Karbonn A27 Retina vs Plum Trigger Pro

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

    Trigger Pro: 19.5 g lighter

    A27 Retina:
    126.5 g
    Trigger Pro:
    107 g
  • Width

    Trigger Pro: 5.5 mm narrower

    A27 Retina:
    66 mm
    Trigger Pro:
    60.5 mm
  • Screen diagonal

    Trigger Pro: 0.8 in smaller diagonal

    A27 Retina:
    4.3 in
    Trigger Pro:
    3.5 in
  • Depth

    A27 Retina: 3.1 mm thinner

    A27 Retina:
    9.1 mm
    Trigger Pro:
    12.2 mm
  • Height

    Trigger Pro: 18.8 mm shorter

    A27 Retina:
    133.6 mm
    Trigger Pro:
    114.8 mm
  • Release year

    A27 Retina:
    2013
    Trigger Pro:
    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. A27 Retina

    Height:
    133.6 mm +18.8 mm versus Trigger Pro
    Width:
    66 mm +5.5 mm versus Trigger Pro
    Depth:
    9.1 mm
  2. 2. Trigger Pro

    Height:
    114.8 mm
    Width:
    60.5 mm
    Depth:
    12.2 mm +3.1 mm versus A27 Retina

Weight

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

  1. 1. A27 Retina

    126.5 g

    +19.5 g versus Trigger Pro

  2. 2. Trigger Pro

    107 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. A27 Retina

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

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

A27 Retina has approximately 39.7% more rectangular screen area than Trigger Pro.

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

Trigger Pro: 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. A27 Retina

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

2. Trigger Pro

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

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

    +450 mAh versus Trigger Pro

  2. 2. Trigger Pro

    1350 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. A27 Retina2. Trigger Pro

Everyday essentials
Everyday essentials — specifications for A27 Retina, Trigger Pro.
SpecificationA27 RetinaTrigger Pro
Dimensions (HxWxD)
  • 133.6 Х 66 Х 9.1 mm
  • 114.8 Х 60.5 Х 12.2 mm
Weight
  • 126.5 g
  • 107 g
Technology
  • IPS LCD
  • IPS LCD
Screen size
  • 4.3" inch
  • 3.5" 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
  • 4 GB
  • 512 MB RAM
Memory card support
  • microSD
  • up to 32 GB (dedicated slot)
  • microSD
  • up to 32 GB
Battery Capacity is not battery life. No endurance test is implied.
  • 1800 mAh
  • Li-Ion
  • 1350 mAh
  • Removable Li-Ion
Operating system OS
  • Android 4.1 (Jelly Bean)
  • Android 4.2 (Jelly Bean)
Chipset Unknown
  • Mediatek MT6572M (28 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for A27 Retina, Trigger Pro.
SpecificationA27 RetinaTrigger Pro
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors Unknown
  • 16M
Screen area
  • 51.0 cm2
  • 36.5 cm2
Screen format
  • 16:9 (height:width)
  • 3:2 (height:width)
Screen to body ratio
  • 57.8%
  • 52.5%
PPI /points per inch/
  • 256 PPI
  • 165 PPI
Camera and Video
Camera and Video — specifications for A27 Retina, Trigger Pro.
SpecificationA27 RetinaTrigger Pro
Rear camera, main
  • 8 MP
  • Single
  • 5 MP
  • Single
Camera specs
  • 8 MP
  • AF
  • 5 MP
  • AF
Functions
  • LED flash
  • Face detection
Video
  • Yes
  • 720p@30fps
Front camera, selfie
  • 2 MP
  • Single
  • 1.3 MP
  • Single
Specifications
  • 2 MP
  • 1.3 MP
Performance
Performance — specifications for A27 Retina, Trigger Pro.
SpecificationA27 RetinaTrigger Pro
Processor CPU
  • Dual-core 1.2 GHz
  • Dual-core 1.2 GHz Cortex-A7
Graphics processor GPU Unknown
  • Mali-400
General specs
General specs — specifications for A27 Retina, Trigger Pro.
SpecificationA27 RetinaTrigger Pro
Release date
  • 2013
  • March
  • 2014
  • May
Colors
  • Black
  • Black
  • White
  • Red
  • Blue
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 750 h (2G) / Up to 650 h (3G) Talking time- Up to 17 h (2G) / Up to 14 h (3G)
Communication and Connectivity
Communication and Connectivity — specifications for A27 Retina, Trigger Pro.
SpecificationA27 RetinaTrigger Pro
SIM card
  • Dual SIM (Mini-SIM)
  • Dual 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
Speed
  • HSPA 7.2/0.384 Mbps
  • HSPA 21.1/5.76 Mbps
GPRS
  • Yes
  • Class 12
Edge
  • Yes
  • Class 12
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi Direct
  • hotspot
  • Wi-Fi 802.11 b/g/n
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
USB
  • Proprietary
  • microUSB 2.0
Bluetooth
  • Yes
  • 4.0
  • A2DP
Harmful irradiation
  • SAR EU - 1.00 W/kg (head)
Unknown
Music and Audio
Music and Audio — specifications for A27 Retina, Trigger Pro.
SpecificationA27 RetinaTrigger Pro
Radio
  • FM radio
  • FM radio
Other features
Other features — specifications for A27 Retina, Trigger Pro.
SpecificationA27 RetinaTrigger Pro
Dop
  • Sensors Accelerometer
  • Sensors Accelerometer
  • gyro
  • proximity - Also known as Plum Z320