HTC One XC vs Karbonn A21

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

    A21: 0.2 in smaller diagonal

    One XC:
    4.7 in
    A21:
    4.5 in

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. One XC

    Height:
    134.8 mm
    Width:
    69 mm
    Depth:
    9.5 mm
    Weight:
    138.5 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. One XC

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

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

One XC has approximately 5.7% 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 One XC, A21, compared at the same storage capacity.
StorageOne XCA21
16 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. One XC

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
No

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. One XC

    2000 mAh

    +200 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. One XC2. A21

Everyday essentials
Everyday essentials — specifications for One XC, A21.
SpecificationOne XCA21
Dimensions (HxWxD)
  • 134.8 Х 69 Х 9.5 mm
  • Х Х mm
Weight
  • 138.5 g
  • 0 g
Technology Unknown
  • TFT
Screen size
  • 4.7" 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.
  • 16 GB
  • 1 GB RAM
  • 4 GB
  • 512 MB RAM
Memory card support
  • No
  • microSD
  • up to 32 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 2000 mAh
  • Removable Li-Ion
  • 1800 mAh
  • Removable Li-Ion
Operating system OS
  • Android 4.0 (Ice Cream Sandwich); Sense UI
  • Android 4.0 (Ice Cream Sandwich)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for One XC, A21.
SpecificationOne XCA21
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 256K
Screen area
  • 60.9 cm2
  • 57.6 cm2
Screen format
  • 16:9 (height:width)
  • 5:3 (height:width)
Screen to body ratio
  • 65.5%
Unknown
PPI /points per inch/
  • 312 PPI
  • 207 PPI
Camera and Video
Camera and Video — specifications for One XC, A21.
SpecificationOne XCA21
Rear camera, main
  • 8 MP
  • Single
  • 5 MP
  • Single
Camera specs
  • 8 MP
  • AF
  • 5 MP
  • AF
Functions
  • LED flash
  • LED flash
Video
  • 720p
  • Yes
Front camera, selfie
  • 1.3 MP
  • Single
  • 1.3 MP
  • Single
Specifications
  • 1.3 MP
  • 1.3 MP
Performance
Performance — specifications for One XC, A21.
SpecificationOne XCA21
Processor CPU
  • Dual-core 1.5 GHz
  • Dual-core 1.2 GHz
General specs
General specs — specifications for One XC, A21.
SpecificationOne XCA21
Release date
  • 2012
  • June
  • 2012
Colors
  • Black
  • Pearl White
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 200 EUR
  • 130 EUR
Battery life Unknown
  • Stand by time- Up to 200 h Talking time- Up to 5 h
Communication and Connectivity
Communication and Connectivity — specifications for One XC, A21.
SpecificationOne XCA21
SIM card
  • Mini-SIM
  • Dual SIM (Mini-SIM)
Network
  • Show all network frequencies: -2G - CDMA 800 / 1900 GSM 900 / 1800 / 1900
  • Show all network frequencies: -2G - GSM 900 / 1800 / 1900 - SIM 1 & SIM 2
Speed
  • EV-DO Rev.A 3.1 Mbps
  • HSPA 7.2/0.384 Mbps
GPRS Unknown
  • Yes
Edge Unknown
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • hotspot
  • Wi-Fi 802.11 b/g/n
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
USB
  • microUSB 2.0 (MHL TV-out)
  • microUSB 2.0
Bluetooth
  • Yes
  • 2.1
  • A2DP
Harmful irradiation Unknown
  • SAR EU - 0.44 W/kg (head)
Music and Audio
Music and Audio — specifications for One XC, A21.
SpecificationOne XCA21
Radio
  • FM radio
  • No
Others
  • Beats Audio -Active noise cancellation with dedicated mic
Unknown
Other features
Other features — specifications for One XC, A21.
SpecificationOne XCA21
Dop
  • Sensors Accelerometer
  • gyro
  • proximity
  • compass - MP4/H.264/WMV player -MP3/eAAC+/WMA/WAV player -Document viewer -Voice memo/dial/commands -Predictive text input - For China
  • Sensors Accelerometer
  • proximity