Micromax Ninja A91 vs Xiaomi Redmi K30

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: 58.9 g lighter

    Ninja A91:
    149.1 g
    Redmi K30:
    208 g
  • Width

    Ninja A91: 10.6 mm narrower

    Ninja A91:
    66 mm
    Redmi K30:
    76.6 mm
  • Screen diagonal

    Ninja A91: 2.17 in smaller diagonal

    Ninja A91:
    4.5 in
    Redmi K30:
    6.67 in
  • Chipset

    Ninja A91:
    Mediatek MT6577 (40 nm)
    Redmi K30:
    Qualcomm SDM730 Snapdragon 730G (8 nm)
  • Rear camera layout

    Ninja A91:
    Single
    Redmi K30:
    Quad
  • Depth

    Redmi K30: 1.2 mm thinner

    Ninja A91:
    10 mm
    Redmi K30:
    8.8 mm

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 +1.2 mm versus Redmi K30
  2. 2. Redmi K30

    Height:
    165.3 mm +35.3 mm versus Ninja A91
    Width:
    76.6 mm +10.6 mm versus Ninja A91
    Depth:
    8.8 mm

Weight

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

  1. 1. Ninja A91

    149.1 g

  2. 2. Redmi K30

    208 g

    +58.9 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. Redmi K30

    Screen diagonal:
    6.67 in
    Aspect ratio (height:width):
    20:9
    Approximate rectangular screen area:
    107.4 cm²

Redmi K30 has approximately 92.4% 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, Redmi K30, compared at the same storage capacity.
StorageNinja A91Redmi K30
64 GB Unknown 6 GB RAM
128 GB Unknown 6 / 8 GB RAM Alternative RAM configurations
256 GB Unknown 8 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. Redmi K30

NFC:
Yes
Headphone jack:
Yes
Memory card support:
See details microSD · up to 256 GB (uses shared SIM 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. Redmi K30

Everyday essentials
Everyday essentials — specifications for Ninja A91, Redmi K30.
SpecificationNinja A91Redmi K30
Dimensions (HxWxD)
  • 130 Х 66 Х 10 mm
  • 165.3 Х 76.6 Х 8.8 mm
Weight
  • 149.1 g
  • 208 g
Technology
  • TFT
  • IPS LCD
Screen size
  • 4.5" inch
  • 6.67" inch
Screen resolution
  • 480 x 854 px
  • 1080 x 2400 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 2 GB
  • 64GB 6GB RAM
  • 128GB 6GB RAM
  • 128GB 8GB RAM
  • 256GB 8GB RAM
Memory card support
  • microSD
  • up to 32 GB (dedicated slot)
  • microSD
  • up to 256 GB (uses shared SIM slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 0 mAh,
  • 4500 mAh
  • Non-removable Li-Po
Operating system OS
  • Android 4.0 (Ice Cream Sandwich)
  • Android 10; MIUI 11
Chipset
  • Mediatek MT6577 (40 nm)
  • Qualcomm SDM730 Snapdragon 730G (8 nm)
NFC Unknown
  • Yes
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Ninja A91, Redmi K30.
SpecificationNinja A91Redmi K30
Touchscreen
  • touchscreen
  • capacitive touchscreen
Display colors Unknown
  • 16M
Screen area
  • 55.8 cm2
  • 107.4 cm2
Screen format
  • 16:9 (height:width)
  • 20:9 (height:width)
Screen to body ratio
  • 65.0%
  • 84.8%
PPI /points per inch/
  • 218 PPI
  • 395 PPI
Screen protection Unknown
  • Corning Gorilla Glass 5
Camera and Video
Camera and Video — specifications for Ninja A91, Redmi K30.
SpecificationNinja A91Redmi K30
Rear camera, main
  • 5 MP
  • Single
  • 64 MP
  • Quad
Camera specs
  • 5 MP
  • 64 MP
  • f/1.9
  • 26mm (wide)
  • 1/1.72''
  • 0.8µm
  • PDAF -8 MP
  • f/2.2
  • 13mm (ultrawide)
  • 1/4''
  • 1.12µm -2 MP
  • f/2.4
  • 1/5''
  • 1.75µm (dedicated macro camera) -2 MP
  • 1.75µm
  • depth sensor
Functions Unknown
  • HDR
Video
  • Yes
  • 1080p@30fps
Front camera, selfie
  • 0.3 MP
  • Single
  • 20 MP
  • Dual
Specifications
  • VGA
  • 20 MP
  • f/2.2
  • 27mm (wide)
  • 1/3.4''
  • 0.8µm 2 MP
  • f/2.4
  • 1/5''
  • 1.75µm
  • depth sensor
Performance

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

Performance — specifications for Ninja A91, Redmi K30.
SpecificationNinja A91Redmi K30
Processor CPU
  • Dual-core 1.0 GHz Cortex-A9
  • Octa-core (2x2.2 GHz Kryo 470 Gold & 6x1.8 GHz Kryo 470 Silver)
Graphics processor GPU
  • PowerVR SGX531u
  • Adreno 618
Antutu 8 score * Unknown
  • 279345
GeekBench 5 Single Core * Unknown
  • 542
GeekBench 5 Multi-Core * Unknown
  • 1685
General specs
General specs — specifications for Ninja A91, Redmi K30.
SpecificationNinja A91Redmi K30
Release date
  • 2013
  • March
  • 2019
  • December
Colors
  • Black
  • Blue
  • Red
  • Purple
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 120 EUR
  • 210 EUR
Battery life
  • Stand by time- Up to 230 h Talking time- Up to 4 h 30 min
Unknown
Communication and Connectivity
Communication and Connectivity — specifications for Ninja A91, Redmi K30.
SpecificationNinja A91Redmi K30
SIM card
  • Dual SIM
  • Hybrid 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 & TD-SCDMA -3G - HSDPA 850 / 900 / 2100 CDMA2000 1xEV-DO -4G - LTE band 1(2100)
  • 3(1800)
  • 5(850)
  • 8(900)
  • 34(2000)
  • 38(2600)
  • 39(1900)
  • 40(2300)
  • 41(2500)
Speed
  • HSPA
  • HSPA 42.2/5.76 Mbps
  • LTE-A
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
  • hotspot
GPS
  • Yes
  • Yes
  • with A-GPS
  • GLONASS
  • GALILEO
  • BDS
USB
  • Proprietary
  • 2.0
  • Type-C 1.0 reversible connector
  • USB On-The-Go
Bluetooth
  • 3.0
  • 5.0
  • A2DP
  • LE
  • aptX HD
Music and Audio
Music and Audio — specifications for Ninja A91, Redmi K30.
SpecificationNinja A91Redmi K30
Radio
  • FM radio
  • FM radio
Others Unknown
  • HDR10 -120Hz
  • 24-bit/192kHz audio -Active noise cancellation with dedicated mic
Other features
Other features — specifications for Ninja A91, Redmi K30.
SpecificationNinja A91Redmi K30
Dop
  • Sensors Accelerometer
  • Sensors Fingerprint (side-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass
  • Infrared port - Fast battery charging 27W (100% in 68 min)