Karbonn A27 Retina vs ZTE Boost MAX+

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: 68.3 g lighter

    A27 Retina:
    126.5 g
    Boost MAX+:
    194.8 g
  • Width

    A27 Retina: 16.6 mm narrower

    A27 Retina:
    66 mm
    Boost MAX+:
    82.6 mm
  • Screen diagonal

    A27 Retina: 1.4 in smaller diagonal

    A27 Retina:
    4.3 in
    Boost MAX+:
    5.7 in
  • Depth

    A27 Retina: 1.1 mm thinner

    A27 Retina:
    9.1 mm
    Boost MAX+:
    10.2 mm
  • Height

    A27 Retina: 31.5 mm shorter

    A27 Retina:
    133.6 mm
    Boost MAX+:
    165.1 mm
  • Release year

    A27 Retina:
    2013
    Boost MAX+:
    2015

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
    Width:
    66 mm
    Depth:
    9.1 mm
  2. 2. Boost MAX+

    Height:
    165.1 mm +31.5 mm versus A27 Retina
    Width:
    82.6 mm +16.6 mm versus A27 Retina
    Depth:
    10.2 mm +1.1 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. Boost MAX+

    194.8 g

    +68.3 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. Boost MAX+

    Screen diagonal:
    5.7 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    89.6 cm²

Boost MAX+ has approximately 75.7% more rectangular screen area than A27 Retina.

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 A27 Retina, Boost MAX+, compared at the same storage capacity.
StorageA27 RetinaBoost MAX+
16 GB Unknown 2 GB RAM
A27 Retina: 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. Boost MAX+

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
No

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. Boost MAX+

    3400 mAh

    +1600 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. Boost MAX+

Everyday essentials
Everyday essentials — specifications for A27 Retina, Boost MAX+.
SpecificationA27 RetinaBoost MAX+
Dimensions (HxWxD)
  • 133.6 Х 66 Х 9.1 mm
  • 165.1 Х 82.6 Х 10.2 mm
Weight
  • 126.5 g
  • 194.8 g
Technology
  • IPS LCD
  • IPS LCD
Screen size
  • 4.3" inch
  • 5.7" inch
Screen resolution
  • 540 x 960 px
  • 720 x 1280 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 4 GB
  • 512 MB RAM
  • 16 GB
  • 2 GB RAM
Memory card support
  • microSD
  • up to 32 GB (dedicated slot)
  • No
Battery Capacity is not battery life. No endurance test is implied.
  • 1800 mAh
  • Li-Ion
  • 3400 mAh
  • Non-removable Li-Ion
Operating system OS
  • Android 4.1 (Jelly Bean)
  • Android 5.1 (Lollipop)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for A27 Retina, Boost MAX+.
SpecificationA27 RetinaBoost MAX+
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors Unknown
  • 16M
Screen area
  • 51.0 cm2
  • 89.6 cm2
Screen format
  • 16:9 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 57.8%
  • 65.7%
PPI /points per inch/
  • 256 PPI
  • 258 PPI
Screen protection Unknown
  • Corning Gorilla Glass
Camera and Video
Camera and Video — specifications for A27 Retina, Boost MAX+.
SpecificationA27 RetinaBoost MAX+
Rear camera, main
  • 8 MP
  • Single
  • 8 MP
  • Single
Camera specs
  • 8 MP
  • AF
  • 8 MP
Functions
  • LED flash
Unknown
Video
  • Yes
  • 720p
Front camera, selfie
  • 2 MP
  • Single
  • 1 MP
  • Single
Specifications
  • 2 MP
  • 1 MP
Performance
Performance — specifications for A27 Retina, Boost MAX+.
SpecificationA27 RetinaBoost MAX+
Processor CPU
  • Dual-core 1.2 GHz
  • Quad-core 1.2 GHz
General specs
General specs — specifications for A27 Retina, Boost MAX+.
SpecificationA27 RetinaBoost MAX+
Release date
  • 2013
  • March
  • 2015
  • July
Colors
  • Black
  • Gold
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 160 EUR
  • 180 EUR
Battery life
  • Stand by time- Up to 180 h Talking time- Up to 4 h
  • Talking time- Up to 16 h (3G)
Communication and Connectivity
Communication and Connectivity — specifications for A27 Retina, Boost MAX+.
SpecificationA27 RetinaBoost MAX+
SIM card
  • Dual SIM (Mini-SIM)
  • Micro-SIM
Network
  • Show all network frequencies: -2G - GSM 900 / 1800 / 1900 - SIM 1 & SIM 2
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 -3G - HSDPA -4G - LTE
Speed
  • HSPA 7.2/0.384 Mbps
  • HSPA
  • LTE
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
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, Boost MAX+.
SpecificationA27 RetinaBoost MAX+
Radio
  • FM radio
  • No
Others Unknown
  • Dolby Digital Plus audio enhancement audio -Active noise cancellation with dedicated mic
Other features
Other features — specifications for A27 Retina, Boost MAX+.
SpecificationA27 RetinaBoost MAX+
Dop
  • Sensors Accelerometer
  • Sensors Yes