BLU J2 vs Xiaomi Mi Mix 3

Compare recorded specifications, size and practical differences.

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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 technology

    OLED versus LCD

    J2:
    LCD
    Mi Mix 3:
    OLED
  • Weight

    J2: 72 g lighter

    J2:
    146 g
    Mi Mix 3:
    218 g
  • Width

    J2: 1.6 mm narrower

    J2:
    73.1 mm
    Mi Mix 3:
    74.7 mm
  • Screen diagonal

    J2: 1.39 in smaller diagonal

    J2:
    5 in
    Mi Mix 3:
    6.39 in
  • Rear camera layout

    J2:
    Single
    Mi Mix 3:
    Dual
  • Depth

    Mi Mix 3: 1.8 mm thinner

    J2:
    10.3 mm
    Mi Mix 3:
    8.5 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.

  1. 1. J2

    Height:
    144 mm
    Width:
    73.1 mm
    Depth:
    10.3 mm +1.8 mm versus Mi Mix 3
  2. 2. Mi Mix 3

    Height:
    157.9 mm +13.9 mm versus J2
    Width:
    74.7 mm +1.6 mm versus J2
    Depth:
    8.5 mm

Weight

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

  1. 1. J2

    146 g

  2. 2. Mi Mix 3

    218 g

    +72 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.

  1. 1. J2

    Screen diagonal:
    5 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    68.9 cm²
  2. 2. Mi Mix 3

    Screen diagonal:
    6.39 in
    Aspect ratio (height:width):
    19.5:9
    Approximate rectangular screen area:
    100.2 cm²

Mi Mix 3 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 for J2, Mi Mix 3, compared at the same storage capacity.
StorageJ2Mi Mix 3
32 GB 1 GB RAM Unknown
Mi Mix 3: Original memory entry

256 GB · 8/10 GB RAM 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 Mix 3

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

Battery capacity

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

Recorded battery capacity

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

  1. 1. J2

    2000 mAh

  2. 2. Mi Mix 3

    3200 mAh

    +1200 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 Mix 3

Everyday essentials
Everyday essentials — specifications for J2, Mi Mix 3.
SpecificationJ2Mi Mix 3
Dimensions (HxWxD)
  • 144 Х 73.1 Х 10.3 mm
  • 157.9 Х 74.7 Х 8.5 mm
Weight
  • 146 g
  • 218 g
Technology
  • IPS LCD
  • Super AMOLED
Screen size
  • 5" inch
  • 6.39" inch
Screen resolution
  • 480 x 854 px
  • 1080 x 2340 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 32GB 1GB RAM
  • 256 GB
  • 8/10 GB RAM 128 GB
  • 6/8 GB RAM
Memory card support
  • microSDXC
  • No
Battery Capacity is not battery life. No endurance test is implied.
  • 2000 mAh
  • Li-Po
  • 3200 mAh
  • Non-removable Li-Ion
Operating system OS
  • Android 8.1 Oreo (Go edition)
  • Android 9.0 (Pie); MIUI 10
Chipset Unknown
  • Qualcomm SDM845 Snapdragon 845 (10 nm)
NFC Unknown
  • Yes
Headphone jack
  • Yes
  • No
Display
Display — specifications for J2, Mi Mix 3.
SpecificationJ2Mi Mix 3
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
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%
  • 85.0%
PPI /points per inch/
  • 196 PPI
  • 403 PPI
Screen protection Unknown
  • Corning Gorilla Glass 5
Camera and Video

Scores marked * are historical catalogue entries. Test conditions are unspecified; no new testing is implied.

Camera and Video — specifications for J2, Mi Mix 3.
SpecificationJ2Mi Mix 3
Rear camera, main
  • 5 MP
  • Single
  • 12 MP
  • Dual
Camera specs
  • 5 MP
  • 12 MP (wide)
  • f/1.8
  • 1/2.55''
  • 1.4µm
  • dual pixel PDAF
  • 4-axis OIS -12 MP (telephoto)
  • 1/3.4''
  • 1.0µm
Functions
  • LED flash
  • LED flash
  • HDR
Video
  • 720p@30fps
  • 1080p@30fps
Front camera, selfie
  • 5 MP
  • Single
  • 24 MP
  • Dual
Specifications
  • 5 MP
  • Mechanical pop-up 24 MP
  • 1/2.8''
  • 0.9µm Mechanical pop-up 2 MP
  • depth sensor
DxOMark Main Score * Unknown
  • 103
DxOMark Photo * Unknown
  • 83
DxOMark Video * Unknown
  • 85
DxOMark Selfie Score * Unknown
  • 84
Performance

Scores marked * are historical catalogue entries. Test conditions are unspecified; no new testing is implied.

Performance — specifications for J2, Mi Mix 3.
SpecificationJ2Mi Mix 3
Processor CPU
  • Quad-core 1.3 GHz Cortex-A7
  • Octa-core (4x2.8 GHz Kryo 385 Gold & 4x1.7 GHz Kryo 385 Silver)
Graphics processor GPU
  • Mali-400
  • Adreno 630
Antutu 7 score * Unknown
  • 296026
GeekBench 4 Single Core * Unknown
  • 2127
GeekBench 4 Multi-Core * Unknown
  • 8340
Antutu 8 score * Unknown
  • 350208
GeekBench 5 Single Core * Unknown
  • 448
GeekBench 5 Multi-Core * Unknown
  • 2004
General specs
General specs — specifications for J2, Mi Mix 3.
SpecificationJ2Mi Mix 3
Release date
  • 2019
  • December
  • 2018
  • October
Colors
  • Blue
  • Black
  • Brown
  • Jade Green
  • Sapphire Blue
  • Onyx Black
  • Forbidden City Blue (10 GB only)
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 50 EUR
  • 560 EUR
Body build Unknown
  • Front glass
  • aluminum frame (7000 series)
  • ceramic back
Communication and Connectivity
Communication and Connectivity — specifications for J2, Mi Mix 3.
SpecificationJ2Mi Mix 3
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 / 1900 & TD-SCDMA -3G - HSDPA 800 / 850 / 900 / 1700(AWS) / 1800 / 1900 / 2100 - Global CDMA2000 1xEV-DO HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 - China -4G - LTE band 1(2100)
  • 2(1900)
  • 3(1800)
  • 4(1700/2100)
  • 5(850)
  • 7(2600)
  • 8(900)
  • 12(700)
  • 13(700)
  • 17(700)
  • 18(800)
  • 19(800)
  • 20(800)
  • 25(1900)
  • 26(850)
  • 28(700)
  • 29(700)
  • 30(2300)
  • 34(2000)
  • 38(2600)
  • 39(1900)
  • 40(2300)
  • 41(2500)
  • 66(1700/2100) - Global LTE band 1(2100)
  • 41(2500) - China
Speed
  • HSPA 21.1/5.76 Mbps
  • HSPA
  • LTE
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 dual-band A-GPS
  • GLONASS
  • BDS
  • GALILEO
  • QZSS
USB
  • microUSB 2.0
  • Type-C 1.0 reversible connector
Bluetooth
  • 4.1
  • A2DP
  • LE
  • 5.0
  • A2DP
  • aptX HD
  • LE
Music and Audio
Music and Audio — specifications for J2, Mi Mix 3.
SpecificationJ2Mi Mix 3
Radio
  • FM radio
  • No
Others Unknown
  • HDR
  • Active noise cancellation with dedicated mic
Other features
Other features — specifications for J2, Mi Mix 3.
SpecificationJ2Mi Mix 3
Dop
  • Sensors Accelerometer For USA
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass - Fast battery charging (Quick Charge 4.0+) -Wireless charging