BLU J2 vs Energizer Energy E520 LTE

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: 60 g lighter

    J2:
    146 g
    Energy E520 LTE:
    206 g
  • Width

    J2: 3.1 mm narrower

    J2:
    73.1 mm
    Energy E520 LTE:
    76.2 mm
  • Screen diagonal

    J2: 0.2 in smaller diagonal

    J2:
    5 in
    Energy E520 LTE:
    5.2 in
  • Depth

    J2: 0.8 mm thinner

    J2:
    10.3 mm
    Energy E520 LTE:
    11.1 mm
  • Height

    J2: 6.8 mm shorter

    J2:
    144 mm
    Energy E520 LTE:
    150.8 mm
  • Release year

    J2:
    2019
    Energy E520 LTE:
    2017

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. 2. Energy E520 LTE

    Height:
    150.8 mm +6.8 mm versus J2
    Width:
    76.2 mm +3.1 mm versus J2
    Depth:
    11.1 mm +0.8 mm versus J2

Weight

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

  1. 1. J2

    146 g

  2. 2. Energy E520 LTE

    206 g

    +60 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. Energy E520 LTE

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

Energy E520 LTE has approximately 8.2% 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, Energy E520 LTE, compared at the same storage capacity.
StorageJ2Energy E520 LTE
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. Energy E520 LTE

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 32 GB (uses SIM 2 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. Energy E520 LTE

    4000 mAh

    +2000 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. Energy E520 LTE

Everyday essentials
Everyday essentials — specifications for J2, Energy E520 LTE.
SpecificationJ2Energy E520 LTE
Dimensions (HxWxD)
  • 144 Х 73.1 Х 10.3 mm
  • 150.8 Х 76.2 Х 11.1 mm
Weight
  • 146 g
  • 206 g
Technology
  • IPS LCD
  • LTPS IPS LCD
Screen size
  • 5" inch
  • 5.2" 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 32 GB (uses SIM 2 slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 2000 mAh
  • Li-Po
  • 4000 mAh
  • Non-removable Li-Ion
Operating system OS
  • Android 8.1 Oreo (Go edition)
  • Android 6.0 (Marshmallow)
Chipset Unknown
  • Mediatek MT6737 (28 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for J2, Energy E520 LTE.
SpecificationJ2Energy E520 LTE
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 68.9 cm2
  • 74.5 cm2
Screen format
  • 16:9 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 65.4%
  • 64.9%
PPI /points per inch/
  • 196 PPI
  • 282 PPI
Screen protection Unknown
  • Corning Gorilla Glass 3
Camera and Video
Camera and Video — specifications for J2, Energy E520 LTE.
SpecificationJ2Energy E520 LTE
Rear camera, main
  • 5 MP
  • Single
  • 13 MP
  • Single
Camera specs
  • 5 MP
  • 13 MP
  • AF
Functions
  • LED flash
  • LED flash
  • HDR
  • panorama
Video
  • 720p@30fps
  • 1080p@30fps
Front camera, selfie
  • 5 MP
  • Single
  • 5 MP
  • Single
Specifications
  • 5 MP
  • 5 MP
Performance

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

Performance — specifications for J2, Energy E520 LTE.
SpecificationJ2Energy E520 LTE
Processor CPU
  • Quad-core 1.3 GHz Cortex-A7
  • Quad-core 1.3 GHz Cortex-A53
Graphics processor GPU
  • Mali-400
  • Mali-T720
Antutu 7 score * Unknown
  • 29852
GeekBench 4 Single Core * Unknown
  • 528
GeekBench 4 Multi-Core * Unknown
  • 1486
General specs
General specs — specifications for J2, Energy E520 LTE.
SpecificationJ2Energy E520 LTE
Release date
  • 2019
  • December
  • 2017
  • September
Colors
  • Blue
  • Black
  • Brown
  • Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 50 EUR
  • 330 EUR
Battery life Unknown
  • Stand by time- Up to 220 h (3G) Talking time- Up to 15 h (3G)
Communication and Connectivity
Communication and Connectivity — specifications for J2, Energy E520 LTE.
SpecificationJ2Energy E520 LTE
SIM card
  • Dual SIM (Nano-SIM
  • dual stand-by)
  • Hybrid 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 900 / 2100 -4G - LTE band 1(2100)
  • 3(1800)
  • 7(2600)
  • 8(900)
  • 20(800)
Speed
  • HSPA 21.1/5.76 Mbps
  • HSPA 42.2/11.5 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 b/g/n
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
  • GLONASS
USB
  • microUSB 2.0
  • microUSB 2.0
Bluetooth
  • 4.1
  • A2DP
  • LE
  • 4.0
  • A2DP
  • LE
Harmful irradiation Unknown
  • SAR - 0.26 W/kg (head) 0.60 W/kg (body)
Music and Audio
Music and Audio — specifications for J2, Energy E520 LTE.
SpecificationJ2Energy E520 LTE
Radio
  • FM radio
  • FM radio
Other features
Other features — specifications for J2, Energy E520 LTE.
SpecificationJ2Energy E520 LTE
Dop
  • Sensors Accelerometer For USA
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • proximity
  • compass - IP68 dust/water proof (up to 1.5m for 30 mins) -MIL-STD-810G compliant