Micromax Bolt A51 vs Nokia 2.3

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

    Bolt A51: 65 g lighter

    Bolt A51:
    118 g
    2.3:
    183 g
  • Width

    Bolt A51: 12.9 mm narrower

    Bolt A51:
    62.5 mm
    2.3:
    75.4 mm
  • Screen diagonal

    Bolt A51: 2.7 in smaller diagonal

    Bolt A51:
    3.5 in
    2.3:
    6.2 in
  • Rear camera layout

    Bolt A51:
    Single
    2.3:
    Dual
  • Depth

    2.3: 4.1 mm thinner

    Bolt A51:
    12.8 mm
    2.3:
    8.7 mm
  • Height

    Bolt A51: 39.2 mm shorter

    Bolt A51:
    118.5 mm
    2.3:
    157.7 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. Bolt A51

    Height:
    118.5 mm
    Width:
    62.5 mm
    Depth:
    12.8 mm +4.1 mm versus 2.3
  2. 2. 2.3

    Height:
    157.7 mm +39.2 mm versus Bolt A51
    Width:
    75.4 mm +12.9 mm versus Bolt A51
    Depth:
    8.7 mm

Weight

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

  1. 1. Bolt A51

    118 g

  2. 2. 2.3

    183 g

    +65 g versus Bolt A51

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. Bolt A51

    Screen diagonal:
    3.5 in
    Aspect ratio (height:width):
    3:2
    Approximate rectangular screen area:
    36.5 cm²
  2. 2. 2.3

    Screen diagonal:
    6.2 in
    Aspect ratio (height:width):
    19:9
    Approximate rectangular screen area:
    95.9 cm²

2.3 has approximately 163% more rectangular screen area than Bolt A51.

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 Bolt A51, 2.3, compared at the same storage capacity.
StorageBolt A512.3
32 GB Unknown 2 GB RAM
Bolt A51: Original memory entry

512 MB · 256 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. Bolt A51

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

2. 2.3

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 512 GB

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. Bolt A51

    1500 mAh

  2. 2. 2.3

    4000 mAh

    +2500 mAh versus Bolt A51

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. Bolt A512. 2.3

Everyday essentials
Everyday essentials — specifications for Bolt A51, 2.3.
SpecificationBolt A512.3
Dimensions (HxWxD)
  • 118.5 Х 62.5 Х 12.8 mm
  • 157.7 Х 75.4 Х 8.7 mm
Weight
  • 118 g
  • 183 g
Technology
  • TFT
  • IPS LCD
Screen size
  • 3.5" inch
  • 6.2" inch
Screen resolution
  • 320 x 480 px
  • 720 x 1520 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 512 MB
  • 256 MB RAM
  • 32GB 2GB RAM
Memory card support
  • microSD
  • up to 32 GB (dedicated slot)
  • microSD
  • up to 512 GB
Battery Capacity is not battery life. No endurance test is implied.
  • 1500 mAh
  • Removable Li-Ion
  • 4000 mAh
  • Non-removable Li-Po
Operating system OS
  • Android 2.3.7 (Gingerbread)
  • Android 9.0 (Pie)
  • planned upgrade to Android 10; Android One
Chipset Unknown
  • Mediatek MT6761 Helio A22 (12 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Bolt A51, 2.3.
SpecificationBolt A512.3
Touchscreen
  • touchscreen
  • capacitive touchscreen
Display colors Unknown
  • 16M
Screen area
  • 36.5 cm2
  • 95.9 cm2
Screen format
  • 3:2 (height:width)
  • 19:9 (height:width)
Screen to body ratio
  • 49.3%
  • 80.7%
PPI /points per inch/
  • 165 PPI
  • 271 PPI
Camera and Video
Camera and Video — specifications for Bolt A51, 2.3.
SpecificationBolt A512.3
Rear camera, main
  • 2 MP
  • Single
  • 13 MP
  • Dual
Camera specs
  • 2 MP
  • 13 MP
  • f/2.2
  • 1/3.1"
  • 1.12µm
  • AF -2 MP
  • 1/5.0"
  • 1.75µm
  • depth sensor
Functions
  • LED flash
  • LED flash
  • HDR
  • panorama
Video
  • Yes
  • 1080p@30fps
Front camera, selfie
  • 0.3 MP
  • Single
  • 5 MP
  • Single
Specifications
  • VGA
  • 5 MP
  • f/2.4
Performance

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

Performance — specifications for Bolt A51, 2.3.
SpecificationBolt A512.3
Processor CPU
  • 832 MHz
  • Quad-core 2.0 GHz Cortex-A53
Graphics processor GPU Unknown
  • PowerVR GE8320
Antutu 7 score * Unknown
  • 57321
General specs
General specs — specifications for Bolt A51, 2.3.
SpecificationBolt A512.3
Release date
  • 2013
  • April
  • 2019
  • December
Colors
  • Black/Silver
  • Cyan Green
  • Sand
  • Charcoal
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 70 EUR
  • 110 EUR
Battery life
  • Stand by time- Up to 140 h Talking time- Up to 4 h 30 min
Unknown
Body build Unknown
  • Glass front
  • plastic back
  • plastic frame
Communication and Connectivity
Communication and Connectivity — specifications for Bolt A51, 2.3.
SpecificationBolt A512.3
SIM card
  • Dual SIM
  • Single SIM (Nano-SIM) or 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 (Dual SIM model only) GSM 900 / 1800 / 850 - India -3G - HSDPA 850 / 900 / 2100 - Global HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 - USA / LATAM -4G - LTE band 1(2100)
  • 3(1800)
  • 5(850)
  • 7(2600)
  • 8(900)
  • 20(800)
  • 28(700)
  • 38(2600)
  • 40(2300)
  • 41(2500) - Global
Speed
  • HSPA
  • HSPA 42.2/5.76 Mbps
  • LTE Cat4 150/50 Mbps
GPRS
  • Class 12
  • Yes
Edge
  • Class 32
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • hotspot
  • Wi-Fi 802.11 b/g/n
  • hotspot
GPS
  • No
  • Yes
  • with A-GPS
  • GLONASS
  • BDS
USB
  • microUSB
  • microUSB 2.0
  • USB On-The-Go
Bluetooth
  • 3.0
  • 5.0
  • A2DP
  • LE
Harmful irradiation Unknown
  • SAR - 0.81 W/kg (head) 0.86 W/kg (body) SAR EU - 0.41 W/kg (head) 1.40 W/kg (body)
Music and Audio
Music and Audio — specifications for Bolt A51, 2.3.
SpecificationBolt A512.3
Radio
  • FM radio
  • FM radio
Others Unknown
  • Always-on display
  • Active noise cancellation with dedicated mic
Other features
Other features — specifications for Bolt A51, 2.3.
SpecificationBolt A512.3
Dop
  • Sensors Accelerometer
  • Sensors Accelerometer
  • proximity