Celkon A40 vs Micromax W900

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

    W900: 13.5 g lighter

    A40:
    126.5 g
    W900:
    113 g
  • Width

    W900: 9 mm narrower

    A40:
    64 mm
    W900:
    55 mm
  • Screen diagonal

    W900: 0.8 in smaller diagonal

    A40:
    4 in
    W900:
    3.2 in
  • Depth

    A40: 3.4 mm thinner

    A40:
    10.8 mm
    W900:
    14.2 mm
  • Height

    W900: 14.2 mm shorter

    A40:
    126.2 mm
    W900:
    112 mm
  • Release year

    A40:
    2014
    W900:
    2010

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. A40

    Height:
    126.2 mm +14.2 mm versus W900
    Width:
    64 mm +9 mm versus W900
    Depth:
    10.8 mm
  2. 2. W900

    Height:
    112 mm
    Width:
    55 mm
    Depth:
    14.2 mm +3.4 mm versus A40

Weight

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

  1. 1. A40

    126.5 g

    +13.5 g versus W900

  2. 2. W900

    113 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. A40

    Screen diagonal:
    4 in
    Aspect ratio (height:width):
    5:3
    Approximate rectangular screen area:
    45.5 cm²
  2. 2. W900

    Screen diagonal:
    3.2 in
    Aspect ratio (height:width):
    5:3
    Approximate rectangular screen area:
    29.1 cm²

A40 has approximately 56.3% more rectangular screen area than W900.

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.

A40: Original memory entry

4 GB · 512 MB RAM

W900: Original memory entry

256 MB ROM · 128 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. A40

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

2. W900

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 16 GB (dedicated slot) · 2 GB included

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. A40

    1500 mAh

  2. 2. W900

    1500 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. A402. W900

Everyday essentials
Everyday essentials — specifications for A40, W900.
SpecificationA40W900
Dimensions (HxWxD)
  • 126.2 Х 64 Х 10.8 mm
  • 112 Х 55 Х 14.2 mm
Weight
  • 126.5 g
  • 113 g
Technology
  • TFT
  • TFT
Screen size
  • 4" inch
  • 3.2" inch
Screen resolution
  • 480 x 800 px
  • 240 x 400 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 4 GB
  • 512 MB RAM
  • 256 MB ROM
  • 128 MB RAM
Memory card support
  • microSD
  • up to 32 GB (dedicated slot)
  • microSD
  • up to 16 GB (dedicated slot)
  • 2 GB included
Battery Capacity is not battery life. No endurance test is implied.
  • 1500 mAh
  • Li-Ion
  • 1500 mAh
  • Removable Li-Ion
Operating system OS
  • Android 4.2.2 (Jelly Bean)
  • Microsoft Windows Mobile 6.1 Professional
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for A40, W900.
SpecificationA40W900
Touchscreen
  • touchscreen
  • resistive touchscreen
Display colors Unknown
  • 256K
Screen area
  • 45.5 cm2
  • 29.1 cm2
Screen format
  • 5:3 (height:width)
  • 5:3 (height:width)
Screen to body ratio
  • 56.4%
  • 47.3%
PPI /points per inch/
  • 233 PPI
  • 146 PPI
Camera and Video
Camera and Video — specifications for A40, W900.
SpecificationA40W900
Rear camera, main
  • 5 MP
  • Single
  • 2 MP
  • Single
Camera specs
  • 5 MP
  • 2 MP
Video
  • Yes
  • No
Front camera, selfie
  • 0.3 MP
  • Single
  • 0 MP,
Specifications
  • VGA
Unknown
Performance
Performance — specifications for A40, W900.
SpecificationA40W900
Processor CPU
  • Dual-core 1.3 GHz
  • K3 Hi3611 460MHz
General specs
General specs — specifications for A40, W900.
SpecificationA40W900
Release date
  • 2014
  • January
  • 2010
  • February
Colors
  • White
  • Yellow
  • Blue
  • Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer. Unknown
  • 60 EUR
Battery life Unknown
  • Stand by time- Up to 480 h Talking time- Up to 5 h
Communication and Connectivity
Communication and Connectivity — specifications for A40, W900.
SpecificationA40W900
SIM card
  • Dual SIM
  • Mini-SIM
GPRS
  • Yes
  • Class 10
Edge
  • Yes
  • Class 10
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • hotspot
  • Wi-Fi 802.11 b/g
GPS
  • Yes
  • Yes
  • with A-GPS
USB
  • microUSB 2.0
  • Proprietary
Bluetooth
  • 2.0
  • Yes
Music and Audio
Music and Audio — specifications for A40, W900.
SpecificationA40W900
Radio
  • FM radio
  • No
Other features
Other features — specifications for A40, W900.
SpecificationA40W900
Dop
  • Sensors Accelerometer
  • proximity
  • Sensors Accelerometer Organizer -Document viewer -MP3/AAC+/WAV/WMA player -MP4/H.264/WMV player -Voice memo -Predictive text input