Celkon A64 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

    A64: 80.4 g lighter

    A64:
    125.6 g
    Energy E520 LTE:
    206 g
  • Width

    A64: 11.2 mm narrower

    A64:
    65 mm
    Energy E520 LTE:
    76.2 mm
  • Screen diagonal

    A64: 1.2 in smaller diagonal

    A64:
    4 in
    Energy E520 LTE:
    5.2 in
  • Depth

    A64: 0.6 mm thinner

    A64:
    10.5 mm
    Energy E520 LTE:
    11.1 mm
  • Height

    A64: 26.8 mm shorter

    A64:
    124 mm
    Energy E520 LTE:
    150.8 mm
  • Release year

    A64:
    2014
    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. A64

    Height:
    124 mm
    Width:
    65 mm
    Depth:
    10.5 mm
  2. 2. Energy E520 LTE

    Height:
    150.8 mm +26.8 mm versus A64
    Width:
    76.2 mm +11.2 mm versus A64
    Depth:
    11.1 mm +0.6 mm versus A64

Weight

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

  1. 1. A64

    125.6 g

  2. 2. Energy E520 LTE

    206 g

    +80.4 g versus A64

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. A64

    Screen diagonal:
    4 in
    Aspect ratio (height:width):
    3:2
    Approximate rectangular screen area:
    47.6 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 56.5% more rectangular screen area than A64.

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 A64, Energy E520 LTE, compared at the same storage capacity.
StorageA64Energy E520 LTE
16 GB Unknown 2 GB RAM
A64: Original memory entry

512 MB · 256 MB 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. A64

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 32 GB

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. A64

    1400 mAh

  2. 2. Energy E520 LTE

    4000 mAh

    +2600 mAh versus A64

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. A642. Energy E520 LTE

Everyday essentials
Everyday essentials — specifications for A64, Energy E520 LTE.
SpecificationA64Energy E520 LTE
Dimensions (HxWxD)
  • 124 Х 65 Х 10.5 mm
  • 150.8 Х 76.2 Х 11.1 mm
Weight
  • 125.6 g
  • 206 g
Technology
  • TFT
  • LTPS IPS LCD
Screen size
  • 4" inch
  • 5.2" inch
Screen resolution
  • 320 x 480 px
  • 720 x 1280 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 512 MB
  • 256 MB RAM
  • 16 GB
  • 2 GB RAM
Memory card support
  • microSD
  • up to 32 GB
  • microSD
  • up to 32 GB (uses SIM 2 slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1400 mAh
  • Li-Ion
  • 4000 mAh
  • Non-removable Li-Ion
Operating system OS
  • Android 4.2.2 (Jelly Bean)
  • Android 6.0 (Marshmallow)
Chipset Unknown
  • Mediatek MT6737 (28 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for A64, Energy E520 LTE.
SpecificationA64Energy E520 LTE
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors Unknown
  • 16M
Screen area
  • 47.6 cm2
  • 74.5 cm2
Screen format
  • 3:2 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 59.1%
  • 64.9%
PPI /points per inch/
  • 144 PPI
  • 282 PPI
Screen protection Unknown
  • Corning Gorilla Glass 3
Camera and Video
Camera and Video — specifications for A64, Energy E520 LTE.
SpecificationA64Energy E520 LTE
Rear camera, main
  • 2 MP
  • Single
  • 13 MP
  • Single
Camera specs
  • 2 MP
  • 13 MP
  • AF
Functions
  • LED flash
  • LED flash
  • HDR
  • panorama
Video
  • Yes
  • 1080p@30fps
Front camera, selfie
  • 0.3 MP
  • Single
  • 5 MP
  • Single
Specifications
  • VGA
  • 5 MP
Performance

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

Performance — specifications for A64, Energy E520 LTE.
SpecificationA64Energy E520 LTE
Processor CPU
  • Dual-core 1.2 GHz
  • Quad-core 1.3 GHz Cortex-A53
Graphics processor GPU Unknown
  • 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 A64, Energy E520 LTE.
SpecificationA64Energy E520 LTE
Release date
  • 2014
  • 2017
  • September
Colors
  • White
  • Black
  • Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer. Unknown
  • 330 EUR
Battery life
  • Stand by time- Up to 150 h Talking time- Up to 8 h 20 min
  • Stand by time- Up to 220 h (3G) Talking time- Up to 15 h (3G)
Communication and Connectivity
Communication and Connectivity — specifications for A64, Energy E520 LTE.
SpecificationA64Energy E520 LTE
SIM card
  • Dual SIM
  • Hybrid Dual SIM (Nano-SIM
  • dual stand-by)
Network Unknown
  • 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 Unknown
  • 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
  • hotspot
  • Wi-Fi 802.11 b/g/n
  • hotspot
GPS
  • Yes
  • Yes
  • with A-GPS
  • GLONASS
USB
  • microUSB
  • microUSB 2.0
Bluetooth
  • 2.0
  • 4.0
  • A2DP
  • LE
Harmful irradiation
  • SAR EU - 0.42 W/kg (head) 0.55 W/kg (body)
  • SAR - 0.26 W/kg (head) 0.60 W/kg (body)
Music and Audio
Music and Audio — specifications for A64, Energy E520 LTE.
SpecificationA64Energy E520 LTE
Radio
  • FM radio
  • FM radio
Other features
Other features — specifications for A64, Energy E520 LTE.
SpecificationA64Energy E520 LTE
Dop
  • Sensors Accelerometer
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • proximity
  • compass - IP68 dust/water proof (up to 1.5m for 30 mins) -MIL-STD-810G compliant