Dell XCD28 vs Samsung Galaxy A21

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

    XCD28: 3.7 in smaller diagonal

    XCD28:
    2.8 in
    Galaxy A21:
    6.5 in
  • Rear camera layout

    XCD28:
    Single
    Galaxy A21:
    Quad
  • Release year

    XCD28:
    2010
    Galaxy A21:
    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. XCD28

    Height:
    102 mm
    Width:
    55 mm
    Depth:
    14.5 mm
    Weight:
    100 g
  2. 2. Galaxy A21

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

    Unavailable dimensions are omitted from the drawing.

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. XCD28

    Screen diagonal:
    2.8 in
    Aspect ratio (height:width):
    4:3
    Approximate rectangular screen area:
    24.3 cm²
  2. 2. Galaxy A21

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

Galaxy A21 has approximately 320.1% more rectangular screen area than XCD28.

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 XCD28, Galaxy A21, compared at the same storage capacity.
StorageXCD28Galaxy A21
32 GB Unknown 3 GB RAM
XCD28: Original memory entry

256 MB RAM · 256 MB

Practical features

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

1. XCD28

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 8 GB (dedicated slot) · 2 GB included

2. Galaxy A21

NFC:
See details Yes (market/region dependent)
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. XCD28

    1100 mAh

  2. 2. Galaxy A21

    4000 mAh

    +2900 mAh versus XCD28

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. XCD282. Galaxy A21

Everyday essentials
Everyday essentials — specifications for XCD28, Galaxy A21.
SpecificationXCD28Galaxy A21
Dimensions (HxWxD)
  • 102 Х 55 Х 14.5 mm
  • Х Х mm
Weight
  • 100 g
  • 0 g
Technology
  • TFT
  • Super AMOLED
Screen size
  • 2.8" inch
  • 6.5" inch
Screen resolution
  • 240 x 320 px
  • 720 x 1600 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 256 MB RAM
  • 256 MB
  • 32GB 3GB RAM
Memory card support
  • microSD
  • up to 8 GB (dedicated slot)
  • 2 GB included
  • microSDXC (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1100 mAh
  • Removable Li-Ion
  • 4000 mAh
  • Non-removable Li-Po
Operating system OS
  • Android 2.1 (Eclair)
  • Android 10.0; One UI 2.0
Chipset
  • Qualcomm MSM7227 Snapdragon S1
Unknown
NFC Unknown
  • Yes (market/region dependent)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for XCD28, Galaxy A21.
SpecificationXCD28Galaxy A21
Touchscreen
  • resistive touchscreen
  • capacitive touchscreen
Display colors
  • 256K
  • 16M
Screen area
  • 24.3 cm2
  • 102.0 cm2
Screen format
  • 4:3 (height:width)
  • 20:9 (height:width)
Screen to body ratio
  • 43.3%
Unknown
PPI /points per inch/
  • 143 PPI
  • 270 PPI
Camera and Video
Camera and Video — specifications for XCD28, Galaxy A21.
SpecificationXCD28Galaxy A21
Rear camera, main
  • 3.15 MP
  • Single
  • 16 MP
  • Quad
Camera specs
  • 3.15 MP
  • AF
  • 16 MP
  • (wide)
  • AF -8 MP
  • (ultrawide) -2 MP
  • (macro) -2 MP
  • (depth)
Functions Unknown
  • LED flash
  • panorama
  • HDR
Video
  • Yes
  • 1080p@30fps
Front camera, selfie
  • 0 MP,
  • 13 MP
  • Single
Specifications Unknown
  • 13 MP
  • (wide)
Performance
Performance — specifications for XCD28, Galaxy A21.
SpecificationXCD28Galaxy A21
Processor CPU
  • 600 MHz ARM 11
Unknown
Graphics processor GPU
  • Adreno 200
Unknown
General specs
General specs — specifications for XCD28, Galaxy A21.
SpecificationXCD28Galaxy A21
Release date
  • 2010
  • November
  • 2020
  • April 8
Colors
  • Black
  • Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 180 EUR
  • 250 EUR
Body build Unknown
  • Glass front
  • plastic back
  • plastic frame
Communication and Connectivity
Communication and Connectivity — specifications for XCD28, Galaxy A21.
SpecificationXCD28Galaxy A21
SIM card
  • Mini-SIM
  • Single SIM (Nano-SIM)Dual SIM (Nano-SIM
  • dual stand-by)
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900
  • 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
Speed
  • HSPA 7.2/0.384 Mbps
  • HSPA 42.2/5.76 Mbps
  • LTE Cat4 150/50 Mbps
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi Direct
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
  • GLONASS
  • BDS
USB
  • microUSB 2.0
  • Yes
Bluetooth
  • 2.1
  • A2DP
  • EDR
  • 5.0
  • A2DP
  • LE
Music and Audio
Music and Audio — specifications for XCD28, Galaxy A21.
SpecificationXCD28Galaxy A21
Radio
  • Stereo FM radio
  • RDS
  • FM radio
Other features
Other features — specifications for XCD28, Galaxy A21.
SpecificationXCD28Galaxy A21
Dop
  • MP4/H.264 player -MP3/WAV/eAAC+ player -Organizer -Document viewer -Voice memo -Predictive text input
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • proximity
  • compass - Fast charging 15W - Preliminary specifications