BLU J4 vs Nokia X71

Compare recorded specifications, size and practical differences.

BLU J4

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Nokia X71

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Key differences

Calculated from recorded specifications using minimum difference thresholds. These are differences, not an overall ranking. For three phones, numeric highlights compare the two extremes.

WeightJ4: 22 g lighterJ4: 158 g · X71: 180 g
WidthJ4: 4.2 mm narrowerJ4: 72.3 mm · X71: 76.5 mm
Screen diagonalJ4: 0.89 in smaller diagonalJ4: 5.5 in · X71: 6.39 in
Rear camera layoutSingle / TripleJ4: Single · X71: Triple
DepthX71: 2 mm thinnerX71: 8 mm · J4: 10 mm
HeightJ4: 6.2 mm shorterJ4: 151 mm · X71: 157.2 mm

Physical size

Relative size, not calibrated actual size. Front and side outlines share one scale and a bottom baseline. Generic outlines use recorded body dimensions, excluding camera bumps.

Front

Side

1. J4
Height
151 mm
Width
72.3 mm
Depth
10 mm

Weight
158 g
2. X71
Height
157.2 mm
Width
76.5 mm
Depth
8 mm

Weight
180 g

Specifications

Open a section for more detail. Scroll inside a table to keep phone names visible; on narrow screens, swipe sideways or use the arrow keys while the table is focused. Unknown means missing data, not No. Recorded zero values are shown as recorded.

Everyday essentials

Everyday essentials
Specification	J4	X71
Dimensions (HxWxD)	151 Х 72.3 Х 10 mm	157.2 Х 76.5 Х 8 mm
Weight	158 g	180 g
Technology	IPS LCD	IPS LCD
Screen size	5.5" inch	6.39" inch
Screen resolution	720 x 1440 px	1080 x 2316 px
Internal memoryRecorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.	32GB 1GB RAM	128 GB 6 GB RAM
Memory card support	microSDXC	microSD up to 256 GB
BatteryCapacity is not battery life. No endurance test is implied.	2200 mAh Removable Li-Po	3500 mAh Non-removable Li-Po
Operating system OS	Android 8.1 Oreo (Go edition)	Android 9.0 (Pie); Android One
Chipset	Unknown	Qualcomm SDM660 Snapdragon 660 (14 nm)
Headphone jack	Yes	Yes

Display

Display
Specification	J4	X71
Touchscreen	capacitive touchscreen	capacitive touchscreen
Display colors	16M	16M
Screen area	78.1 cm2	100.9 cm2
Screen format	18:9 (height:width)	Unknown
Screen to body ratio	71.5%	83.9%
PPI /points per inch/	293 PPI	0 PPI

Camera and Video

Camera and Video
Specification	J4	X71
Rear camera, main	8 MP Single	48 MP Triple
Camera specs	8 MP AF	48 MP f/1.8 1/2'' 0.8µm PDAF -8 MP 13mm (ultrawide) -5 MP f/2.4 depth sensor
Functions	LED flash	Zeiss optics Dual-LED flash panorama HDR
Video	720p@30fps	1080p@30fps
Front camera, selfie	8 MP Single	16 MP Single
Specifications	8 MP	16 MP f/2.0

Performance

Performance
Specification	J4	X71
Processor CPU	Quad-core 1.3 GHz Cortex-A7	Octa-core (4x2.2 GHz Kryo 260 & 4x1.8 GHz Kryo 260)
Graphics processor GPU	Mali-400	Adreno 512
Antutu 7 scoreLegacy recorded score. Test conditions are unspecified; no new testing is implied.	Unknown	142562
GeekBench 4 Single CoreLegacy recorded score. Test conditions are unspecified; no new testing is implied.	Unknown	1455
GeekBench 4 Multi-CoreLegacy recorded score. Test conditions are unspecified; no new testing is implied.	Unknown	5075

General specs

General specs
Specification	J4	X71
Release date	2019 October	2019 April
Colors	Blue Black Brown	Black
Historical recorded priceLegacy catalogue value; date unknown. Not a current offer.	70 EUR	290 EUR
Body build	Unknown	Front/back glass aluminum frame

Communication and Connectivity

Communication and Connectivity
Specification	J4	X71
SIM card	Dual SIM (Nano-SIM dual stand-by)	Dual SIM (Nano-SIM dual stand-by)
Network	Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2	Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 850 / 900 / 1900 / 2100 -4G - LTE band 1(2100) 3(1800) 5(850) 7(2600) 8(900) 28(700) 38(2600) 40(2300) 41(2500)
Speed	HSPA 21.1/5.76 Mbps	HSPA LTE-A
GPRS	Yes	Yes
Edge	Yes	Yes
Wi-Fi	Wi-Fi 802.11 b/g/n Wi-Fi Direct hotspot	Wi-Fi 802.11 a/b/g/n/ac dual-band WiFi Direct hotspot
GPS	Yes with A-GPS	Yes with A-GPS GLONASS BDS
USB	microUSB 2.0	2.0 Type-C 1.0 reversible connector USB On-The-Go
Bluetooth	4.1 A2DP LE	5.0 A2DP LE aptX

Music and Audio

Music and Audio
Specification	J4	X71
Radio	FM radio	Unknown
Others	Unknown	Active noise cancellation with dedicated mic

Other features

Other features
Specification	J4	X71
Dop	Sensors Accelerometer For USA	Sensors Fingerprint (rear-mounted) accelerometer gyro proximity compass - Fast battery charging 18W - For China