HTC Desire 620G dual sim vs Karbonn 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

    A21: 0.5 in smaller diagonal

    Desire 620G dual sim:
    5 in
    A21:
    4.5 in
  • Release year

    Desire 620G dual sim:
    2014
    A21:
    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. Desire 620G dual sim

    Height:
    150.1 mm
    Width:
    72.7 mm
    Depth:
    9.6 mm
    Weight:
    160 g
  2. 2. 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. Desire 620G dual sim

    Screen diagonal:
    5 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    68.9 cm²
  2. 2. A21

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

Desire 620G dual sim has approximately 19.6% more rectangular screen area than A21.

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 Desire 620G dual sim, A21, compared at the same storage capacity.
StorageDesire 620G dual simA21
8 GB 1 GB RAM Unknown
A21: 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. Desire 620G dual sim

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

2. A21

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. Desire 620G dual sim

    2100 mAh

    +300 mAh versus A21

  2. 2. A21

    1800 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. Desire 620G dual sim2. A21

Everyday essentials
Everyday essentials — specifications for Desire 620G dual sim, A21.
SpecificationDesire 620G dual simA21
Dimensions (HxWxD)
  • 150.1 Х 72.7 Х 9.6 mm
  • Х Х mm
Weight
  • 160 g
  • 0 g
Technology
  • Super LCD
  • TFT
Screen size
  • 5" inch
  • 4.5" inch
Screen resolution
  • 720 x 1280 px
  • 480 x 800 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 8 GB
  • 1 GB RAM
  • 4 GB
  • 512 MB RAM
Memory card support
  • microSD
  • up to 32 GB (dedicated slot)
  • microSD
  • up to 32 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 2100 mAh
  • Removable Li-Po
  • 1800 mAh
  • Removable Li-Ion
Operating system OS
  • Android 4.4.4 (KitKat); Sense UI
  • Android 4.0 (Ice Cream Sandwich)
Chipset
  • Mediatek MT6592 (28 nm)
Unknown
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Desire 620G dual sim, A21.
SpecificationDesire 620G dual simA21
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 256K
Screen area
  • 68.9 cm2
  • 57.6 cm2
Screen format
  • 16:9 (height:width)
  • 5:3 (height:width)
Screen to body ratio
  • 63.2%
Unknown
PPI /points per inch/
  • 294 PPI
  • 207 PPI
Camera and Video
Camera and Video — specifications for Desire 620G dual sim, A21.
SpecificationDesire 620G dual simA21
Rear camera, main
  • 8 MP
  • Single
  • 5 MP
  • Single
Camera specs
  • 8 MP
  • AF
  • f/2.4
  • 5 MP
  • AF
Functions
  • LED flash
  • panorama
  • LED flash
Video
  • 1080p@30fps
  • Yes
Front camera, selfie
  • 5 MP
  • Single
  • 1.3 MP
  • Single
Specifications
  • 5 MP
  • 1.3 MP
Performance

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

Performance — specifications for Desire 620G dual sim, A21.
SpecificationDesire 620G dual simA21
Processor CPU
  • Octa-core 1.7 GHz Cortex-A7
  • Dual-core 1.2 GHz
Graphics processor GPU
  • Mali-450MP4
Unknown
GeekBench 4 Single Core *
  • 413
Unknown
GeekBench 4 Multi-Core *
  • 2125
Unknown
General specs
General specs — specifications for Desire 620G dual sim, A21.
SpecificationDesire 620G dual simA21
Release date
  • 2014
  • December
  • 2012
Colors
  • Marble white
  • Milkyway Gray
  • Saffron Gray
  • Santorini White
  • Tangerine White
  • Tuxedo Gray
  • Pearl White
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 190 EUR
  • 130 EUR
Battery life
  • Stand by time- Up to 525 h (3G) Talking time- Up to 19 h (3G)
  • Stand by time- Up to 200 h Talking time- Up to 5 h
Communication and Connectivity
Communication and Connectivity — specifications for Desire 620G dual sim, A21.
SpecificationDesire 620G dual simA21
SIM card
  • Dual SIM (Micro-SIM
  • dual stand-by)
  • Dual SIM (Mini-SIM)
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
  • Show all network frequencies: -2G - GSM 900 / 1800 / 1900 - SIM 1 & SIM 2
Speed
  • HSPA 21.1/5.76 Mbps
  • HSPA 7.2/0.384 Mbps
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • hotspot
  • Wi-Fi 802.11 b/g/n
GPS
  • Yes
  • with A-GPS
  • GLONASS
  • Yes
  • with A-GPS
USB
  • microUSB 2.0
  • microUSB 2.0
Bluetooth
  • 4.0
  • A2DP
  • aptX
  • 2.1
  • A2DP
Harmful irradiation Unknown
  • SAR EU - 0.44 W/kg (head)
Music and Audio
Music and Audio — specifications for Desire 620G dual sim, A21.
SpecificationDesire 620G dual simA21
Radio
  • FM radio
  • No
Others
  • Active noise cancellation with dedicated mic
Unknown
Other features
Other features — specifications for Desire 620G dual sim, A21.
SpecificationDesire 620G dual simA21
Dop
  • Sensors Accelerometer
  • proximity
  • Sensors Accelerometer
  • proximity