Karbonn A21 vs LG Volt

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

    A21:
    4.5 in
    Volt:
    4.7 in
  • Release year

    A21:
    2012
    Volt:
    2014

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. Volt

    Height:
    131.6 mm
    Width:
    66 mm
    Depth:
    10.4 mm
    Weight:
    136.1 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. Volt

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

Volt 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 A21, Volt, compared at the same storage capacity.
StorageA21Volt
8 GB Unknown 1 GB RAM
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. A21

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

2. Volt

NFC:
Yes
Headphone jack:
Yes
Memory card support:
See details microSD · up to 64 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. A21

    1800 mAh

  2. 2. Volt

    3000 mAh

    +1200 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. Volt

Everyday essentials
Everyday essentials — specifications for A21, Volt.
SpecificationA21Volt
Dimensions (HxWxD)
  • Х Х mm
  • 131.6 Х 66 Х 10.4 mm
Weight
  • 0 g
  • 136.1 g
Technology
  • TFT
  • IPS LCD
Screen size
  • 4.5" inch
  • 4.7" inch
Screen resolution
  • 480 x 800 px
  • 540 x 960 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 4 GB
  • 512 MB RAM
  • 8 GB
  • 1 GB RAM
Memory card support
  • microSD
  • up to 32 GB (dedicated slot)
  • microSD
  • up to 64 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1800 mAh
  • Removable Li-Ion
  • 3000 mAh
  • Removable Li-Ion
Operating system OS
  • Android 4.0 (Ice Cream Sandwich)
  • Android 4.4.2 (KitKat)
Chipset Unknown
  • Qualcomm MSM8926 Snapdragon 400 (28 nm)
NFC Unknown
  • Yes
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for A21, Volt.
SpecificationA21Volt
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 256K
  • 16M
Screen area
  • 57.6 cm2
  • 60.9 cm2
Screen format
  • 5:3 (height:width)
  • 16:9 (height:width)
Screen to body ratio Unknown
  • 70.1%
PPI /points per inch/
  • 207 PPI
  • 234 PPI
Screen protection Unknown
  • Corning Gorilla Glass 2
Camera and Video
Camera and Video — specifications for A21, Volt.
SpecificationA21Volt
Rear camera, main
  • 5 MP
  • Single
  • 8 MP
  • Single
Camera specs
  • 5 MP
  • AF
  • 8 MP
  • AF
Functions
  • LED flash
  • LED flash
  • panorama
  • HDR
Video
  • Yes
  • 1080p@30fps
Front camera, selfie
  • 1.3 MP
  • Single
  • 1.3 MP
  • Single
Specifications
  • 1.3 MP
  • 1.3 MP
Performance
Performance — specifications for A21, Volt.
SpecificationA21Volt
Processor CPU
  • Dual-core 1.2 GHz
  • Quad-core 1.2 GHz Cortex-A7
Graphics processor GPU Unknown
  • Adreno 305
General specs
General specs — specifications for A21, Volt.
SpecificationA21Volt
Release date
  • 2012
  • 2014
  • May
Colors
  • Pearl White
  • Blue (Boost Mobile)
  • White (Virgin Mobile)
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 130 EUR
  • 130 EUR
Battery life
  • Stand by time- Up to 200 h Talking time- Up to 5 h
  • Talking time- Up to 24 h (3G)
Communication and Connectivity
Communication and Connectivity — specifications for A21, Volt.
SpecificationA21Volt
SIM card
  • Dual SIM (Mini-SIM)
  • Micro-SIM
Network
  • Show all network frequencies: -2G - GSM 900 / 1800 / 1900 - SIM 1 & SIM 2
  • Show all network frequencies: -4G - LTE band 25(1900)
  • 26(850)
  • 41(2500)
Speed
  • HSPA 7.2/0.384 Mbps
  • CDMA
  • LTE
GPRS
  • Yes
  • No
Edge
  • Yes
  • No
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi Direct
  • DLNA
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
  • GLONASS
USB
  • microUSB 2.0
  • microUSB 2.0
Bluetooth
  • 2.1
  • A2DP
  • 4.0
  • A2DP
Harmful irradiation
  • SAR EU - 0.44 W/kg (head)
Unknown
Music and Audio
Music and Audio — specifications for A21, Volt.
SpecificationA21Volt
Radio
  • No
  • FM radio
  • RDS
Other features
Other features — specifications for A21, Volt.
SpecificationA21Volt
Dop
  • Sensors Accelerometer
  • proximity
  • Sensors Accelerometer
  • proximity
  • compass
  • Infrared port - Versions: LG Volt LS740
  • LG Volt 4G LTE for Virgin Mobile LG LS740 Boost Mobile for Boost Mobile