BLU J2 vs HTC Desire 820

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.

  • Weight

    J2: 9 g lighter

    J2:
    146 g
    Desire 820:
    155 g
  • Width

    J2: 5.6 mm narrower

    J2:
    73.1 mm
    Desire 820:
    78.7 mm
  • Screen diagonal

    J2: 0.5 in smaller diagonal

    J2:
    5 in
    Desire 820:
    5.5 in
  • Depth

    Desire 820: 2.6 mm thinner

    J2:
    10.3 mm
    Desire 820:
    7.7 mm
  • Height

    J2: 13.7 mm shorter

    J2:
    144 mm
    Desire 820:
    157.7 mm
  • Release year

    J2:
    2019
    Desire 820:
    2014

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 +2.6 mm versus Desire 820
  2. 2. Desire 820

    Height:
    157.7 mm +13.7 mm versus J2
    Width:
    78.7 mm +5.6 mm versus J2
    Depth:
    7.7 mm

Weight

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

  1. 1. J2

    146 g

  2. 2. Desire 820

    155 g

    +9 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. Desire 820

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

Desire 820 has approximately 21% 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, Desire 820, compared at the same storage capacity.
StorageJ2Desire 820
16 GB Not recorded 2 GB RAM
32 GB 1 GB RAM Not recorded

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. Desire 820

NFC:
See details Yes (optional)
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. Desire 820

    2600 mAh

    +600 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. Desire 820

Everyday essentials
Everyday essentials — specifications for J2, Desire 820.
SpecificationJ2Desire 820
Dimensions (HxWxD)
  • 144 Х 73.1 Х 10.3 mm
  • 157.7 Х 78.7 Х 7.7 mm
Weight
  • 146 g
  • 155 g
Technology
  • IPS LCD
  • LCD
Screen size
  • 5" inch
  • 5.5" inch
Screen resolution
  • 480 x 854 px
  • 720 x 1280 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 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
  • 2600 mAh
  • Non-removable Li-Po
Operating system OS
  • Android 8.1 Oreo (Go edition)
  • Android 4.4.2 (KitKat)
  • upgradable to 6.1 (Marshmallow); Sense UI 7
Chipset Unknown
  • Qualcomm MSM8939 Snapdragon 615 (28 nm)
NFC Unknown
  • Yes (optional)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for J2, Desire 820.
SpecificationJ2Desire 820
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 68.9 cm2
  • 83.4 cm2
Screen format
  • 16:9 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 65.4%
  • 67.2%
PPI /points per inch/
  • 196 PPI
  • 267 PPI
Screen protection Unknown
  • Corning Gorilla Glass 3
Camera and Video
Camera and Video — specifications for J2, Desire 820.
SpecificationJ2Desire 820
Rear camera, main
  • 5 MP
  • Single
  • 13 MP
  • Single
Camera specs
  • 5 MP
  • 13 MP
  • f/2.2
  • 28mm (wide)
  • AF
Functions
  • LED flash
  • LED flash
  • HDR
Video
  • 720p@30fps
  • 1080p@30fps
Front camera, selfie
  • 5 MP
  • Single
  • 8 MP
  • Single
Specifications
  • 5 MP
  • 8 MP
  • f/2.3
Performance

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

Performance — specifications for J2, Desire 820.
SpecificationJ2Desire 820
Processor CPU
  • Quad-core 1.3 GHz Cortex-A7
  • Octa-core (4x1.5 GHz Cortex-A53 & 4x1.0 GHz Cortex-A53)
Graphics processor GPU
  • Mali-400
  • Adreno 405
Antutu 7 score * Unknown
  • 37236
GeekBench 4 Single Core * Unknown
  • 573
GeekBench 4 Multi-Core * Unknown
  • 1447
GeekBench 4 RenderScript * Unknown
  • 1914
General specs
General specs — specifications for J2, Desire 820.
SpecificationJ2Desire 820
Release date
  • 2019
  • December
  • 2014
  • September
Colors
  • Blue
  • Black
  • Brown
  • Marble white
  • Tuxedo Grey
  • Santorini White
  • Milky-way Grey
  • Tangerine White
  • Saffron Grey
  • Flamingo Grey
  • Blue Misty
  • Monarch Orange
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 50 EUR
  • 340 EUR
Battery life Unknown
  • Stand by time- Up to 424 h (3G) Talking time- Up to 22 h 24 min (3G)
Communication and Connectivity
Communication and Connectivity — specifications for J2, Desire 820.
SpecificationJ2Desire 820
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 / 1900 / 2100 - EMEA
  • Asia HSDPA 850 / 900 / 2100 - Europe TD-SCDMA - Asia -4G - LTE band 3(1800)
  • 7(2600)
  • 8(900)
  • 20(800) - Europe LTE band 1(2100)
  • 3(1800)
  • 8(900) - EMEA LTE band 1(2100)
  • 28(700)
  • 38(2600)
  • 39(1900)
  • 40(2300)
  • 41(2500) - Asia
Speed
  • HSPA 21.1/5.76 Mbps
  • HSPA 42.2/5.76 Mbps
  • LTE Cat4 150/50 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
  • 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
  • 4.0
  • A2DP
  • aptX
Music and Audio
Music and Audio — specifications for J2, Desire 820.
SpecificationJ2Desire 820
Radio
  • FM radio
  • FM radio
Other features
Other features — specifications for J2, Desire 820.
SpecificationJ2Desire 820
Dop
  • Sensors Accelerometer For USA
  • Sensors Accelerometer
  • proximity
  • compass