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HTC U Play vs Karbonn A4

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.

  • Weight

    A4: 70 g lighter

    U Play:
    145 g
    A4:
    75 g
  • Width

    A4: 6.9 mm narrower

    U Play:
    72.9 mm
    A4:
    66 mm
  • Screen diagonal

    A4: 1.2 in smaller diagonal

    U Play:
    5.2 in
    A4:
    4 in
  • Depth

    U Play: 1.5 mm thinner

    U Play:
    8 mm
    A4:
    9.5 mm
  • Height

    A4: 21.2 mm shorter

    U Play:
    146 mm
    A4:
    124.8 mm
  • Release year

    U Play:
    2017
    A4:
    2013

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. U Play

    Height:
    146 mm +21.2 mm versus A4
    Width:
    72.9 mm +6.9 mm versus A4
    Depth:
    8 mm
  2. 2. A4

    Height:
    124.8 mm
    Width:
    66 mm
    Depth:
    9.5 mm +1.5 mm versus U Play

Weight

Bars start at zero and share a scale within this chart.

  1. 1. U Play

    145 g

    +70 g versus A4

  2. 2. A4

    75 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. U Play

    Screen diagonal:
    5.2 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    74.5 cm²
  2. 2. A4

    Screen diagonal:
    4 in
    Aspect ratio (height:width):
    3:2
    Approximate rectangular screen area:
    47.6 cm²

U Play has approximately 56.5% more rectangular screen area than A4.

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.

U Play: Original memory entry

64 GB · 4 GB RAM 32 GB · 3 RAM

A4: Original memory entry

256 MB · 512 MB

Practical features

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

1. U Play

NFC:
Yes
Headphone jack:
No
Memory card support:
See details microSD · up to 256 GB (uses SIM 2 slot)

2. A4

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. U Play

    2500 mAh

    +1100 mAh versus A4

  2. 2. A4

    1400 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. U Play2. A4

Everyday essentials
Everyday essentials — specifications for U Play, A4.
SpecificationU PlayA4
Dimensions (HxWxD)
  • 146 Х 72.9 Х 8 mm
  • 124.8 Х 66 Х 9.5 mm
Weight
  • 145 g
  • 75 g
Technology
  • Super LCD
  • TFT
Screen size
  • 5.2" inch
  • 4" inch
Screen resolution
  • 1080 x 1920 px
  • 320 x 480 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 64 GB
  • 4 GB RAM 32 GB
  • 3 RAM
  • 256 MB
  • 512 MB
Memory card support
  • microSD
  • up to 256 GB (uses SIM 2 slot)
  • microSD
  • up to 32 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 2500 mAh
  • Non-removable Li-Ion
  • 1400 mAh
  • Li-Ion
Operating system OS
  • Android 6.0 (Marshmallow)
  • Android 2.3.6 (Gingerbread)
Chipset
  • Mediatek MT6755 Helio P10 (28 nm)
Unknown
NFC
  • Yes
Unknown
Headphone jack
  • No
  • Yes
Display
Display — specifications for U Play, A4.
SpecificationU PlayA4
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 256K
Screen area
  • 73.2 cm2
  • 47.6 cm2
Screen format
  • 16:9 (height:width)
  • 3:2 (height:width)
Screen to body ratio
  • 68.7%
  • 57.8%
PPI /points per inch/
  • 428 PPI
  • 144 PPI
Screen protection
  • Corning Gorilla Glass (unspecified version)
Unknown
Camera and Video
Camera and Video — specifications for U Play, A4.
SpecificationU PlayA4
Rear camera, main
  • 16 MP
  • Single
  • 3.15 MP
  • Single
Camera specs
  • 16 MP
  • f/2.0
  • 28mm (wide)
  • 1.0µm
  • OIS
  • PDAF
  • 3.15 MP
Functions
  • Auto-HDR
Unknown
Video
  • 1080p@30fps
  • Yes
Front camera, selfie
  • 16 MP
  • Single
  • 0.3 MP
  • Single
Specifications
  • 16 MP
  • f/2.0
  • 27mm (wide)
  • 1/3.1''
  • 1.0µm
Unknown
Performance

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

Performance — specifications for U Play, A4.
SpecificationU PlayA4
Processor CPU
  • Octa-core (4x2.0 GHz Cortex-A53 & 4x1.1 GHz Cortex-A53)
Unknown
Graphics processor GPU
  • Mali-T860MP2
Unknown
Antutu 7 score *
  • 49782
Unknown
GeekBench 4 Single Core *
  • 740
Unknown
GeekBench 4 Multi-Core *
  • 2755
Unknown
GeekBench 4 RenderScript *
  • 1977
Unknown
General specs
General specs — specifications for U Play, A4.
SpecificationU PlayA4
Release date
  • 2017
  • January
  • 2013
  • March
Colors
  • Brilliant Black
  • Cosmetic Pink
  • Ice White
  • Sapphire Blue
  • white/black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 150 EUR
  • 70 EUR
Battery life
  • Stand by time- Up to 427 h (3G) Talking time- Up to 15 h (3G)
  • Stand by time- Up to 250 h Talking time- Up to 4 h 20 min
Body build
  • plastic body
Unknown
Communication and Connectivity
Communication and Connectivity — specifications for U Play, A4.
SpecificationU PlayA4
SIM card
  • Hybrid 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)
  • 3(1800)
  • 5(850)
  • 7(2600)
  • 8(900)
  • 20(800)
  • 28(700)
  • 38(2600)
  • 40(2300)
  • Show all network frequencies: -2G - GSM 850 / 1900 - SIM 1 & SIM 2 GSM 900 / 1800 - SIM 1 & SIM 2
Speed
  • HSPA 42.2/5.76 Mbps
  • LTE-A (2CA) Cat6 300/50 Mbps
  • HSPA
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • Wi-Fi Direct
  • DLNA
  • hotspot
  • Wi-Fi 802.11 b/g/n
  • hotspot
GPS
  • Yes
  • with A-GPS
  • GLONASS
  • No
USB
  • 2.0
  • Type-C 1.0 reversible connector
  • Proprietary
Bluetooth
  • 4.2
  • A2DP
  • LE
  • Yes
Music and Audio
Music and Audio — specifications for U Play, A4.
SpecificationU PlayA4
Radio
  • No
  • FM radio
Others
  • Active noise cancellation with dedicated mic
Unknown
Other features
Other features — specifications for U Play, A4.
SpecificationU PlayA4
Dop
  • Sensors Fingerprint (front-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass - Fast battery charging - Also known as HTC Alpine
  • Sensors Accelerometer