Micromax Bolt Q381 vs Palm Centro

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.

  • Screen diagonal

    Centro: 2.75 in smaller diagonal

    Bolt Q381:
    5 in
    Centro:
    2.25 in
  • Release year

    Bolt Q381:
    2016
    Centro:
    2008

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 Q381

    Height:
    Unknown
    Width:
    Unknown
    Depth:
    Unknown
    Weight:
    Unknown

    Unavailable dimensions are omitted from the drawing.

  2. 2. Centro

    Height:
    107.2 mm
    Width:
    53.5 mm
    Depth:
    18.6 mm
    Weight:
    124 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. Bolt Q381

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

    Screen diagonal:
    2.25 in
    Aspect ratio (height:width):
    1:1
    Approximate rectangular screen area:
    16.3 cm²

Bolt Q381 has approximately 322% more rectangular screen area than Centro.

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 Q381, Centro, compared at the same storage capacity.
StorageBolt Q381Centro
8 GB 1 GB RAM Unknown
Centro: Original memory entry

64 MB

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 Q381

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

2. Centro

NFC:
Unknown
Headphone jack:
No
Memory card support:
See details microSD · up to 4 GB (dedicated 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. Bolt Q381

    2000 mAh

    +850 mAh versus Centro

  2. 2. Centro

    1150 mAh

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 Q3812. Centro

Everyday essentials
Everyday essentials — specifications for Bolt Q381, Centro.
SpecificationBolt Q381Centro
Dimensions (HxWxD)
  • Х Х mm
  • 107.2 Х 53.5 Х 18.6 mm
Weight
  • 0 g
  • 124 g
Technology
  • IPS LCD
  • TFT
Screen size
  • 5" inch
  • 2.25" inch
Screen resolution
  • 480 x 854 px
  • 320 x 320 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 8 GB
  • 1 GB RAM
  • 64 MB
Memory card support
  • microSD
  • up to 32 GB
  • microSD
  • up to 4 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 2000 mAh
  • Removable Li-Ion
  • 1150 mAh
  • Removable Li-Ion
Operating system OS
  • Android 5.1 (Lollipop)
  • Palm OS 5.4.9
Chipset
  • Spreadtrum SC7731G
Unknown
Headphone jack
  • Yes
  • No
Display
Display — specifications for Bolt Q381, Centro.
SpecificationBolt Q381Centro
Touchscreen
  • capacitive touchscreen
  • resistive touchscreen
Display colors
  • 16M
  • 65K
Screen area
  • 68.9 cm2
  • 16.3 cm2
Screen format
  • 16:9 (height:width)
  • 1:1 (height:width)
Screen to body ratio Unknown
  • 28.5%
PPI /points per inch/
  • 196 PPI
  • 201 PPI
Camera and Video
Camera and Video — specifications for Bolt Q381, Centro.
SpecificationBolt Q381Centro
Rear camera, main
  • 5 MP
  • Single
  • 1.3 MP
  • Single
Camera specs
  • 5 MP
  • 1.3 MP
Video
  • 720p
  • Yes
Front camera, selfie
  • 0.3 MP
  • Single
  • 0 MP,
Specifications
  • VGA
Unknown
Performance
Performance — specifications for Bolt Q381, Centro.
SpecificationBolt Q381Centro
Processor CPU
  • Quad-core 1.3 GHz Cortex-A7
  • 32-bit Intel XScale PXA270 312 MHz
General specs
General specs — specifications for Bolt Q381, Centro.
SpecificationBolt Q381Centro
Release date
  • 2016
  • July
  • 2008
  • February
Colors
  • Black
  • Obsidian
  • Glacier
  • Midnight
  • Cobalt
  • Onyx
  • Electric Blue
  • Rose
  • Olive
Historical recorded price Legacy catalogue value; date unknown. Not a current offer. Unknown
  • 70 EUR
Battery life
  • Stand by time- Up to 360 h Talking time- Up to 6 h 30 min
  • Stand by time- Up to 300 h Talking time- Up to 4 h
Communication and Connectivity
Communication and Connectivity — specifications for Bolt Q381, Centro.
SpecificationBolt Q381Centro
SIM card
  • Dual SIM (Micro-SIM/ Mini-SIM
  • dual stand-by)
  • Mini-SIM
Network
  • Show all network frequencies: -2G - GSM 900 / 1800 - SIM 1 & SIM 2
Unknown
Speed
  • HSPA
Unknown
GPRS
  • Yes
  • Class 10
Edge
  • Yes
  • Class 10
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • hotspot
  • No
GPS
  • Yes
  • with A-GPS
  • No
USB
  • microUSB 2.0
  • Proprietary
Bluetooth
  • 2.1
  • 1.2
  • A2DP
Harmful irradiation Unknown
  • SAR - 0.27 W/kg (head) 0.22 W/kg (body)
Music and Audio
Music and Audio — specifications for Bolt Q381, Centro.
SpecificationBolt Q381Centro
Radio
  • FM radio
  • No
Others Unknown
  • 5-way navigation button
Other features
Other features — specifications for Bolt Q381, Centro.
SpecificationBolt Q381Centro
Dop
  • Sensors Accelerometer
  • Infrared port - Document editor (Word
  • Excel
  • PowerPoint
  • PDF) -MP3 player -Organizer -Voice memo