Micromax A57 Ninja 3.0 vs Xiaomi Redmi Note 7

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

    A57 Ninja 3.0: 92.2 g lighter

    A57 Ninja 3.0:
    93.8 g
    Redmi Note 7:
    186 g
  • Width

    A57 Ninja 3.0: 13.2 mm narrower

    A57 Ninja 3.0:
    62 mm
    Redmi Note 7:
    75.2 mm
  • Screen diagonal

    A57 Ninja 3.0: 2.8 in smaller diagonal

    A57 Ninja 3.0:
    3.5 in
    Redmi Note 7:
    6.3 in
  • Rear camera layout

    A57 Ninja 3.0:
    Single
    Redmi Note 7:
    Dual
  • Depth

    Redmi Note 7: 3.4 mm thinner

    A57 Ninja 3.0:
    11.5 mm
    Redmi Note 7:
    8.1 mm
  • Height

    A57 Ninja 3.0: 43.2 mm shorter

    A57 Ninja 3.0:
    116 mm
    Redmi Note 7:
    159.2 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. A57 Ninja 3.0

    Height:
    116 mm
    Width:
    62 mm
    Depth:
    11.5 mm +3.4 mm versus Redmi Note 7
  2. 2. Redmi Note 7

    Height:
    159.2 mm +43.2 mm versus A57 Ninja 3.0
    Width:
    75.2 mm +13.2 mm versus A57 Ninja 3.0
    Depth:
    8.1 mm

Weight

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

  1. 1. A57 Ninja 3.0

    93.8 g

  2. 2. Redmi Note 7

    186 g

    +92.2 g versus A57 Ninja 3.0

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. A57 Ninja 3.0

    Screen diagonal:
    3.5 in
    Aspect ratio (height:width):
    3:2
    Approximate rectangular screen area:
    36.5 cm²
  2. 2. Redmi Note 7

    Screen diagonal:
    6.3 in
    Aspect ratio (height:width):
    19.5:9
    Approximate rectangular screen area:
    97.4 cm²

Redmi Note 7 has approximately 167.1% more rectangular screen area than A57 Ninja 3.0.

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.

A57 Ninja 3.0: Original memory entry

512 MB RAM · 256 MB

Redmi Note 7: Original memory entry

64 GB · 4/6 GB RAM 32 GB · 3 GB 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. A57 Ninja 3.0

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

2. Redmi Note 7

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 256 GB (uses SIM 2 slot)

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. A57 Ninja 3.0

    1400 mAh

  2. 2. Redmi Note 7

    4000 mAh

    +2600 mAh versus A57 Ninja 3.0

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. A57 Ninja 3.02. Redmi Note 7

Everyday essentials
Everyday essentials — specifications for A57 Ninja 3.0, Redmi Note 7.
SpecificationA57 Ninja 3.0Redmi Note 7
Dimensions (HxWxD)
  • 116 Х 62 Х 11.5 mm
  • 159.2 Х 75.2 Х 8.1 mm
Weight
  • 93.8 g
  • 186 g
Technology
  • TFT
  • IPS LCD
Screen size
  • 3.5" inch
  • 6.3" inch
Screen resolution
  • 320 x 480 px
  • 1080 x 2340 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 512 MB RAM
  • 256 MB
  • 64 GB
  • 4/6 GB RAM 32 GB
  • 3 GB RAM
Memory card support
  • microSD
  • up to 32 GB (dedicated slot)
  • microSD
  • up to 256 GB (uses SIM 2 slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1400 mAh
  • Removable Li-Ion
  • 4000 mAh
  • Non-removable Li-Po
Operating system OS
  • Android 2.3.5 (Gingerbread)
  • Android 9.0 (Pie); MIUI 10
Chipset Unknown
  • Qualcomm SDM660 Snapdragon 660 (14 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for A57 Ninja 3.0, Redmi Note 7.
SpecificationA57 Ninja 3.0Redmi Note 7
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 256K
  • 16M
Screen area
  • 36.5 cm2
  • 97.4 cm2
Screen format
  • 3:2 (height:width)
  • 19.5:9 (height:width)
Screen to body ratio
  • 50.7%
  • 81.4%
PPI /points per inch/
  • 165 PPI
  • 409 PPI
Screen protection Unknown
  • Corning Gorilla Glass 5
Camera and Video
Camera and Video — specifications for A57 Ninja 3.0, Redmi Note 7.
SpecificationA57 Ninja 3.0Redmi Note 7
Rear camera, main
  • 3.15 MP
  • Single
  • 48 MP
  • Dual
Camera specs
  • 3.15 MP
  • 48 MP
  • f/1.8
  • 1/2''
  • 0.8µm
  • PDAF -5 MP
  • f/2.4
  • depth sensor
Functions Unknown
  • HDR
Video
  • Yes
  • 1080p@30fps
Front camera, selfie
  • 0 MP,
  • 13 MP
  • Single
Specifications Unknown
  • 13 MP
Performance

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

Performance — specifications for A57 Ninja 3.0, Redmi Note 7.
SpecificationA57 Ninja 3.0Redmi Note 7
Processor CPU
  • 1.0 GHz
  • Octa-core (4x2.2 GHz Kryo 260 & 4x1.8 GHz Kryo 260)
Graphics processor GPU
  • Adreno 200
  • Adreno 512
Antutu 7 score * Unknown
  • 144610
GeekBench 4 Single Core * Unknown
  • 1462
GeekBench 4 Multi-Core * Unknown
  • 4556
Antutu 8 score * Unknown
  • 179213
GeekBench 5 Single Core * Unknown
  • 334
GeekBench 5 Multi-Core * Unknown
  • 1294
General specs
General specs — specifications for A57 Ninja 3.0, Redmi Note 7.
SpecificationA57 Ninja 3.0Redmi Note 7
Release date
  • 2012
  • September
  • 2019
  • January
Colors
  • Black
  • Blue
  • Black
  • Twilight Gold
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 70 EUR
  • 150 EUR
Battery life
  • Stand by time- Up to 145 h Talking time- Up to 4 h
Unknown
Communication and Connectivity
Communication and Connectivity — specifications for A57 Ninja 3.0, Redmi Note 7.
SpecificationA57 Ninja 3.0Redmi Note 7
SIM card
  • Dual SIM (Mini-SIM
  • dual stand-by)
  • 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 -3G - HSDPA 850 / 900 / 1900 / 2100 -4G - LTE band 1(2100)
  • 3(1800)
  • 5(850)
  • 7(2600)
  • 8(900)
  • 34(2000)
  • 38(2600)
  • 39(1900)
  • 40(2300)
  • 41(2500)
Speed
  • HSPA 7.2/5.76 Mbps
  • HSPA 42.2/5.76 Mbps
  • LTE-A (3CA) Cat9 450/50 Mbps
GPRS
  • Class 12
  • 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
  • BDS
USB
  • microUSB 2.0
  • 2.0
  • Type-C 1.0 reversible connector
Bluetooth
  • 2.0
  • 5.0
  • A2DP
  • LE
Harmful irradiation
  • SAR - 0.86 W/kg (head) 0.60 W/kg (body)
Unknown
Music and Audio
Music and Audio — specifications for A57 Ninja 3.0, Redmi Note 7.
SpecificationA57 Ninja 3.0Redmi Note 7
Radio
  • FM radio
  • FM radio
  • recording
Others Unknown
  • Active noise cancellation with dedicated mic
Other features
Other features — specifications for A57 Ninja 3.0, Redmi Note 7.
SpecificationA57 Ninja 3.0Redmi Note 7
Dop
  • Sensors Accelerometer MP3/AAC/WMA/WAV player -MP4/WMV/H.264 player -Document viewer -Photo viewer/editor
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass
  • Infrared port - Fast battery charging (Quick Charge 4)