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Micromax A45 vs O2 XDA Atom

Compare recorded specifications, size and practical differences.

Micromax A45

Micromax A45

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O2 XDA Atom

O2 XDA Atom

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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

    A45: 20 g lighter

    A45:
    120 g
    XDA Atom:
    140 g
  • Width

    XDA Atom: 5 mm narrower

    A45:
    63 mm
    XDA Atom:
    58 mm
  • Screen diagonal

    XDA Atom: 0.8 in smaller diagonal

    A45:
    3.5 in
    XDA Atom:
    2.7 in
  • Depth

    A45: 5.5 mm thinner

    A45:
    13 mm
    XDA Atom:
    18.5 mm
  • Height

    XDA Atom: 13 mm shorter

    A45:
    115 mm
    XDA Atom:
    102 mm
  • Release year

    A45:
    2012
    XDA Atom:
    2005

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. A45

    Height:
    115 mm +13 mm versus XDA Atom
    Width:
    63 mm +5 mm versus XDA Atom
    Depth:
    13 mm
  2. 2. XDA Atom

    Height:
    102 mm
    Width:
    58 mm
    Depth:
    18.5 mm +5.5 mm versus A45

Weight

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

  1. 1. A45

    120 g

  2. 2. XDA Atom

    140 g

    +20 g versus A45

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. A45

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

    Screen diagonal:
    2.7 in
    Aspect ratio (height:width):
    4:3
    Approximate rectangular screen area:
    22.6 cm²

A45 has approximately 61.6% more rectangular screen area than XDA Atom.

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.

A45: Original memory entry

180 MB

XDA Atom: Original memory entry

64 MB RAM · 128 MB ROM

Practical features

Explicit Yes and No values are shown directly. Qualified or regional records retain their details. Unknown means the record is missing.

1. A45

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

2. XDA Atom

NFC:
Unknown
Headphone jack:
No
Memory card support:
See details miniSD

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. A45

    1300 mAh

  2. 2. XDA Atom

    1530 mAh

    +230 mAh versus A45

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. A452. XDA Atom

Everyday essentials
Everyday essentials — specifications for A45, XDA Atom.
SpecificationA45XDA Atom
Dimensions (HxWxD)
  • 115 Х 63 Х 13 mm
  • 102 Х 58 Х 18.5 mm
Weight
  • 120 g
  • 140 g
Technology
  • TFT
  • TFT
Screen size
  • 3.5" inch
  • 2.7" inch
Screen resolution
  • 320 x 480 px
  • 240 x 320 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 180 MB
  • 64 MB RAM
  • 128 MB ROM
Memory card support
  • microSD
  • up to 32 GB (dedicated slot)
  • miniSD
Battery Capacity is not battery life. No endurance test is implied.
  • 1300 mAh
  • Removable Li-Ion
  • 1530 mAh
  • Removable Li-Po
Operating system OS
  • Android 2.3 (Gingerbread)
  • Microsoft Windows Mobile 5.0 PocketPC
Chipset
  • Mediatek MT6513
Unknown
Headphone jack
  • Yes
  • No
Display
Display — specifications for A45, XDA Atom.
SpecificationA45XDA Atom
Touchscreen
  • capacitive touchscreen
  • resistive touchscreen
Screen area
  • 36.5 cm2
  • 22.6 cm2
Screen format
  • 3:2 (height:width)
  • 4:3 (height:width)
Screen to body ratio
  • 50.3%
  • 38.2%
PPI /points per inch/
  • 165 PPI
  • 148 PPI
Camera and Video
Camera and Video — specifications for A45, XDA Atom.
SpecificationA45XDA Atom
Rear camera, main
  • 2 MP
  • Single
  • 2 MP
  • Single
Camera specs
  • 2 MP
  • 2 MP
Functions Unknown
  • LED flash
Video
  • Yes
  • Yes
Front camera, selfie
  • 0 MP,
  • 0 MP,
Performance
Performance — specifications for A45, XDA Atom.
SpecificationA45XDA Atom
Processor CPU
  • 650 MHz Cortex-A9
  • Intel PXA272 416 MHz
Graphics processor GPU
  • PowerVR SGX531
Unknown
General specs
General specs — specifications for A45, XDA Atom.
SpecificationA45XDA Atom
Release date
  • 2012
  • June
  • 2005
  • November
Colors
  • White
  • Black
  • Silver
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 70 EUR
  • 260 EUR
Battery life
  • Stand by time- Up to 167 h Talking time- Up to 4 h 30 min
  • Stand by time- Up to 150 h Talking time- Up to 5 h 30 min
Communication and Connectivity
Communication and Connectivity — specifications for A45, XDA Atom.
SpecificationA45XDA Atom
SIM card
  • Dual SIM (Mini-SIM)
  • Mini-SIM
GPRS
  • Class 12
  • Class 10
Edge
  • Yes
  • Class 10
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi 802.11b
GPS
  • No
  • No
USB
  • microUSB 2.0
  • miniUSB
Bluetooth
  • 2.0
  • A2DP
  • 1.2
Harmful irradiation
  • SAR - 0.86 W/kg (head) 0.67 W/kg (body)
Unknown
Music and Audio
Music and Audio — specifications for A45, XDA Atom.
SpecificationA45XDA Atom
Radio
  • Stereo FM radio
  • FM radio
Others Unknown
  • Handwriting recognition
Other features
Other features — specifications for A45, XDA Atom.
SpecificationA45XDA Atom
Dop
  • MP3/WAV/AAC+ player -MP4/H.264/WMV player -Document viewer -Photo viewer -Organizer -Voice memo/dial -Predictive text input
  • Infrared port - Pocket Office -MP3/AAC/AAC+/WMA/OGG/AMR player -WMV/MP4 player - Produced by Quanta Computer. Functionally identical to HP iPAQ rw6815