BLU J2 vs Xiaomi Mi 9

Compare recorded specifications, size and practical differences.

BLU J2

Replace J2

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Xiaomi Mi 9

Replace Mi 9

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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.

Display technologyOLED versus LCDJ2: LCD · Mi 9: OLED
WeightJ2: 27 g lighterJ2: 146 g · Mi 9: 173 g
WidthJ2: 1.6 mm narrowerJ2: 73.1 mm · Mi 9: 74.7 mm
Screen diagonalJ2: 1.39 in smaller diagonalJ2: 5 in · Mi 9: 6.39 in
Rear camera layoutSingle / TripleJ2: Single · Mi 9: Triple
DepthMi 9: 2.7 mm thinnerMi 9: 7.6 mm · J2: 10.3 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. J2
Height
144 mm
Width
73.1 mm
Depth
10.3 mm+2.7 mm versus Mi 9

Weight
146 g
2. Mi 9
Height
157.5 mm+13.5 mm versus J2
Width
74.7 mm+1.6 mm versus J2
Depth
7.6 mm

Weight
173 g

Weight

Bars start at zero and share a scale within this chart.

1. J2146 g
2. Mi 9173 g

+27 g versus J2

Screen size

Approximate rectangular screens calculated from recorded diagonal and aspect ratio at one relative scale. Rounded corners and cutouts are not subtracted. These are not phone outlines or calibrated actual sizes.

Screen size

1. J2 5 in · 16:9 About 68.9 cm² rectangular area
2. Mi 9 6.39 in · 19.5:9 About 100.2 cm² rectangular area

Mi 9 has approximately 45.4% more rectangular screen area than J2.

Memory variants

Each row compares the same storage capacity. Cells show recorded RAM alternatives, not combined maxima. Not recorded does not mean unavailable in every market.

Recorded RAM by storage capacity and phone
Storage	J2	Mi 9
32 GB	1 GB RAM	Unknown

Mi 9: Original memory entry

64/128 GB · 6/8 GB RAM

Practical features

Explicit Yes and No values are shown directly. Qualified or regional records retain their details. Unknown means the record is missing.

1. J2

NFC: Unknown
Headphone jack: Yes
Memory card support: See details microSDXC

2. Mi 9

NFC: Yes
Headphone jack: No
Memory card support: No

Battery capacity

Capacity is not battery life. No endurance test is implied.

Recorded capacity

Bars start at zero and share a scale within this chart.

1. J22000 mAh
2. Mi 93300 mAh

+1300 mAh versus J2

Specifications

Open a section for more detail. On narrow screens, swipe sideways or use Left/Right arrow keys while the table is focused. Unknown means missing data, not No. Recorded zero values are shown as recorded.

1. J22. Mi 9

Everyday essentials

Everyday essentials
Specification	J2	Mi 9
Dimensions (HxWxD)	144 Х 73.1 Х 10.3 mm	157.5 Х 74.7 Х 7.6 mm
Weight	146 g	173 g
Technology	IPS LCD	Super AMOLED
Screen size	5" inch	6.39" inch
Screen resolution	480 x 854 px	1080 x 2340 px
Internal memoryRecorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.	32GB 1GB RAM	64/128 GB 6/8 GB RAM
Memory card support	microSDXC	No
BatteryCapacity is not battery life. No endurance test is implied.	2000 mAh Li-Po	3300 mAh Non-removable Li-Po
Operating system OS	Android 8.1 Oreo (Go edition)	Android 9.0 (Pie)
Chipset	Unknown	Qualcomm SDM855 Snapdragon 855 (7 nm)
NFC	Unknown	Yes
Headphone jack	Yes	No

Display

Display
Specification	J2	Mi 9
Touchscreen	capacitive touchscreen	Super AMOLED capacitive touchs
Display colors	16M	16M
Screen area	68.9 cm2	100.2 cm2
Screen format	16:9 (height:width)	19.5:9 (height:width)
Screen to body ratio	65.4%	85.2%
PPI /points per inch/	196 PPI	403 PPI
Screen protection	Unknown	Corning Gorilla Glass 6

Camera and Video

Camera and Video
Specification	J2	Mi 9
Rear camera, main	5 MP Single	48 MP Triple
Camera specs	5 MP	48 MP f/1.8 1/2'' 0.8µm Laser/PDAF -16 MP f/2.2 13mm (ultrawide) 1/3.0'' 1.0µm Laser/PDAF -12 MP 54mm (telephoto) 1/3.6'' Laser/PDAF 2x optical zoom
Functions	LED flash	HDR
Video	720p@30fps	1080p@30fps
Front camera, selfie	5 MP Single	20 MP Single
Specifications	5 MP	20 MP f/2.0 0.9μm
DxOMark Main ScoreLegacy recorded score. Test conditions are unspecified; no new testing is implied.	Unknown	110
DxOMark PhotoLegacy recorded score. Test conditions are unspecified; no new testing is implied.	Unknown	115
DxOMark VideoLegacy recorded score. Test conditions are unspecified; no new testing is implied.	Unknown	99

Performance

Performance
Specification	J2	Mi 9
Processor CPU	Quad-core 1.3 GHz Cortex-A7	Octa-core (1x2.84 GHz Kryo 485 & 3x2.42 GHz Kryo 485 & 4x1.8 GHz Kryo 485)
Graphics processor GPU	Mali-400	Adreno 640
Antutu 7 scoreLegacy recorded score. Test conditions are unspecified; no new testing is implied.	Unknown	371108
GeekBench 4 Single CoreLegacy recorded score. Test conditions are unspecified; no new testing is implied.	Unknown	3235
GeekBench 4 Multi-CoreLegacy recorded score. Test conditions are unspecified; no new testing is implied.	Unknown	10405
GeekBench 4 RenderScriptLegacy recorded score. Test conditions are unspecified; no new testing is implied.	Unknown	7120
Antutu 8 scoreLegacy recorded score. Test conditions are unspecified; no new testing is implied.	Unknown	445567
GeekBench 4 BatteryLegacy recorded score. Test conditions are unspecified; no new testing is implied.	Unknown	6086
GeekBench 5 Single CoreLegacy recorded score. Test conditions are unspecified; no new testing is implied.	Unknown	678
GeekBench 5 Multi-CoreLegacy recorded score. Test conditions are unspecified; no new testing is implied.	Unknown	2575

General specs

General specs
Specification	J2	Mi 9
Release date	2019 December	2019 February
Colors	Blue Black Brown	Lavender Violet Ocean Blue Piano Black
Historical recorded priceLegacy catalogue value; date unknown. Not a current offer.	50 EUR	450 EUR
Body build	Unknown	Back glass (Gorilla Glass 5) aluminum frame (7000 series)

Communication and Connectivity

Communication and Connectivity
Specification	J2	Mi 9
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 CDMA 800 & TD-SCDMA -3G - HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 -4G - LTE band 1(2100) 2(1900) 3(1800) 4(1700/2100) 5(850) 7(2600) 8(900) 12(700) 17(700) 20(800) 28(700) 38(2600) 39(1900) 40(2300)
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 Wi-Fi Direct DLNA hotspot
GPS	Yes with A-GPS	Yes with dual-band A-GPS GLONASS BDS GALILEO QZSS
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 HD

Music and Audio

Music and Audio
Specification	J2	Mi 9
Radio	FM radio	No
Others	Unknown	HDR10 -DCI-P3 Active noise cancellation with dedicated mic

Other features

Other features
Specification	J2	Mi 9
Dop	Sensors Accelerometer For USA	Sensors Fingerprint (under display) accelerometer gyro proximity compass Infrared port - Fast battery charging 27W (Quick Charge 4+) -Fast wireless charging 20W

BLU J2 vs Xiaomi Mi 9

BLU J2

Xiaomi Mi 9

Key differences

Physical size

Screen size

Memory variants

Practical features

1. J2

2. Mi 9

Battery capacity

Specifications

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