Samsung Galaxy A21 vs verykool s728

Compare recorded specifications, size and practical differences.

+ Add a third phone

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

    s728: 3.7 in smaller diagonal

    Galaxy A21:
    6.5 in
    s728:
    2.8 in
  • Rear camera layout

    Galaxy A21:
    Quad
    s728:
    Single
  • Release year

    Galaxy A21:
    2020
    s728:
    2012

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. Galaxy A21

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

    Unavailable dimensions are omitted from the drawing.

  2. 2. s728

    Height:
    104 mm
    Width:
    56.8 mm
    Depth:
    12.9 mm
    Weight:
    90 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. Galaxy A21

    Screen diagonal:
    6.5 in
    Aspect ratio (height:width):
    20:9
    Approximate rectangular screen area:
    102 cm²
  2. 2. s728

    Screen diagonal:
    2.8 in
    Aspect ratio (height:width):
    4:3
    Approximate rectangular screen area:
    24.3 cm²

Galaxy A21 has approximately 320.1% more rectangular screen area than s728.

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 Galaxy A21, s728, compared at the same storage capacity.
StorageGalaxy A21s728
32 GB 3 GB RAM Unknown

Practical features

Explicit Yes and No values are shown directly. Qualified or regional records retain their details. Unknown means the record is missing.

1. Galaxy A21

NFC:
See details Yes (market/region dependent)
Headphone jack:
Yes
Memory card support:
See details microSDXC (dedicated slot)

2. s728

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 32 GB (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. Galaxy A21

    4000 mAh

    +2890 mAh versus s728

  2. 2. s728

    1110 mAh

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. Galaxy A212. s728

Everyday essentials
Everyday essentials — specifications for Galaxy A21, s728.
SpecificationGalaxy A21s728
Dimensions (HxWxD)
  • Х Х mm
  • 104 Х 56.8 Х 12.9 mm
Weight
  • 0 g
  • 90 g
Technology
  • Super AMOLED
  • TFT
Screen size
  • 6.5" inch
  • 2.8" inch
Screen resolution
  • 720 x 1600 px
  • 240 x 320 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 32GB 3GB RAM
Unknown
Memory card support
  • microSDXC (dedicated slot)
  • microSD
  • up to 32 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 4000 mAh
  • Non-removable Li-Po
  • 1110 mAh
  • Removable Li-Ion
Operating system OS
  • Android 10.0; One UI 2.0
  • Android 2.3.5 (Gingerbread)
NFC
  • Yes (market/region dependent)
Unknown
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Galaxy A21, s728.
SpecificationGalaxy A21s728
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
Unknown
Screen area
  • 102.0 cm2
  • 24.3 cm2
Screen format
  • 20:9 (height:width)
  • 4:3 (height:width)
Screen to body ratio Unknown
  • 41.1%
PPI /points per inch/
  • 270 PPI
  • 143 PPI
Camera and Video
Camera and Video — specifications for Galaxy A21, s728.
SpecificationGalaxy A21s728
Rear camera, main
  • 16 MP
  • Quad
  • 3.2 MP
  • Single
Camera specs
  • 16 MP
  • (wide)
  • AF -8 MP
  • (ultrawide) -2 MP
  • (macro) -2 MP
  • (depth)
  • 3.2 MP
Functions
  • LED flash
  • panorama
  • HDR
Unknown
Video
  • 1080p@30fps
  • Yes
Front camera, selfie
  • 13 MP
  • Single
  • 0.3 MP
  • Single
Specifications
  • 13 MP
  • (wide)
  • VGA
Performance
Performance — specifications for Galaxy A21, s728.
SpecificationGalaxy A21s728
Processor CPU Unknown
  • 650 MHz
General specs
General specs — specifications for Galaxy A21, s728.
SpecificationGalaxy A21s728
Release date
  • 2020
  • April 8
  • 2012
  • October
Colors
  • Black
  • Black
  • White
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 250 EUR
Unknown
Body build
  • Glass front
  • plastic back
  • plastic frame
Unknown
Communication and Connectivity
Communication and Connectivity — specifications for Galaxy A21, s728.
SpecificationGalaxy A21s728
SIM card
  • Single SIM (Nano-SIM)Dual SIM (Nano-SIM
  • dual stand-by)
  • Dual SIM (Mini-SIM)
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM only) -3G - HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 1700(AWS) / 1900 / 2100 -4G - LTE
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
Speed
  • HSPA 42.2/5.76 Mbps
  • LTE Cat4 150/50 Mbps
  • HSPA 7.2/0.384 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
  • GLONASS
  • BDS
  • Yes
  • with A-GPS
USB
  • Yes
  • Proprietary
Bluetooth
  • 5.0
  • A2DP
  • LE
  • 2.0
  • A2DP
Music and Audio
Music and Audio — specifications for Galaxy A21, s728.
SpecificationGalaxy A21s728
Radio
  • FM radio
  • FM radio
Other features
Other features — specifications for Galaxy A21, s728.
SpecificationGalaxy A21s728
Dop
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • proximity
  • compass - Fast charging 15W - Preliminary specifications
  • Sensors Accelerometer
  • proximity - Analog TV -MP3 player