Karbonn A27 Retina vs Philips W820

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.

  • Weight

    A27 Retina: 16.5 g lighter

    A27 Retina:
    126.5 g
    W820:
    143 g
  • Width

    W820: 8.3 mm narrower

    A27 Retina:
    66 mm
    W820:
    57.7 mm
  • Screen diagonal

    W820: 1.1 in smaller diagonal

    A27 Retina:
    4.3 in
    W820:
    3.2 in
  • Depth

    A27 Retina: 5.7 mm thinner

    A27 Retina:
    9.1 mm
    W820:
    14.8 mm
  • Height

    W820: 19 mm shorter

    A27 Retina:
    133.6 mm
    W820:
    114.6 mm
  • Release year

    A27 Retina:
    2013
    W820:
    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. A27 Retina

    Height:
    133.6 mm +19 mm versus W820
    Width:
    66 mm +8.3 mm versus W820
    Depth:
    9.1 mm
  2. 2. W820

    Height:
    114.6 mm
    Width:
    57.7 mm
    Depth:
    14.8 mm +5.7 mm versus A27 Retina

Weight

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

  1. 1. A27 Retina

    126.5 g

  2. 2. W820

    143 g

    +16.5 g versus A27 Retina

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. A27 Retina

    Screen diagonal:
    4.3 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    51 cm²
  2. 2. W820

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

A27 Retina has approximately 67.2% more rectangular screen area than W820.

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.

A27 Retina: Original memory entry

4 GB · 512 MB RAM

W820: Original memory entry

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. A27 Retina

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

2. W820

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. A27 Retina

    1800 mAh

  2. 2. W820

    2100 mAh

    +300 mAh versus A27 Retina

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. A27 Retina2. W820

Everyday essentials
Everyday essentials — specifications for A27 Retina, W820.
SpecificationA27 RetinaW820
Dimensions (HxWxD)
  • 133.6 Х 66 Х 9.1 mm
  • 114.6 Х 57.7 Х 14.8 mm
Weight
  • 126.5 g
  • 143 g
Technology
  • IPS LCD
  • TFT
Screen size
  • 4.3" inch
  • 3.2" inch
Screen resolution
  • 540 x 960 px
  • 320 x 480 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 4 GB
  • 512 MB RAM
  • 512 MB
Memory card support
  • microSD
  • up to 32 GB (dedicated slot)
  • microSD
  • up to 32 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1800 mAh
  • Li-Ion
  • 2100 mAh
  • Removable Li-Ion
Operating system OS
  • Android 4.1 (Jelly Bean)
  • Android 2.3 (Gingerbread)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for A27 Retina, W820.
SpecificationA27 RetinaW820
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Screen area
  • 51.0 cm2
  • 30.5 cm2
Screen format
  • 16:9 (height:width)
  • 3:2 (height:width)
Screen to body ratio
  • 57.8%
  • 46.1%
PPI /points per inch/
  • 256 PPI
  • 180 PPI
Camera and Video
Camera and Video — specifications for A27 Retina, W820.
SpecificationA27 RetinaW820
Rear camera, main
  • 8 MP
  • Single
  • 5 MP
  • Single
Camera specs
  • 8 MP
  • AF
  • 5 MP
  • AF
Functions
  • LED flash
  • LED flash
Video
  • Yes
  • 176x144@15fps
Front camera, selfie
  • 2 MP
  • Single
  • 0.3 MP
  • Single
Specifications
  • 2 MP
Unknown
Performance
Performance — specifications for A27 Retina, W820.
SpecificationA27 RetinaW820
Processor CPU
  • Dual-core 1.2 GHz
Unknown
General specs
General specs — specifications for A27 Retina, W820.
SpecificationA27 RetinaW820
Release date
  • 2013
  • March
  • 2012
  • March
Colors
  • Black
  • Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 160 EUR
Unknown
Battery life
  • Stand by time- Up to 180 h Talking time- Up to 4 h
  • Stand by time- Up to 600 h Talking time- Up to 8 h
Communication and Connectivity
Communication and Connectivity — specifications for A27 Retina, W820.
SpecificationA27 RetinaW820
SIM card
  • Dual SIM (Mini-SIM)
  • Mini-SIM
Network
  • Show all network frequencies: -2G - GSM 900 / 1800 / 1900 - SIM 1 & SIM 2
  • Show all network frequencies: -2G - GSM 900 / 1800 / 1900
Speed
  • HSPA 7.2/0.384 Mbps
  • HSPA 7.2/0.384 Mbps
GPRS
  • Yes
  • Class 12
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi Direct
  • hotspot
  • Wi-Fi 802.11 b/g
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
USB
  • Proprietary
  • 2.0
Bluetooth
  • Yes
  • 2.0
Harmful irradiation
  • SAR EU - 1.00 W/kg (head)
Unknown
Music and Audio
Music and Audio — specifications for A27 Retina, W820.
SpecificationA27 RetinaW820
Radio
  • FM radio
  • FM radio
Other features
Other features — specifications for A27 Retina, W820.
SpecificationA27 RetinaW820
Dop
  • Sensors Accelerometer
  • Sensors Accelerometer
  • proximity
  • compass - MP3/WAV/WMA/AAC+ player -MP4/H.263 player -Document viewer -Photo viewer/editor -Organizer -Voice memo/dial -Predictive text input