1.3 GHz Cortex-A7 CPU, Mali-400 GPU. BLU J4 supports 2G, 3G networks with Dual SIM (Nano-SIM, dual stand-by). It has 8MP Single main camera, 8MP Single selfie camera. BLU J4 uses Li-Po 2200 mAh, removable battery. The price of BLU J4 is about 78.4 USD.

Score the key features of BLU J4 compared to the other phones on the market:

CPU Cores: 56 / 100 points
Camera pixels: 30 / 100 points
Screen resolution: 40 / 100 points
Battery capacity: 57 / 100 points
Price: 28 / 100 points

BLU J4 full specifications

NETWORK
Technology	GSM / HSPA
2G bands	GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G bands	HSDPA 850 / 900 / 1900 / 2100
Speed	HSPA 21.1/5.76 Mbps
LAUNCH
Announced	2019, October
Status	Available
BODY
Dimensions	151 x 72.3 x 10 mm (5.94 x 2.85 x 0.39 in)
Weight	158 g (5.57 oz)
SIM	Dual SIM (Nano-SIM, dual stand-by)
DISPLAY
Type	IPS LCD
Size	5.5 inches, 78.1 cm2 (~71.5% screen-to-body ratio)
Resolution	720 x 1440 pixels, 18:9 ratio (~293 ppi density)
PLATFORM
OS	Android 8.1 Oreo (Go edition)
CPU	Quad-core 1.3 GHz Cortex-A7
GPU	Mali-400
MEMORY
Card slot	microSDXC
Internal	32GB 1GB RAM
	eMMC 5.1
MAIN CAMERA
Single	8 MP, AF
Features	LED flash
Video	720p@30fps
SELFIE CAMERA
Single	8 MP
Video	720p@30fps
SOUND
Loudspeaker	Yes
3.5mm jack	Yes
COMMUNICATIONS
WLAN	Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot
Bluetooth	4.1, A2DP, LE
GPS	Yes, with A-GPS
NFC	No
Radio	FM radio
USB	microUSB 2.0
FEATURES
Sensors	Accelerometer
BATTERY
Type	Li-Po 2200 mAh, removable
MISCELLANEOUS
Colors	Blue, Black, Brown
Price	About 78.4 USD

Photos and videos of BLU J4

Blu J4 (J170eq) Pattern Unlock Or Factory reset Without PCHardreset 2023

Yoko Products - Blu J4 $1499 Disponible ...

BLU J4 1GB RAM + 32GB ROM Azul Dual SIM ...

Blu J4 J170EQ 5.5" GSM Unlocked 32GB ...

BLU J4 Full Specifications, Features ...

Celular Blu J4 J170EQ 32GB / 1GB RAM ...

Eliminar cuenta google blu j4 j170eq/ Como quitar cuenta google blu j4 / Quitar cuenta frp blu j4

Celular Blu J4 J170EQ 32GB / 3G / Dual ...

AiLiShi Case For Blu J4 Luxury Flip PU ...

Disponibles Blu J4 Precio: 65.99$ 1gb ...

Blu J4 J170EQ Factory Unlocked Android ...

Frequently asked questions:

How much does BLU J4 cost?
The reference price of the BLU J4 is about 78.4 USD (in 2019). This price may vary slightly depending on the market and region.
Where can I buy a BLU J4 phone?
The BLU J4 phone was manufactured in 2019 and you can hardly buy it now.
Does BLU J4 support 5G?
No, it does not support 5G.
Does BLU J4 support NFC (Near-Field Communication)?
No, it does not support NFC.
What are the dimensions of the BLU J4, what are the sizes?
The size of the BLU J4 is 72.3 x 151 x 10 mm (width x height x thickness).
What is the weight of BLU J4?
The weight of the BLU J4 is 158g.
What type of screen does BLU J4 use?
The screen of BLU J4 is IPS LCD.
What is the screen size of BLU J4? What is its screen ratio?
The screen size of BLU J4 is 5.5 inches. The screen ratio is 71.5% (the higher the screen ratio, the less excess space).
What is the screen resolution of BLU J4? What is PPI (Pixels Per Inch)?
The screen resolution of the BLU J4 is 720 x 1440 pixels, 293 PPI.
What operating system does BLU J4 use?
BLU J4 uses Android 8.1 Oreo (Go edition) operating system.
What CPU does BLU J4 use?
BLU J4 uses Quad-core 1.3 GHz Cortex-A7 CPU, Mali-400 GPU.
What is the battery capacity of the BLU J4? What type of battery does BLU J4 use?
The battery capacity of BLU J4 is 2200 mAh. BLU J4 uses a Li-Po battery.
Does BLU J4 support wireless charging?
No, it does not support wireless charging.
Does BLU J4 have fast charging?
No, it does not support fast charging.
How many MP (megapixels) is the main camera of BLU J4?
The main camera of BLU J4 is 8.0 MP.
What type of SIM card does BLU J4 use?
BLU J4 uses Dual SIM (Nano-SIM, dual stand-by).
Is BLU J4 waterproof?
No, it's not waterproof.
Which country's BLU J4 phone?
J4 is a phone of BLU, a brand from United States.

(default) 10 queries took 40 ms
Nr	Query	Affected	Num. rows	Took (ms)
1	SELECT `Phone`.*, `Brand`.`id`, `Brand`.`name`, `Brand`.`slug`, `Brand`.`count`, `Brand`.`device_types` FROM `gsmfind`.`gsm_phones` AS `Phone` LEFT JOIN `gsmfind`.`gsm_brands` AS `Brand` ON (`Phone`.`brand_id` = `Brand`.`id`) WHERE `Phone`.`slug` = 'blu-j4' LIMIT 1	1	1	2
2	BEGIN	0	0	0
3	SELECT COUNT(*) AS `count` FROM `gsmfind`.`gsm_phones` AS `Phone` WHERE `Phone`.`id` = 10106	1	1	0
4	SELECT COUNT(*) AS `count` FROM `gsmfind`.`gsm_phones` AS `Phone` WHERE `Phone`.`id` = 10106	1	1	0
5	SELECT COUNT(*) AS `count` FROM `gsmfind`.`gsm_phones` AS `Phone` WHERE `Phone`.`id` = 10106	1	1	0
6	UPDATE `gsmfind`.`gsm_phones` SET `id` = 10106, `type` = 'phone', `brand_id` = 67, `sku` = 'P-PNX-QNZT0', `shortname` = 'J4', `fullname` = 'BLU J4', `slug` = 'blu-j4', `intro` = 'BLU J4 is a smartphone that runs on Android. It was released on 2019, October. BLU J4 has 5.5 inch, IPS LCD, a resolution of 720 x 1440 pixels screen. BLU J4 uses Quad-core 1.3 GHz Cortex-A7 CPU, Mali-400 GPU. BLU J4 supports 2G, 3G networks with Dual SIM (Nano-SIM, dual stand-by). It has 8MP Single main camera, 8MP Single selfie camera. BLU J4 uses Li-Po 2200 mAh, removable battery. The price of BLU J4 is about 78.4 USD.', `desc` = 'BLU J4 Android smartphone. Announced Oct 2019. Features 5.5″ display, 2200 mAh battery, 32 GB storage, 1000 MB RAM.', `keywords` = 'BLU J4,BLU,J4,GSM,mobile,phone,cellphone,information,info,specs,specification,opinion,review', `image` = '21/blu-j4.jpg', `versions` = NULL, `versions_json` = NULL, `comment` = 'For USA', `f_price` = 78.40, `f_date_order` = '2019-10-15', `f_width` = 72.30, `f_height` = 151.00, `f_thickness` = 10.00, `f_volume` = 109173.00, `f_weight` = 158.0, `f_pixelwidth` = 720, `f_pixelheight` = 1440, `f_resolution` = 1036800, `f_ppi` = 293, `f_screenratio` = 71.5, `f_displaytype` = 'IPS', `f_touchscreen` = NULL, `f_cam1type` = 1, `f_cam1f` = NULL, `f_cam1videop` = 720, `f_cam2type` = 1, `f_cam2resolution` = 8.0, `f_cpucore` = 4, `f_simcount` = 2, `f_batremovable` = '1', `f_wirelesscharging` = NULL, `f_3d5jack` = '1', `f_rating` = 3.2, `hl_released` = 'Released 2019, October', `hl_body` = '158g, 10mm thickness', `hl_os` = 'Android 8.1 Oreo', `hl_storage` = '32GB storage, microSDXC', `hl_displaysize` = 5.50, `hl_displayres` = '720x1440 pixels', `hl_camerapixels` = 8.0, `hl_videopixels` = '720p', `hl_ramsize` = '1', `hl_chipset` = NULL, `hl_batsize` = 2200, `hl_battype` = 'Li-Po', `hl_popularity` = 'N/A', `hl_hits` = 41537, `hl_fans` = 1, `nettech` = 'GSM / HSPA', `net2g` = 'GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2', `net3g` = 'HSDPA 850 / 900 / 1900 / 2100', `net4g` = NULL, `net5g` = NULL, `speed` = 'HSPA 21.1/5.76 Mbps', `gprstext` = NULL, `edge` = NULL, `year` = '2019, October', `status` = 'Available', `dimensions` = '151 x 72.3 x 10 mm (5.94 x 2.85 x 0.39 in)', `weight` = '158 g (5.57 oz)', `build` = NULL, `keyboard` = NULL, `sim` = 'Dual SIM (Nano-SIM, dual stand-by)', `bodyother` = NULL, `displaytype` = 'IPS LCD', `displaysize` = '5.5 inches, 78.1 cm2 (~71.5% screen-to-body ratio)', `displayresolution` = '720 x 1440 pixels, 18:9 ratio (~293 ppi density)', `displayprotection` = NULL, `displayother` = NULL, `os` = 'Android 8.1 Oreo (Go edition)', `chipset` = NULL, `chipset_id` = NULL, `cpu` = 'Quad-core 1.3 GHz Cortex-A7', `gpu` = 'Mali-400', `memoryslot` = 'microSDXC', `phonebook` = NULL, `callrecords` = NULL, `internalmemory` = '32GB 1GB RAM', `memoryother` = 'eMMC 5.1', `cam1type` = 'Single', `cam1modules` = '8 MP, AF', `cam1features` = 'LED flash', `cam1video` = '720p@30fps', `cam2type` = 'Single', `cam2modules` = '8 MP', `cam2features` = NULL, `cam2video` = '720p@30fps', `loudspeaker` = 'Yes', `alerttype` = NULL, `3d5jack` = 'Yes', `optionalother` = NULL, `wlan` = 'Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot', `bluetooth` = '4.1, A2DP, LE', `gps` = 'Yes, with A-GPS', `infraredport` = '0', `nfc` = 'No', `radio` = 'FM radio', `usb` = 'microUSB 2.0', `sensors` = 'Accelerometer', `messaging` = NULL, `browser` = NULL, `clock` = NULL, `alarm` = NULL, `games` = NULL, `languages` = NULL, `java` = NULL, `featuresother` = NULL, `batdescription1` = 'Li-Po 2200 mAh, removable', `charging` = NULL, `batstandby1` = NULL, `battalktime1` = NULL, `batmusicplayback1` = NULL, `colors` = 'Blue, Black, Brown', `models` = NULL, `sar_us` = NULL, `sar_eu` = NULL, `price` = 'About 70 EUR', `tbench` = NULL, `tdisplay` = NULL, `tcamera` = NULL, `tloudspeaker` = NULL, `taudioquality` = NULL, `batlife` = NULL, `publish` = '0', `hits` = 2356, `post_socials` = NULL, `s_url` = 'blu_j4-10106.php', `last_get` = '2022-09-16 17:18:23', `last_get_vi` = '2025-06-29 06:10:22', `created` = '2020-07-18 00:33:05', `modified` = '2021-05-10 14:00:31' WHERE `gsmfind`.`gsm_phones`.`id` = '10106'	1	1	2
7	COMMIT	0	0	0
8	SELECT `Brand`.`id`, `Brand`.`country_id`, `Brand`.`name`, `Brand`.`slug`, `Brand`.`logo`, `Brand`.`intro`, `Brand`.`count`, `Brand`.`device_first`, `Brand`.`device_last`, `Brand`.`website`, `Brand`.`device_types`, `Brand`.`publish`, `Brand`.`hits`, `Brand`.`weight`, `Brand`.`s_link`, `Brand`.`start_date`, `Brand`.`end_date`, `Brand`.`created`, `Brand`.`modified`, `Country`.`id`, `Country`.`code_3`, `Country`.`code_m49`, `Country`.`name`, `Country`.`slug`, `Country`.`adjective`, `Country`.`continent_name`, `Country`.`continent_code` FROM `gsmfind`.`gsm_brands` AS `Brand` LEFT JOIN `gsmfind`.`gsm_countries` AS `Country` ON (`Brand`.`country_id` = `Country`.`id`) WHERE `Brand`.`id` = 67 LIMIT 1	1	1	1
9	SELECT `Phone`.`id`, `Phone`.`shortname`, `Phone`.`fullname`, `Phone`.`slug`, `Phone`.`desc`, `Phone`.`type`, `Phone`.`status`, `Phone`.`image`, `Phone`.`modified` FROM `gsmfind`.`gsm_phones` AS `Phone` LEFT JOIN `gsmfind`.`gsm_brands` AS `Brand` ON (`Phone`.`brand_id` = `Brand`.`id`) WHERE ((`Phone`.`type` = 'phone') AND (((`Phone`.`f_date_order` >= DATE_SUB('2019-10-15', INTERVAL 45 DAY)) AND (`Phone`.`f_date_order` <= DATE_ADD('2019-10-15', INTERVAL 45 DAY))))) GROUP BY `Phone`.`id` ORDER BY `Phone`.`id` DESC LIMIT 10	10	10	26
10	SELECT `Image`.`id`, `Image`.`g_id`, `Image`.`type`, `Image`.`title`, `Image`.`slug`, `Image`.`thumbnail`, `Image`.`image` FROM `gsmfind`.`gsm_images` AS `Image` WHERE `Image`.`phone_id` = 10106 ORDER BY `Image`.`created` DESC	30	30	9

(default) 10 queries took 40 ms

Query

Error

Affected

Num. rows

Took (ms)

SELECT `Phone`.*, `Brand`.`id`, `Brand`.`name`, `Brand`.`slug`, `Brand`.`count`, `Brand`.`device_types` FROM `gsmfind`.`gsm_phones` AS `Phone` LEFT JOIN `gsmfind`.`gsm_brands` AS `Brand` ON (`Phone`.`brand_id` = `Brand`.`id`) WHERE `Phone`.`slug` = 'blu-j4' LIMIT 1

BEGIN

SELECT COUNT(*) AS `count` FROM `gsmfind`.`gsm_phones` AS `Phone` WHERE `Phone`.`id` = 10106

UPDATE `gsmfind`.`gsm_phones` SET `id` = 10106, `type` = 'phone', `brand_id` = 67, `sku` = 'P-PNX-QNZT0', `shortname` = 'J4', `fullname` = 'BLU J4', `slug` = 'blu-j4', `intro` = 'BLU J4 is a smartphone that runs on Android. It was released on 2019, October. BLU J4 has 5.5 inch, IPS LCD, a resolution of 720 x 1440 pixels screen. BLU J4 uses Quad-core 1.3 GHz Cortex-A7 CPU, Mali-400 GPU. BLU J4 supports 2G, 3G networks with Dual SIM (Nano-SIM, dual stand-by). It has 8MP Single main camera, 8MP Single selfie camera. BLU J4 uses Li-Po 2200 mAh, removable battery. The price of BLU J4 is about 78.4 USD.', `desc` = 'BLU J4 Android smartphone. Announced Oct 2019. Features 5.5″ display, 2200 mAh battery, 32 GB storage, 1000 MB RAM.', `keywords` = 'BLU J4,BLU,J4,GSM,mobile,phone,cellphone,information,info,specs,specification,opinion,review', `image` = '21/blu-j4.jpg', `versions` = NULL, `versions_json` = NULL, `comment` = 'For USA', `f_price` = 78.40, `f_date_order` = '2019-10-15', `f_width` = 72.30, `f_height` = 151.00, `f_thickness` = 10.00, `f_volume` = 109173.00, `f_weight` = 158.0, `f_pixelwidth` = 720, `f_pixelheight` = 1440, `f_resolution` = 1036800, `f_ppi` = 293, `f_screenratio` = 71.5, `f_displaytype` = 'IPS', `f_touchscreen` = NULL, `f_cam1type` = 1, `f_cam1f` = NULL, `f_cam1videop` = 720, `f_cam2type` = 1, `f_cam2resolution` = 8.0, `f_cpucore` = 4, `f_simcount` = 2, `f_batremovable` = '1', `f_wirelesscharging` = NULL, `f_3d5jack` = '1', `f_rating` = 3.2, `hl_released` = 'Released 2019, October', `hl_body` = '158g, 10mm thickness', `hl_os` = 'Android 8.1 Oreo', `hl_storage` = '32GB storage, microSDXC', `hl_displaysize` = 5.50, `hl_displayres` = '720x1440 pixels', `hl_camerapixels` = 8.0, `hl_videopixels` = '720p', `hl_ramsize` = '1', `hl_chipset` = NULL, `hl_batsize` = 2200, `hl_battype` = 'Li-Po', `hl_popularity` = 'N/A', `hl_hits` = 41537, `hl_fans` = 1, `nettech` = 'GSM / HSPA', `net2g` = 'GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2', `net3g` = 'HSDPA 850 / 900 / 1900 / 2100', `net4g` = NULL, `net5g` = NULL, `speed` = 'HSPA 21.1/5.76 Mbps', `gprstext` = NULL, `edge` = NULL, `year` = '2019, October', `status` = 'Available', `dimensions` = '151 x 72.3 x 10 mm (5.94 x 2.85 x 0.39 in)', `weight` = '158 g (5.57 oz)', `build` = NULL, `keyboard` = NULL, `sim` = 'Dual SIM (Nano-SIM, dual stand-by)', `bodyother` = NULL, `displaytype` = 'IPS LCD', `displaysize` = '5.5 inches, 78.1 cm2 (~71.5% screen-to-body ratio)', `displayresolution` = '720 x 1440 pixels, 18:9 ratio (~293 ppi density)', `displayprotection` = NULL, `displayother` = NULL, `os` = 'Android 8.1 Oreo (Go edition)', `chipset` = NULL, `chipset_id` = NULL, `cpu` = 'Quad-core 1.3 GHz Cortex-A7', `gpu` = 'Mali-400', `memoryslot` = 'microSDXC', `phonebook` = NULL, `callrecords` = NULL, `internalmemory` = '32GB 1GB RAM', `memoryother` = 'eMMC 5.1', `cam1type` = 'Single', `cam1modules` = '8 MP, AF', `cam1features` = 'LED flash', `cam1video` = '720p@30fps', `cam2type` = 'Single', `cam2modules` = '8 MP', `cam2features` = NULL, `cam2video` = '720p@30fps', `loudspeaker` = 'Yes', `alerttype` = NULL, `3d5jack` = 'Yes', `optionalother` = NULL, `wlan` = 'Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot', `bluetooth` = '4.1, A2DP, LE', `gps` = 'Yes, with A-GPS', `infraredport` = '0', `nfc` = 'No', `radio` = 'FM radio', `usb` = 'microUSB 2.0', `sensors` = 'Accelerometer', `messaging` = NULL, `browser` = NULL, `clock` = NULL, `alarm` = NULL, `games` = NULL, `languages` = NULL, `java` = NULL, `featuresother` = NULL, `batdescription1` = 'Li-Po 2200 mAh, removable', `charging` = NULL, `batstandby1` = NULL, `battalktime1` = NULL, `batmusicplayback1` = NULL, `colors` = 'Blue, Black, Brown', `models` = NULL, `sar_us` = NULL, `sar_eu` = NULL, `price` = 'About 70 EUR', `tbench` = NULL, `tdisplay` = NULL, `tcamera` = NULL, `tloudspeaker` = NULL, `taudioquality` = NULL, `batlife` = NULL, `publish` = '0', `hits` = 2356, `post_socials` = NULL, `s_url` = 'blu_j4-10106.php', `last_get` = '2022-09-16 17:18:23', `last_get_vi` = '2025-06-29 06:10:22', `created` = '2020-07-18 00:33:05', `modified` = '2021-05-10 14:00:31' WHERE `gsmfind`.`gsm_phones`.`id` = '10106'

COMMIT

SELECT `Brand`.`id`, `Brand`.`country_id`, `Brand`.`name`, `Brand`.`slug`, `Brand`.`logo`, `Brand`.`intro`, `Brand`.`count`, `Brand`.`device_first`, `Brand`.`device_last`, `Brand`.`website`, `Brand`.`device_types`, `Brand`.`publish`, `Brand`.`hits`, `Brand`.`weight`, `Brand`.`s_link`, `Brand`.`start_date`, `Brand`.`end_date`, `Brand`.`created`, `Brand`.`modified`, `Country`.`id`, `Country`.`code_3`, `Country`.`code_m49`, `Country`.`name`, `Country`.`slug`, `Country`.`adjective`, `Country`.`continent_name`, `Country`.`continent_code` FROM `gsmfind`.`gsm_brands` AS `Brand` LEFT JOIN `gsmfind`.`gsm_countries` AS `Country` ON (`Brand`.`country_id` = `Country`.`id`) WHERE `Brand`.`id` = 67 LIMIT 1

SELECT `Phone`.`id`, `Phone`.`shortname`, `Phone`.`fullname`, `Phone`.`slug`, `Phone`.`desc`, `Phone`.`type`, `Phone`.`status`, `Phone`.`image`, `Phone`.`modified` FROM `gsmfind`.`gsm_phones` AS `Phone` LEFT JOIN `gsmfind`.`gsm_brands` AS `Brand` ON (`Phone`.`brand_id` = `Brand`.`id`) WHERE ((`Phone`.`type` = 'phone') AND (((`Phone`.`f_date_order` >= DATE_SUB('2019-10-15', INTERVAL 45 DAY)) AND (`Phone`.`f_date_order` <= DATE_ADD('2019-10-15', INTERVAL 45 DAY))))) GROUP BY `Phone`.`id` ORDER BY `Phone`.`id` DESC LIMIT 10

SELECT `Image`.`id`, `Image`.`g_id`, `Image`.`type`, `Image`.`title`, `Image`.`slug`, `Image`.`thumbnail`, `Image`.`image` FROM `gsmfind`.`gsm_images` AS `Image` WHERE `Image`.`phone_id` = 10106 ORDER BY `Image`.`created` DESC

BLU J4 specs, comparisons, faq, opinions

BLU J4 overview

BLU J4 full specifications

NETWORK

LAUNCH

BODY

DISPLAY

PLATFORM

MEMORY

MAIN CAMERA

SELFIE CAMERA

SOUND

COMMUNICATIONS

FEATURES

BATTERY

MISCELLANEOUS

Photos and videos of BLU J4

Frequently asked questions:

Related devices

ZTE Blade Vantage 2

Blackview BV9800 Pro

Tecno Spark 4

alcatel Go Flip 3

BLU J4

Ulefone Armor 3WT

Ulefone Armor 3W

Ulefone Armor 6S

Ulefone Armor 7

Infinix S5 lite