BLU J2 vs HTC One A9

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
    One A9:
    OLED
  • Width

    One A9: 2.3 mm narrower

    J2:
    73.1 mm
    One A9:
    70.8 mm
  • Depth

    One A9: 3 mm thinner

    J2:
    10.3 mm
    One A9:
    7.3 mm
  • Release year

    J2:
    2019
    One A9:
    2015

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 +2.3 mm versus One A9
    Depth:
    10.3 mm +3 mm versus One A9
  2. 2. One A9

    Height:
    145.8 mm
    Width:
    70.8 mm
    Depth:
    7.3 mm

Weight

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

  1. 1. J2

    146 g

    +3 g versus One A9

  2. 2. One A9

    143 g

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. One A9

    Screen diagonal:
    5 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    68.9 cm²

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, One A9, compared at the same storage capacity.
StorageJ2One A9
32 GB 1 GB RAM Unknown
One A9: Original memory entry

16 GB · 2 GB RAM32 GB · 3 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. One A9

NFC:
See details Yes (payments only)
Headphone jack:
Yes
Memory card support:
See details microSD · up to 256 GB (dedicated slot)

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. One A9

    2150 mAh

    +150 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. One A9

Everyday essentials
Everyday essentials — specifications for J2, One A9.
SpecificationJ2One A9
Dimensions (HxWxD)
  • 144 Х 73.1 Х 10.3 mm
  • 145.8 Х 70.8 Х 7.3 mm
Weight
  • 146 g
  • 143 g
Technology
  • IPS LCD
  • AMOLED
Screen size
  • 5" inch
  • 5" inch
Screen resolution
  • 480 x 854 px
  • 1080 x 1920 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 32GB 1GB RAM
  • 16 GB
  • 2 GB RAM32 GB
  • 3 GB RAM
Memory card support
  • microSDXC
  • microSD
  • up to 256 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 2000 mAh
  • Li-Po
  • 2150 mAh
  • Non-removable Li-Ion
Operating system OS
  • Android 8.1 Oreo (Go edition)
  • Android 6.0 (Marshmallow)
  • upgradable to 7.0 (Nougat); Sense UI
Chipset Unknown
  • Qualcomm MSM8952 Snapdragon 617 (28 nm)
NFC Unknown
  • Yes (payments only)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for J2, One A9.
SpecificationJ2One A9
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 68.9 cm2
  • 68.9 cm2
Screen format
  • 16:9 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 65.4%
  • 66.8%
PPI /points per inch/
  • 196 PPI
  • 441 PPI
Screen protection Unknown
  • Corning Gorilla Glass 3
Camera and Video
Camera and Video — specifications for J2, One A9.
SpecificationJ2One A9
Rear camera, main
  • 5 MP
  • Single
  • 13 MP
  • Single
Camera specs
  • 5 MP
  • 13 MP
  • f/2.0
  • OIS
  • AF
Functions
  • LED flash
  • HDR
Video
  • 720p@30fps
  • 1080p@30fps
Front camera, selfie
  • 5 MP
  • Single
  • 4 MP
  • Single
Specifications
  • 5 MP
  • 4 MP
  • f/2.0
  • 27mm (wide)
  • 1/3''
  • 2µm
Performance

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

Performance — specifications for J2, One A9.
SpecificationJ2One A9
Processor CPU
  • Quad-core 1.3 GHz Cortex-A7
  • Octa-core (4x1.5 GHz Cortex-A53 & 4x1.2 GHz Cortex-A53)
Graphics processor GPU
  • Mali-400
  • Adreno 405
Antutu 7 score * Unknown
  • 35247
GeekBench 4 Single Core * Unknown
  • 692
GeekBench 4 Multi-Core * Unknown
  • 3049
GeekBench 4 RenderScript * Unknown
  • 2110
GeekBench 5 Single Core * Unknown
  • 128
GeekBench 5 Multi-Core * Unknown
  • 663
General specs
General specs — specifications for J2, One A9.
SpecificationJ2One A9
Release date
  • 2019
  • December
  • 2015
  • September
Colors
  • Blue
  • Black
  • Brown
  • Carbon Gray
  • Opal Silver
  • Topaz Gold
  • Deep Garnet
  • Pink
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 50 EUR
  • 300 EUR
Battery life Unknown
  • Stand by time- Up to 432 h (3G) Talking time- Up to 16 h (3G) Music play - Up to 60 h
Communication and Connectivity
Communication and Connectivity — specifications for J2, One A9.
SpecificationJ2One A9
SIM card
  • Dual SIM (Nano-SIM
  • dual stand-by)
  • Nano-SIM
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 -3G - HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 - Americas HSDPA 850 / 900 / 1900 / 2100 -4G - LTE band 2(1900)
  • 3(1800)
  • 4(1700/2100)
  • 5(850)
  • 7(2600)
  • 12(700)
  • 13(700)
  • 17(700)
  • 29(700) - Americas LTE band 1(2100)
  • 8(900)
  • 20(800)
  • 28(700)
  • 38(2600)
  • 40(2300)
  • 41(2500) - EMEA/ Asia
Speed
  • HSPA 21.1/5.76 Mbps
  • HSPA
  • LTE-A Cat7 (2CA) 300/100 Mbps
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 A-GPS
  • GLONASS
USB
  • microUSB 2.0
  • microUSB 2.0
  • USB Host
Bluetooth
  • 4.1
  • A2DP
  • LE
  • 4.1
  • A2DP
  • aptX
Harmful irradiation Unknown
  • SAR EU - 0.41 W/kg (head)
Music and Audio
Music and Audio — specifications for J2, One A9.
SpecificationJ2One A9
Radio
  • FM radio
  • FM radio
Others Unknown
  • 24-bit/192kHz audio -Dolby audio enhancement -Active noise cancellation with dedicated mic
Other features
Other features — specifications for J2, One A9.
SpecificationJ2One A9
Dop
  • Sensors Accelerometer For USA
  • Sensors Fingerprint (front-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass - Fast battery charging (Quick Charge 3.0)