Celkon A20 vs verykool s450

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.

  • Screen diagonal

    A20: 0.5 in smaller diagonal

    A20:
    4 in
    s450:
    4.5 in
  • Release year

    A20:
    2013
    s450:
    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. A20

    Height:
    Unknown
    Width:
    Unknown
    Depth:
    Unknown
    Weight:
    Unknown

    Unavailable dimensions are omitted from the drawing.

  2. 2. s450

    Height:
    131.4 mm
    Width:
    66.8 mm
    Depth:
    9.9 mm
    Weight:
    132.5 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. A20

    Screen diagonal:
    4 in
    Aspect ratio (height:width):
    5:3
    Approximate rectangular screen area:
    45.5 cm²
  2. 2. s450

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

s450 has approximately 22.6% more rectangular screen area than A20.

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.

No unambiguous storage/RAM pairings are recorded. See the original specifications below.

A20: Original memory entry

256 MB · 512 MB RAM

s450: 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. A20

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

2. s450

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 32 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. A20

    1500 mAh

  2. 2. s450

    1750 mAh

    +250 mAh versus A20

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. A202. s450

Everyday essentials
Everyday essentials — specifications for A20, s450.
SpecificationA20s450
Dimensions (HxWxD)
  • Х Х mm
  • 131.4 Х 66.8 Х 9.9 mm
Weight
  • 0 g
  • 132.5 g
Technology
  • TFT
  • IPS LCD
Screen size
  • 4" inch
  • 4.5" inch
Screen resolution
  • 480 x 800 px
  • 480 x 854 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 256 MB
  • 512 MB RAM
  • 4 GB
  • 512 MB RAM
Memory card support
  • microSD
  • up to 32 GB (dedicated slot)
  • microSD
  • up to 32 GB
Battery Capacity is not battery life. No endurance test is implied.
  • 1500 mAh
  • Li-Ion
  • 1750 mAh
  • Removable Li-Ion
Operating system OS
  • Android 4.2.0 (Jelly Bean)
  • Android 4.2 (Jelly Bean)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for A20, s450.
SpecificationA20s450
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors Unknown
  • 16M
Screen area
  • 45.5 cm2
  • 55.8 cm2
Screen format
  • 5:3 (height:width)
  • 16:9 (height:width)
Screen to body ratio Unknown
  • 63.6%
PPI /points per inch/
  • 233 PPI
  • 218 PPI
Camera and Video
Camera and Video — specifications for A20, s450.
SpecificationA20s450
Rear camera, main
  • 3.15 MP
  • Single
  • 8 MP
  • Single
Camera specs
  • 3.15 MP
  • 8 MP
Video
  • Yes
  • Yes
Front camera, selfie
  • 0.3 MP
  • Single
  • 0.3 MP
  • Single
Specifications
  • VGA
  • VGA
Performance
Performance — specifications for A20, s450.
SpecificationA20s450
Processor CPU
  • Dual-core 1.2 GHz
  • Dual-core 1.2 GHz
General specs
General specs — specifications for A20, s450.
SpecificationA20s450
Release date
  • 2013
  • August
  • 2014
  • May
Colors
  • Black
  • Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 60 EUR
Unknown
Battery life Unknown
  • Stand by time- Up to 240 h (3G) Talking time- Up to 5 h (3G)
Communication and Connectivity
Communication and Connectivity — specifications for A20, s450.
SpecificationA20s450
SIM card
  • Dual SIM (Mini-SIM)
  • Single SIMDual SIM (dual stand-by)
Network
  • Show all network frequencies: -2G - GSM 900 / 1800 - SIM 1 & SIM 2
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM1 & SIM 2 (optional)
Speed
  • Yes
  • 384 kbps
  • HSPA 21.1/5.76 Mbps
GPRS
  • Class 12
  • Yes
Edge
  • Class 12
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi 802.11 b/g/n
  • hotspot
GPS
  • No
  • Yes
  • with A-GPS
USB
  • microUSB 2.0
  • microUSB
Bluetooth
  • Yes
  • 4.0
  • A2DP
Harmful irradiation
  • SAR EU - 0.88 W/kg (head) 0.60 W/kg (body)
Unknown
Music and Audio
Music and Audio — specifications for A20, s450.
SpecificationA20s450
Radio Unknown
  • FM radio
Other features
Other features — specifications for A20, s450.
SpecificationA20s450
Dop
  • Sensors Proximity
  • gyro
  • Sensors Accelerometer
  • proximity - Flashlight