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HTC U19e 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: 1.5 in smaller diagonal

    U19e:
    6 in
    A21:
    4.5 in
  • Rear camera layout

    U19e:
    Dual
    A21:
    Single
  • Release year

    U19e:
    2019
    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. U19e

    Height:
    156.6 mm
    Width:
    75.9 mm
    Depth:
    8 mm
    Weight:
    180 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. U19e

    Screen diagonal:
    6 in
    Aspect ratio (height:width):
    18:9
    Approximate rectangular screen area:
    92.9 cm²
  2. 2. A21

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

U19e has approximately 61.2% 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 U19e, A21, compared at the same storage capacity.
StorageU19eA21
128 GB 6 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. U19e

NFC:
Yes
Headphone jack:
Yes
Memory card support:
See details microSD · up to 1 TB (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. U19e

    3930 mAh

    +2130 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. U19e2. A21

Everyday essentials
Everyday essentials — specifications for U19e, A21.
SpecificationU19eA21
Dimensions (HxWxD)
  • 156.6 Х 75.9 Х 8 mm
  • Х Х mm
Weight
  • 180 g
  • 0 g
Technology
  • OLED
  • TFT
Screen size
  • 6" inch
  • 4.5" inch
Screen resolution
  • 1080 x 2160 px
  • 480 x 800 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 128 GB
  • 6 GB RAM
  • 4 GB
  • 512 MB RAM
Memory card support
  • microSD
  • up to 1 TB (dedicated slot)
  • microSD
  • up to 32 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 3930 mAh
  • Non-removable Li-Ion
  • 1800 mAh
  • Removable Li-Ion
Operating system OS
  • Android 9.0 (Pie); HTC Sense
  • Android 4.0 (Ice Cream Sandwich)
Chipset
  • Qualcomm SDM710 Snapdragon 710 (10 nm)
Unknown
NFC
  • Yes
Unknown
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for U19e, A21.
SpecificationU19eA21
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 256K
Screen area
  • 92.9 cm2
  • 57.6 cm2
Screen format
  • 18:9 (height:width)
  • 5:3 (height:width)
Screen to body ratio
  • 78.2%
Unknown
PPI /points per inch/
  • 402 PPI
  • 207 PPI
Screen protection
  • Corning Gorilla Glass (unspecified)
Unknown
Camera and Video
Camera and Video — specifications for U19e, A21.
SpecificationU19eA21
Rear camera, main
  • 12 MP
  • Dual
  • 5 MP
  • Single
Camera specs
  • 12 MP
  • f/1.8
  • 26mm (wide)
  • PDAF -20 MP
  • f/2.6
  • 52mm (telephoto)
  • 2x optical zoom
  • 5 MP
  • AF
Functions
  • Auto HDR
  • LED flash
Video
  • 1080p@30fps
  • Yes
Front camera, selfie
  • 24 MP
  • Dual
  • 1.3 MP
  • Single
Specifications
  • 24 MP
  • f/2.0 2 MP
  • f/2.2 (depth sensor)
  • 1.3 MP
Performance

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

Performance — specifications for U19e, A21.
SpecificationU19eA21
Processor CPU
  • Octa-core (2x2.2 GHz Kryo 360 Gold & 6x1.7 GHz Kryo 360 Silver)
  • Dual-core 1.2 GHz
Graphics processor GPU
  • Adreno 616
Unknown
Antutu 7 score *
  • 178321
Unknown
General specs
General specs — specifications for U19e, A21.
SpecificationU19eA21
Release date
  • 2019
  • June
  • 2012
Colors
  • Extraordinary Purple
  • Modest Green
  • Pearl White
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 420 EUR
  • 130 EUR
Battery life Unknown
  • Stand by time- Up to 200 h Talking time- Up to 5 h
Body build
  • Front/back glass
  • aluminum frame
Unknown
Communication and Connectivity
Communication and Connectivity — specifications for U19e, A21.
SpecificationU19eA21
SIM card
  • Dual SIM (Nano-SIM
  • dual stand-by)
  • Dual SIM (Mini-SIM)
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 850 / 900 / 1900 / 2100 -4G - LTE band 1(2100)
  • 2(1900)
  • 3(1800)
  • 5(850)
  • 7(2600)
  • 8(900)
  • 20(800)
  • 28(700)
  • 38(2600)
  • 39(1900)
  • 40(2300)
  • 41(2500)
  • Show all network frequencies: -2G - GSM 900 / 1800 / 1900 - SIM 1 & SIM 2
Speed
  • HSPA 42.2/5.76 Mbps
  • LTE-A (3CA) Cat15 800/150 Mbps
  • HSPA 7.2/0.384 Mbps
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • Wi-Fi Direct
  • hotspot
  • Wi-Fi 802.11 b/g/n
GPS
  • Yes
  • with A-GPS
  • GLONASS
  • Yes
  • with A-GPS
USB
  • 3.1
  • Type-C 1.0 reversible connector
  • microUSB 2.0
Bluetooth
  • 5.0
  • A2DP
  • LE
  • 2.1
  • A2DP
Harmful irradiation Unknown
  • SAR EU - 0.44 W/kg (head)
Music and Audio
Music and Audio — specifications for U19e, A21.
SpecificationU19eA21
Radio
  • To be confirmed
  • No
Others
  • HDR10
  • Active noise cancellation with dedicated mic
Unknown
Other features
Other features — specifications for U19e, A21.
SpecificationU19eA21
Dop
  • Sensors Iris scanner
  • fingerprint (rear-mounted)
  • accelerometer
  • proximity
  • compass - Fast battery charging 18W (Quick Charge 4.0)
  • Sensors Accelerometer
  • proximity