Karbonn A21 vs Sharp Aquos D10

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: 1.49 in smaller diagonal

    A21:
    4.5 in
    Aquos D10:
    5.99 in
  • Rear camera layout

    A21:
    Single
    Aquos D10:
    Dual
  • Release year

    A21:
    2012
    Aquos D10:
    2018

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. A21

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

    Unavailable dimensions are omitted from the drawing.

  2. 2. Aquos D10

    Height:
    148.2 mm
    Width:
    74.2 mm
    Depth:
    8 mm
    Weight:
    165 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. A21

    Screen diagonal:
    4.5 in
    Aspect ratio (height:width):
    5:3
    Approximate rectangular screen area:
    57.6 cm²
  2. 2. Aquos D10

    Screen diagonal:
    5.99 in
    Aspect ratio (height:width):
    18:9
    Approximate rectangular screen area:
    92.6 cm²

Aquos D10 has approximately 60.6% 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.

No unambiguous storage/RAM pairings are recorded. See the original specifications below.

A21: Original memory entry

4 GB · 512 MB RAM

Aquos D10: Original memory entry

64 GB · 512GB 4GB

Practical features

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

1. A21

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

2. Aquos D10

NFC:
Yes
Headphone jack:
Yes
Memory card support:
See details microSD · up to 256 GB (uses SIM 2 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. A21

    1800 mAh

  2. 2. Aquos D10

    2900 mAh

    +1100 mAh versus A21

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. A212. Aquos D10

Everyday essentials
Everyday essentials — specifications for A21, Aquos D10.
SpecificationA21Aquos D10
Dimensions (HxWxD)
  • Х Х mm
  • 148.2 Х 74.2 Х 8 mm
Weight
  • 0 g
  • 165 g
Technology
  • TFT
  • IPS LCD
Screen size
  • 4.5" inch
  • 5.99" inch
Screen resolution
  • 480 x 800 px
  • 1080 x 2160 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 4 GB
  • 512 MB RAM
  • 64 GB
  • 512GB 4GB
Memory card support
  • microSD
  • up to 32 GB (dedicated slot)
  • microSD
  • up to 256 GB (uses SIM 2 slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1800 mAh
  • Removable Li-Ion
  • 2900 mAh
  • Non-removable Li-Ion
Operating system OS
  • Android 4.0 (Ice Cream Sandwich)
  • Android 8.0 (Oreo); Sharp UI
Chipset Unknown
  • Qualcomm SDM630 Snapdragon 630 (14 nm)
NFC Unknown
  • Yes
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for A21, Aquos D10.
SpecificationA21Aquos D10
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 256K
  • 16M
Screen area
  • 57.6 cm2
  • 92.6 cm2
Screen format
  • 5:3 (height:width)
  • 18:9 (height:width)
Screen to body ratio Unknown
  • 84.2%
PPI /points per inch/
  • 207 PPI
  • 403 PPI
Screen protection Unknown
  • Corning Gorilla Glass 3
Camera and Video
Camera and Video — specifications for A21, Aquos D10.
SpecificationA21Aquos D10
Rear camera, main
  • 5 MP
  • Single
  • 12 MP
  • Dual
Camera specs
  • 5 MP
  • AF
  • 12 MP
  • f/1.8
  • 1/2.55''
  • 1.4µm
  • PDAF -13 MP
  • 1/3.4''
  • 1.0µm
Functions
  • LED flash
  • Dual-LED dual-tone flash
  • panorama
  • HDR
Video
  • Yes
  • 1080p@30fps
Front camera, selfie
  • 1.3 MP
  • Single
  • 16 MP
  • Single
Specifications
  • 1.3 MP
  • 16 MP
Performance

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

Performance — specifications for A21, Aquos D10.
SpecificationA21Aquos D10
Processor CPU
  • Dual-core 1.2 GHz
  • Octa-core (4x2.6 GHz Cortex-A53 & 4x1.8 GHz Cortex A53)
Graphics processor GPU Unknown
  • Adreno 508
Antutu 7 score * Unknown
  • 71225
General specs
General specs — specifications for A21, Aquos D10.
SpecificationA21Aquos D10
Release date
  • 2012
  • 2018
  • August
Colors
  • Pearl White
  • Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 130 EUR
  • 400 EUR
Battery life
  • Stand by time- Up to 200 h Talking time- Up to 5 h
Unknown
Communication and Connectivity
Communication and Connectivity — specifications for A21, Aquos D10.
SpecificationA21Aquos D10
SIM card
  • Dual SIM (Mini-SIM)
  • Hybrid Dual SIM (Nano-SIM
  • dual stand-by)
Network
  • Show all network frequencies: -2G - GSM 900 / 1800 / 1900 - SIM 1 & SIM 2
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 -3G - HSDPA 850 / 900 / 1900 / 2100 -4G - LTE band 1(2100)
  • 3(1800)
  • 5(850)
  • 7(2600)
  • 8(900)
  • 20(800)
Speed
  • HSPA 7.2/0.384 Mbps
  • HSPA 14.4/5.76 Mbps
  • LTE Cat4 150/50 Mbps
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • 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
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
  • GLONASS
  • GALILEO
USB
  • microUSB 2.0
  • 2.0
  • Type-C 1.0 reversible connector
  • USB On-The-Go
Bluetooth
  • 2.1
  • A2DP
  • 4.0
  • A2DP
  • LE
Harmful irradiation
  • SAR EU - 0.44 W/kg (head)
Unknown
Music and Audio
Music and Audio — specifications for A21, Aquos D10.
SpecificationA21Aquos D10
Radio
  • No
  • FM radio
Others Unknown
  • Active noise cancellation with dedicated mic
Other features
Other features — specifications for A21, Aquos D10.
SpecificationA21Aquos D10
Dop
  • Sensors Accelerometer
  • proximity
  • Sensors Fingerprint (front-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass