Karbonn A21 vs LG K50

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: 1.76 in smaller diagonal

    A21:
    4.5 in
    K50:
    6.26 in
  • Rear camera layout

    A21:
    Single
    K50:
    Dual
  • Release year

    A21:
    2012
    K50:
    2019

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. K50

    Height:
    161.3 mm
    Width:
    77 mm
    Depth:
    8.7 mm
    Weight:
    170 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. K50

    Screen diagonal:
    6.26 in
    Aspect ratio (height:width):
    19:9
    Approximate rectangular screen area:
    97.8 cm²

K50 has approximately 69.7% 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, K50, compared at the same storage capacity.
StorageA21K50
32 GB Unknown 3 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. K50

NFC:
See details Yes (market/region dependent)
Headphone jack:
Yes
Memory card support:
See details microSD · up to 1 TB (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. K50

    3500 mAh

    +1700 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. K50

Everyday essentials
Everyday essentials — specifications for A21, K50.
SpecificationA21K50
Dimensions (HxWxD)
  • Х Х mm
  • 161.3 Х 77 Х 8.7 mm
Weight
  • 0 g
  • 170 g
Technology
  • TFT
  • IPS LCD
Screen size
  • 4.5" inch
  • 6.26" inch
Screen resolution
  • 480 x 800 px
  • 720 x 1520 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 4 GB
  • 512 MB RAM
  • 32 GB
  • 3 GB RAM
Memory card support
  • microSD
  • up to 32 GB (dedicated slot)
  • microSD
  • up to 1 TB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1800 mAh
  • Removable Li-Ion
  • 3500 mAh
  • Non-removable Li-Po
Operating system OS
  • Android 4.0 (Ice Cream Sandwich)
  • Android 9.0 (Pie)
Chipset Unknown
  • Mediatek MT6762 Helio P22 (12 nm)
NFC Unknown
  • Yes (market/region dependent)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for A21, K50.
SpecificationA21K50
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 256K
  • 16M
Screen area
  • 57.6 cm2
  • 97.8 cm2
Screen format
  • 5:3 (height:width)
  • 19:9 (height:width)
Screen to body ratio Unknown
  • 78.8%
PPI /points per inch/
  • 207 PPI
  • 269 PPI
Camera and Video
Camera and Video — specifications for A21, K50.
SpecificationA21K50
Rear camera, main
  • 5 MP
  • Single
  • 13 MP
  • Dual
Camera specs
  • 5 MP
  • AF
  • 13 MP
  • f/2.2
  • 26mm (wide)
  • PDAF -2 MP
  • f/2.4 depth sensor
Functions
  • LED flash
  • LED flash
  • panorama
  • HDR
Video
  • Yes
  • 1080p@30fps
Front camera, selfie
  • 1.3 MP
  • Single
  • 13 MP
  • Single
Specifications
  • 1.3 MP
  • 13 MP
  • f/2.0
Performance

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

Performance — specifications for A21, K50.
SpecificationA21K50
Processor CPU
  • Dual-core 1.2 GHz
  • Octa-core 2.0 GHz Cortex-A53
Graphics processor GPU Unknown
  • PowerVR GE8320
Antutu 7 score * Unknown
  • 75122
General specs
General specs — specifications for A21, K50.
SpecificationA21K50
Release date
  • 2012
  • 2019
  • February
Colors
  • Pearl White
  • Aurora Black
  • Moroccan Blue
  • Platinum Gray
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 130 EUR
  • 180 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, K50.
SpecificationA21K50
SIM card
  • Dual SIM (Mini-SIM)
  • Single SIM (Nano-SIM)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 - SIM 1 & SIM 2 (dual-SIM model only) -3G - HSDPA 850 / 900 / 1900 / 2100 -4G - LTE
Speed
  • HSPA 7.2/0.384 Mbps
  • HSPA
  • LTE-A
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
  • DLNA
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
  • GLONASS
USB
  • microUSB 2.0
  • microUSB 2.0
  • USB On-The-Go
Bluetooth
  • 2.1
  • A2DP
  • 5.0
  • A2DP
  • LE
Harmful irradiation
  • SAR EU - 0.44 W/kg (head)
Unknown
Music and Audio
Music and Audio — specifications for A21, K50.
SpecificationA21K50
Radio
  • No
Unknown
Others Unknown
  • DTS: X Surround Sound -Active noise cancellation with dedicated mic
Other features
Other features — specifications for A21, K50.
SpecificationA21K50
Dop
  • Sensors Accelerometer
  • proximity
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • proximity - MIL-STD-810G compliant - Also known as LG K12 Max for Brazil