Celkon A63 vs Samsung Galaxy M21

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

    A63: 2.4 in smaller diagonal

    A63:
    4 in
    Galaxy M21:
    6.4 in
  • Rear camera layout

    A63:
    Single
    Galaxy M21:
    Triple
  • Release year

    A63:
    2013
    Galaxy M21:
    2020

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. A63

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

    Unavailable dimensions are omitted from the drawing.

  2. 2. Galaxy M21

    Height:
    159 mm
    Width:
    75.1 mm
    Depth:
    8.9 mm
    Weight:
    188 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. A63

    Screen diagonal:
    4 in
    Aspect ratio (height:width):
    5:3
    Approximate rectangular screen area:
    45.5 cm²
  2. 2. Galaxy M21

    Screen diagonal:
    6.4 in
    Aspect ratio (height:width):
    19.5:9
    Approximate rectangular screen area:
    100.5 cm²

Galaxy M21 has approximately 120.8% more rectangular screen area than A63.

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 A63, Galaxy M21, compared at the same storage capacity.
StorageA63Galaxy M21
64 GB Unknown 4 GB RAM
128 GB Unknown 6 GB RAM
A63: 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. A63

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

2. Galaxy M21

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSDXC (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. A63

    1500 mAh

  2. 2. Galaxy M21

    6000 mAh

    +4500 mAh versus A63

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. A632. Galaxy M21

Everyday essentials
Everyday essentials — specifications for A63, Galaxy M21.
SpecificationA63Galaxy M21
Dimensions (HxWxD)
  • Х Х mm
  • 159 Х 75.1 Х 8.9 mm
Weight
  • 0 g
  • 188 g
Technology
  • TFT
  • Super AMOLED
Screen size
  • 4" inch
  • 6.4" inch
Screen resolution
  • 480 x 800 px
  • 1080 x 2340 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 512 MB
  • 256 MB RAM
  • 64GB 4GB RAM
  • 128GB 6GB RAM
Memory card support
  • microSD
  • up to 32 GB (dedicated slot)
  • microSDXC (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1500 mAh
  • Li-Ion
  • 6000 mAh
  • Non-removable Li-Po
Operating system OS
  • Android 4.2.0 (Jelly Bean)
  • Android 10.0; One UI 2
Chipset Unknown
  • Exynos 9611 (10nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for A63, Galaxy M21.
SpecificationA63Galaxy M21
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors Unknown
  • 16M
Screen area
  • 45.5 cm2
  • 100.5 cm2
Screen format
  • 5:3 (height:width)
  • 19.5:9 (height:width)
Screen to body ratio Unknown
  • 84.2%
PPI /points per inch/
  • 233 PPI
  • 403 PPI
Screen protection Unknown
  • Corning Gorilla Glass 3
Camera and Video
Camera and Video — specifications for A63, Galaxy M21.
SpecificationA63Galaxy M21
Rear camera, main
  • 3.15 MP
  • Single
  • 48 MP
  • Triple
Camera specs
  • 3.15 MP
  • 48 MP
  • f/2.0
  • 26mm (wide)
  • 1/2.0''
  • 0.8µm
  • PDAF -8 MP
  • f/2.2
  • 12mm (ultrawide)
  • 1/4.0''
  • 1.12µm -5 MP
  • (depth)
Functions Unknown
  • HDR
Video
  • Yes
  • 1080p@30fps
Front camera, selfie
  • 0.3 MP
  • Single
  • 20 MP
  • Single
Specifications
  • VGA
  • 20 MP
  • f/2.0
  • 26mm (wide)
Performance

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

Performance — specifications for A63, Galaxy M21.
SpecificationA63Galaxy M21
Processor CPU
  • Dual-core 1.2 GHz
  • Octa-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53)
Graphics processor GPU Unknown
  • Mali-G72 MP3
Antutu 8 score * Unknown
  • 182451
General specs
General specs — specifications for A63, Galaxy M21.
SpecificationA63Galaxy M21
Release date
  • 2013
  • August
  • 2020
  • March 18
Colors
  • Black
  • Midnight Blue
  • Raven Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 50 EUR
  • 160 EUR
Body build Unknown
  • Glass front (Gorilla Glass 3)
  • plastic back
  • plastic frame
Communication and Connectivity
Communication and Connectivity — specifications for A63, Galaxy M21.
SpecificationA63Galaxy M21
SIM card
  • Dual SIM (Mini-SIM)
  • 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 850 / 900 / 1900 / 2100 -4G - LTE band 1(2100)
  • 3(1800)
  • 5(850)
  • 7(2600)
  • 8(900)
  • 20(800)
  • 38(2600)
  • 40(2300)
  • 41(2500)
Speed Unknown
  • HSPA
  • LTE-A
GPRS
  • Class 12
  • Yes
Edge
  • Class 12
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • Wi-Fi Direct
  • hotspot
GPS
  • No
  • Yes
  • with A-GPS
  • GLONASS
  • BDS
USB
  • microUSB 2.0
  • 2.0
  • Type-C 1.0 reversible connector
Bluetooth
  • Yes
  • 5.0
  • A2DP
  • LE
Harmful irradiation
  • SAR EU - 0.91 W/kg (head) 0.63 W/kg (body)
  • SAR - 0.47 W/kg (head)
Music and Audio
Music and Audio — specifications for A63, Galaxy M21.
SpecificationA63Galaxy M21
Radio Unknown
  • FM radio
  • RDS
  • recording
Others Unknown
  • 420 nits max brightness
Other features
Other features — specifications for A63, Galaxy M21.
SpecificationA63Galaxy M21
Dop
  • Sensors Proximity
  • gyro
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass - Fast charging 15W