Samsung Galaxy A21 vs Samsung i900 Omnia

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

    i900 Omnia: 3.3 in smaller diagonal

    Galaxy A21:
    6.5 in
    i900 Omnia:
    3.2 in
  • Rear camera layout

    Galaxy A21:
    Quad
    i900 Omnia:
    Single
  • Release year

    Galaxy A21:
    2020
    i900 Omnia:
    2008

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. i900 Omnia

    Height:
    112 mm
    Width:
    56.9 mm
    Depth:
    12.5 mm
    Weight:
    122 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. i900 Omnia

    Screen diagonal:
    3.2 in
    Aspect ratio (height:width):
    5:3
    Approximate rectangular screen area:
    29.1 cm²

Galaxy A21 has approximately 250% more rectangular screen area than i900 Omnia.

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, i900 Omnia, compared at the same storage capacity.
StorageGalaxy A21i900 Omnia
32 GB 3 GB RAM Unknown
i900 Omnia: Original memory entry

8/16 GB · 128 MB RAM · 256 MB ROM

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. i900 Omnia

NFC:
Unknown
Headphone jack:
No
Memory card support:
See details microSD · up to 16 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

    +2560 mAh versus i900 Omnia

  2. 2. i900 Omnia

    1440 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. i900 Omnia

Everyday essentials
Everyday essentials — specifications for Galaxy A21, i900 Omnia.
SpecificationGalaxy A21i900 Omnia
Dimensions (HxWxD)
  • Х Х mm
  • 112 Х 56.9 Х 12.5 mm
Weight
  • 0 g
  • 122 g
Technology
  • Super AMOLED
  • TFT
Screen size
  • 6.5" inch
  • 3.2" inch
Screen resolution
  • 720 x 1600 px
  • 240 x 400 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 32GB 3GB RAM
  • 8/16 GB
  • 128 MB RAM
  • 256 MB ROM
Memory card support
  • microSDXC (dedicated slot)
  • microSD
  • up to 16 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 4000 mAh
  • Non-removable Li-Po
  • 1440 mAh
  • Removable Li-Ion
Operating system OS
  • Android 10.0; One UI 2.0
  • Microsoft Windows Mobile 6.1 Professional
NFC
  • Yes (market/region dependent)
Unknown
Headphone jack
  • Yes
  • No
Display
Display — specifications for Galaxy A21, i900 Omnia.
SpecificationGalaxy A21i900 Omnia
Touchscreen
  • capacitive touchscreen
  • resistive touchscreen
Display colors
  • 16M
Unknown
Screen area
  • 102.0 cm2
  • 29.1 cm2
Screen format
  • 20:9 (height:width)
  • 5:3 (height:width)
Screen to body ratio Unknown
  • 45.7%
PPI /points per inch/
  • 270 PPI
  • 146 PPI
Camera and Video
Camera and Video — specifications for Galaxy A21, i900 Omnia.
SpecificationGalaxy A21i900 Omnia
Rear camera, main
  • 16 MP
  • Quad
  • 5 MP
  • Single
Camera specs
  • 16 MP
  • (wide)
  • AF -8 MP
  • (ultrawide) -2 MP
  • (macro) -2 MP
  • (depth)
  • 5 MP
  • AF
Functions
  • LED flash
  • panorama
  • HDR
  • LED flash
Video
  • 1080p@30fps
  • Yes
Front camera, selfie
  • 13 MP
  • Single
  • 0.3 MP
  • Single
Specifications
  • 13 MP
  • (wide)
  • Videocall camera
Performance
Performance — specifications for Galaxy A21, i900 Omnia.
SpecificationGalaxy A21i900 Omnia
Processor CPU Unknown
  • Marvell PXA312 624 MHz
General specs
General specs — specifications for Galaxy A21, i900 Omnia.
SpecificationGalaxy A21i900 Omnia
Release date
  • 2020
  • April 8
  • 2008
  • June
Colors
  • Black
  • Modern Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 250 EUR
  • 160 EUR
Battery life Unknown
  • Stand by time- Up to 500 h (2G) / 450 h (3G) Talking time- Up to 5 h 50 min (2G) / 6 h 30 min (3G)
Body build
  • Glass front
  • plastic back
  • plastic frame
Unknown
Communication and Connectivity
Communication and Connectivity — specifications for Galaxy A21, i900 Omnia.
SpecificationGalaxy A21i900 Omnia
SIM card
  • Single SIM (Nano-SIM)Dual SIM (Nano-SIM
  • dual stand-by)
  • 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
Speed
  • HSPA 42.2/5.76 Mbps
  • LTE Cat4 150/50 Mbps
  • HSPA 7.2/0.384 Mbps
GPRS
  • Yes
  • Class 12
Edge
  • Yes
  • Class 12
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi Direct
  • hotspot
  • Wi-Fi 802.11b/g
GPS
  • Yes
  • with A-GPS
  • GLONASS
  • BDS
  • Yes
  • with A-GPS
USB
  • Yes
  • 2.0
Bluetooth
  • 5.0
  • A2DP
  • LE
  • 2.0
  • A2DP
Harmful irradiation Unknown
  • SAR - 0.39 W/kg (head) 0.52 W/kg (body) SAR EU - 0.67 W/kg (head)
Music and Audio
Music and Audio — specifications for Galaxy A21, i900 Omnia.
SpecificationGalaxy A21i900 Omnia
Radio
  • FM radio
  • Stereo FM radio
  • RDS
Others Unknown
  • Handwriting recognition
Other features
Other features — specifications for Galaxy A21, i900 Omnia.
SpecificationGalaxy A21i900 Omnia
Dop
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • proximity
  • compass - Fast charging 15W - Preliminary specifications
  • Sensors Accelerometer Pocket Office -MP3/AAC/AAC+/WMA/OGG/AMR player -DivX/XviD/WMV/MP4 player -TV-out -Voice memo Optical trackpad Also known as Samsung WiTu