Micromax Ninja A91 vs ZTE Nubia Z9 mini

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.

  • Width

    Ninja A91: 3.8 mm narrower

    Ninja A91:
    66 mm
    Nubia Z9 mini:
    69.8 mm
  • Screen diagonal

    Ninja A91: 0.5 in smaller diagonal

    Ninja A91:
    4.5 in
    Nubia Z9 mini:
    5 in
  • Chipset

    Ninja A91:
    Mediatek MT6577 (40 nm)
    Nubia Z9 mini:
    Qualcomm MSM8939 Snapdragon 615 (28 nm)
  • Depth

    Nubia Z9 mini: 1.8 mm thinner

    Ninja A91:
    10 mm
    Nubia Z9 mini:
    8.2 mm
  • Height

    Ninja A91: 11.3 mm shorter

    Ninja A91:
    130 mm
    Nubia Z9 mini:
    141.3 mm
  • Release year

    Ninja A91:
    2013
    Nubia Z9 mini:
    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. Ninja A91

    Height:
    130 mm
    Width:
    66 mm
    Depth:
    10 mm +1.8 mm versus Nubia Z9 mini
  2. 2. Nubia Z9 mini

    Height:
    141.3 mm +11.3 mm versus Ninja A91
    Width:
    69.8 mm +3.8 mm versus Ninja A91
    Depth:
    8.2 mm

Weight

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

  1. 1. Ninja A91

    149.1 g

    +2.1 g versus Nubia Z9 mini

  2. 2. Nubia Z9 mini

    147 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. Ninja A91

    Screen diagonal:
    4.5 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    55.8 cm²
  2. 2. Nubia Z9 mini

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

Nubia Z9 mini has approximately 23.5% 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, Nubia Z9 mini, compared at the same storage capacity.
StorageNinja A91Nubia Z9 mini
16 GB Unknown 2 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. Nubia Z9 mini

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 256 GB (dedicated slot)

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. Nubia Z9 mini

Everyday essentials
Everyday essentials — specifications for Ninja A91, Nubia Z9 mini.
SpecificationNinja A91Nubia Z9 mini
Dimensions (HxWxD)
  • 130 Х 66 Х 10 mm
  • 141.3 Х 69.8 Х 8.2 mm
Weight
  • 149.1 g
  • 147 g
Technology
  • TFT
  • IPS LCD
Screen size
  • 4.5" inch
  • 5" inch
Screen resolution
  • 480 x 854 px
  • 1080 x 1920 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 2 GB
  • 16 GB
  • 2 GB RAM
Memory card support
  • microSD
  • up to 32 GB (dedicated slot)
  • microSD
  • up to 256 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 0 mAh,
  • 2900 mAh
  • Non-removable Li-Ion
Operating system OS
  • Android 4.0 (Ice Cream Sandwich)
  • Android 5.0.2 (Lollipop); nubia UI 2.8
Chipset
  • Mediatek MT6577 (40 nm)
  • Qualcomm MSM8939 Snapdragon 615 (28 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Ninja A91, Nubia Z9 mini.
SpecificationNinja A91Nubia Z9 mini
Touchscreen
  • touchscreen
  • capacitive touchscreen
Display colors Unknown
  • 16M
Screen area
  • 55.8 cm2
  • 68.9 cm2
Screen format
  • 16:9 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 65.0%
  • 69.9%
PPI /points per inch/
  • 218 PPI
  • 441 PPI
Camera and Video
Camera and Video — specifications for Ninja A91, Nubia Z9 mini.
SpecificationNinja A91Nubia Z9 mini
Rear camera, main
  • 5 MP
  • Single
  • 16 MP
  • Single
Camera specs
  • 5 MP
  • 16 MP
  • AF
  • f/2.0
Functions Unknown
  • LED flash
  • panorama
  • HDR
Video
  • Yes
  • 1080p@30fps
Front camera, selfie
  • 0.3 MP
  • Single
  • 8 MP
  • Single
Specifications
  • VGA
  • 8 MP
  • f/2.4
Performance
Performance — specifications for Ninja A91, Nubia Z9 mini.
SpecificationNinja A91Nubia Z9 mini
Processor CPU
  • Dual-core 1.0 GHz Cortex-A9
  • Octa-core (4x1.5 GHz Cortex-A53 & 4x1.0 GHz Cortex-A53)
Graphics processor GPU
  • PowerVR SGX531u
  • Adreno 405
General specs
General specs — specifications for Ninja A91, Nubia Z9 mini.
SpecificationNinja A91Nubia Z9 mini
Release date
  • 2013
  • March
  • 2015
  • March
Colors
  • Black
  • Black
  • White
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 120 EUR
  • 170 EUR
Battery life
  • Stand by time- Up to 230 h Talking time- Up to 4 h 30 min
  • Stand by time- Up to 750 h (3G) Talking time- Up to 43 h (3G)
Communication and Connectivity
Communication and Connectivity — specifications for Ninja A91, Nubia Z9 mini.
SpecificationNinja A91Nubia Z9 mini
SIM card
  • Dual SIM
  • Dual SIM (Nano-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 CDMA 800 -3G - HSDPA 850 / 900 / 1900 / 2100 TD-SCDMA -4G - LTE band 1(2100)
  • 3(1800)
  • 7(2600)
  • 38(2600)
  • 39(1900)
  • 40(2300)
  • 41(2500)
Speed
  • HSPA
  • HSPA
  • LTE Cat4 150/50 Mbps
GPRS
  • Class 10
  • Yes
Edge
  • Class 12
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • hotspot
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • Wi-Fi Direct
  • DLNA
  • hotspot
GPS
  • Yes
  • Yes
  • with A-GPS
  • GLONASS
USB
  • Proprietary
  • microUSB 2.0
  • USB Host
Bluetooth
  • 3.0
  • 4.0
  • A2DP
Music and Audio
Music and Audio — specifications for Ninja A91, Nubia Z9 mini.
SpecificationNinja A91Nubia Z9 mini
Radio
  • FM radio
  • FM radio
Others Unknown
  • Active noise cancellation with dedicated mic
Other features
Other features — specifications for Ninja A91, Nubia Z9 mini.
SpecificationNinja A91Nubia Z9 mini
Dop
  • Sensors Accelerometer
  • Sensors Accelerometer
  • proximity
  • compass