Celkon A66 vs verykool sl5050 Phantom

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

    A66: 23 g lighter

    A66:
    98 g
    sl5050 Phantom:
    121 g
  • Width

    A66: 3.3 mm narrower

    A66:
    67.2 mm
    sl5050 Phantom:
    70.5 mm
  • Screen diagonal

    A66: 0.5 in smaller diagonal

    A66:
    4.5 in
    sl5050 Phantom:
    5 in
  • Depth

    sl5050 Phantom: 3.8 mm thinner

    A66:
    11 mm
    sl5050 Phantom:
    7.2 mm
  • Height

    A66: 9.5 mm shorter

    A66:
    136 mm
    sl5050 Phantom:
    145.5 mm
  • Release year

    A66:
    2014
    sl5050 Phantom:
    2016

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. A66

    Height:
    136 mm
    Width:
    67.2 mm
    Depth:
    11 mm +3.8 mm versus sl5050 Phantom
  2. 2. sl5050 Phantom

    Height:
    145.5 mm +9.5 mm versus A66
    Width:
    70.5 mm +3.3 mm versus A66
    Depth:
    7.2 mm

Weight

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

  1. 1. A66

    98 g

  2. 2. sl5050 Phantom

    121 g

    +23 g versus A66

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. A66

    Screen diagonal:
    4.5 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    55.8 cm²
  2. 2. sl5050 Phantom

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

sl5050 Phantom has approximately 23.5% more rectangular screen area than A66.

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 A66, sl5050 Phantom, compared at the same storage capacity.
StorageA66sl5050 Phantom
16 GB Unknown 1 GB RAM
A66: Original memory entry

4 GB · 512 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. A66

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

2. sl5050 Phantom

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 64 GB

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. A66

    2000 mAh

  2. 2. sl5050 Phantom

    2500 mAh

    +500 mAh versus A66

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. A662. sl5050 Phantom

Everyday essentials
Everyday essentials — specifications for A66, sl5050 Phantom.
SpecificationA66sl5050 Phantom
Dimensions (HxWxD)
  • 136 Х 67.2 Х 11 mm
  • 145.5 Х 70.5 Х 7.2 mm
Weight
  • 98 g
  • 121 g
Technology
  • TFT
  • AMOLED
Screen size
  • 4.5" inch
  • 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.
  • 4 GB
  • 512 MB RAM
  • 16 GB
  • 1 GB RAM
Memory card support
  • microSD
  • up to 32 GB
  • microSD
  • up to 64 GB
Battery Capacity is not battery life. No endurance test is implied.
  • 2000 mAh
  • Li-Ion
  • 2500 mAh
  • Non-removable Li-Po
Operating system OS
  • Android 4.1.2 (Jelly Bean)
  • Android 6.0 (Marshmallow)
Chipset Unknown
  • Mediatek MT6737 (28 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for A66, sl5050 Phantom.
SpecificationA66sl5050 Phantom
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors Unknown
  • 16M
Screen area
  • 55.8 cm2
  • 68.9 cm2
Screen format
  • 16:9 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 61.1%
  • 67.2%
PPI /points per inch/
  • 218 PPI
  • 294 PPI
Screen protection Unknown
  • Asahi Dragontrail Glass
Camera and Video
Camera and Video — specifications for A66, sl5050 Phantom.
SpecificationA66sl5050 Phantom
Rear camera, main
  • 3.15 MP
  • Single
  • 16 MP
  • Single
Camera specs
  • 3.15 MP
  • 16 MP
  • AF
  • f/2.4
Functions
  • LED flash
  • LED flash
Video
  • Yes
  • 720p@30fps
Front camera, selfie
  • 0.3 MP
  • Single
  • 8 MP
  • Single
Specifications
  • VGA
  • 8 MP
  • f/2.8
Performance
Performance — specifications for A66, sl5050 Phantom.
SpecificationA66sl5050 Phantom
Processor CPU
  • Dual-core 1.2 GHz
  • Quad-core 1.3 GHz Cortex-A53
Graphics processor GPU Unknown
  • Mali-T720
General specs
General specs — specifications for A66, sl5050 Phantom.
SpecificationA66sl5050 Phantom
Release date
  • 2014
  • 2016
  • November
Colors
  • White
  • Black
  • Dark Blue
  • Gold
Battery life
  • Stand by time- Up to 160 h Talking time- Up to 5 h
  • Stand by time- Up to 240 h (3G) Talking time- Up to 8 h (3G)
Communication and Connectivity
Communication and Connectivity — specifications for A66, sl5050 Phantom.
SpecificationA66sl5050 Phantom
SIM card
  • Dual SIM
  • Dual SIM (Micro-SIM
  • dual stand-by)
Network Unknown
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 850 / 1700(AWS) / 1900 / 2100 -4G - LTE band 2(1900)
  • 4(1700/2100)
  • 5(850)
  • 7(2600)
  • 12(700)
  • 17(700)
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
  • Wi-Fi Direct
  • hotspot
GPS
  • Yes
  • Yes
  • with A-GPS
USB
  • microUSB
  • microUSB 2.0
Bluetooth
  • 2.0
  • 4.0
  • A2DP
  • LE
Harmful irradiation
  • SAR EU - 0.38 W/kg (head) 0.47 W/kg (body)
Unknown
Music and Audio
Music and Audio — specifications for A66, sl5050 Phantom.
SpecificationA66sl5050 Phantom
Radio
  • FM radio
  • Stereo FM radio
Other features
Other features — specifications for A66, sl5050 Phantom.
SpecificationA66sl5050 Phantom
Dop
  • Sensors Accelerometer
  • proximity
  • Sensors Accelerometer
  • proximity