Micromax Ninja A91 vs Wiko Robby

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

    Ninja A91: 35.9 g lighter

    Ninja A91:
    149.1 g
    Robby:
    185 g
  • Width

    Ninja A91: 13.1 mm narrower

    Ninja A91:
    66 mm
    Robby:
    79.1 mm
  • Screen diagonal

    Ninja A91: 1 in smaller diagonal

    Ninja A91:
    4.5 in
    Robby:
    5.5 in
  • Chipset

    Ninja A91:
    Mediatek MT6577 (40 nm)
    Robby:
    Mediatek MT6580M (28 nm)
  • Height

    Ninja A91: 25 mm shorter

    Ninja A91:
    130 mm
    Robby:
    155 mm
  • Release year

    Ninja A91:
    2013
    Robby:
    2016

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. Ninja A91

    Height:
    130 mm
    Width:
    66 mm
    Depth:
    10 mm
  2. 2. Robby

    Height:
    155 mm +25 mm versus Ninja A91
    Width:
    79.1 mm +13.1 mm versus Ninja A91
    Depth:
    10 mm

Weight

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

  1. 1. Ninja A91

    149.1 g

  2. 2. Robby

    185 g

    +35.9 g versus Ninja A91

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. Ninja A91

    Screen diagonal:
    4.5 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    55.8 cm²
  2. 2. Robby

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

Robby has approximately 49.4% more rectangular screen area than Ninja A91.

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 Ninja A91, Robby, compared at the same storage capacity.
StorageNinja A91Robby
16 GB Unknown 1 GB RAM
Ninja A91: Original memory entry

2 GB

Practical features

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

1. Ninja A91

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

2. Robby

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 64 GB

Battery capacity

Capacity is not battery life. No endurance test is implied.

At least two unambiguous positive capacity values are needed for a chart. Original entries remain in the specifications.

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. Ninja A912. Robby

Everyday essentials
Everyday essentials — specifications for Ninja A91, Robby.
SpecificationNinja A91Robby
Dimensions (HxWxD)
  • 130 Х 66 Х 10 mm
  • 155 Х 79.1 Х 10 mm
Weight
  • 149.1 g
  • 185 g
Technology
  • TFT
  • IPS LCD
Screen size
  • 4.5" inch
  • 5.5" inch
Screen resolution
  • 480 x 854 px
  • 720 x 1280 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 2 GB
  • 16 GB
  • 1 GB RAM
Memory card support
  • microSD
  • up to 32 GB (dedicated slot)
  • microSD
  • up to 64 GB
Battery Capacity is not battery life. No endurance test is implied.
  • 0 mAh,
  • 2500 mAh
  • Removable Li-Po
Operating system OS
  • Android 4.0 (Ice Cream Sandwich)
  • Android 6.0.1 (Marshmallow)
Chipset
  • Mediatek MT6577 (40 nm)
  • Mediatek MT6580M (28 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Ninja A91, Robby.
SpecificationNinja A91Robby
Touchscreen
  • touchscreen
  • capacitive touchscreen
Display colors Unknown
  • 16M
Screen area
  • 55.8 cm2
  • 83.4 cm2
Screen format
  • 16:9 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 65.0%
  • 68.0%
PPI /points per inch/
  • 218 PPI
  • 267 PPI
Camera and Video
Camera and Video — specifications for Ninja A91, Robby.
SpecificationNinja A91Robby
Rear camera, main
  • 5 MP
  • Single
  • 8 MP
  • Single
Camera specs
  • 5 MP
  • 8 MP
  • f/2.0
  • 1/4''
  • 1.12µm
Functions Unknown
  • LED flash
Video
  • Yes
  • 1080p@30fps
Front camera, selfie
  • 0.3 MP
  • Single
  • 5 MP
  • Single
Specifications
  • VGA
  • 5 MP
  • f/2.4
  • 1/5''
  • 1.1µm
Performance

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

Performance — specifications for Ninja A91, Robby.
SpecificationNinja A91Robby
Processor CPU
  • Dual-core 1.0 GHz Cortex-A9
  • Quad-core 1.3 GHz Cortex-A7
Graphics processor GPU
  • PowerVR SGX531u
  • Mali-400MP2
Antutu 7 score * Unknown
  • 34192
GeekBench 4 Single Core * Unknown
  • 405
GeekBench 4 Multi-Core * Unknown
  • 1112
General specs
General specs — specifications for Ninja A91, Robby.
SpecificationNinja A91Robby
Release date
  • 2013
  • March
  • 2016
  • February
Colors
  • Black
  • Space Grey
  • Gold
  • Bleen
  • Rose Gold
  • Lime
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 120 EUR
Unknown
Battery life
  • Stand by time- Up to 230 h Talking time- Up to 4 h 30 min
  • Stand by time- Up to 270 h (2G) / Up to 270 h (3G) Talking time- Up to 17 h (2G) / Up to 15 h (3G)
Communication and Connectivity
Communication and Connectivity — specifications for Ninja A91, Robby.
SpecificationNinja A91Robby
SIM card
  • Dual SIM
  • Dual SIM (Micro-SIM
  • dual stand-by)
Network
  • Show all network frequencies: -2G - GSM 900 / 1800 - SIM 1 & SIM 2
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
Speed
  • HSPA
  • HSPA 21.1/5.76 Mbps
GPRS
  • Class 10
  • Up to 107 kbps
Edge
  • Class 12
  • Up to 296 kbps
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • hotspot
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi Direct
  • hotspot
GPS
  • Yes
  • Yes
  • with A-GPS
USB
  • Proprietary
  • microUSB 2.0
  • USB Host
Bluetooth
  • 3.0
  • 4.0
  • A2DP
Harmful irradiation Unknown
  • SAR EU - 0.30 W/kg (head) 0.46 W/kg (body)
Music and Audio
Music and Audio — specifications for Ninja A91, Robby.
SpecificationNinja A91Robby
Radio
  • FM radio
  • FM radio
Others Unknown
  • Active noise cancellation with dedicated mic
Other features
Other features — specifications for Ninja A91, Robby.
SpecificationNinja A91Robby
Dop
  • Sensors Accelerometer
  • Sensors Accelerometer
  • proximity - For Europe