Motorola A728 vs O2 XDA Stellar

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

    A728: 70 g lighter

    A728:
    120 g
    XDA Stellar:
    190 g
  • Width

    A728: 6 mm narrower

    A728:
    53 mm
    XDA Stellar:
    59 mm
  • Depth

    XDA Stellar: 2.4 mm thinner

    A728:
    21 mm
    XDA Stellar:
    18.6 mm
  • Height

    A728: 11 mm shorter

    A728:
    101 mm
    XDA Stellar:
    112 mm
  • Release year

    A728:
    2005
    XDA Stellar:
    2007

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. A728

    Height:
    101 mm
    Width:
    53 mm
    Depth:
    21 mm +2.4 mm versus XDA Stellar
  2. 2. XDA Stellar

    Height:
    112 mm +11 mm versus A728
    Width:
    59 mm +6 mm versus A728
    Depth:
    18.6 mm

Weight

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

  1. 1. A728

    120 g

  2. 2. XDA Stellar

    190 g

    +70 g versus A728

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.

At least two phones need compatible screen dimensions for a drawing.

  1. 1. A728

    A728: Screen geometry unavailable or conflicting.

  2. 2. XDA Stellar

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

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.

A728: Original memory entry

8 MB

XDA Stellar: Original memory entry

128 MB RAM · 256 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. A728

NFC:
Unknown
Headphone jack:
No
Memory card support:
No

2. XDA Stellar

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

Battery capacity

Capacity is not battery life. No endurance test is implied.

At least two unambiguous positive capacity values are needed for a chart. Original entries remain in the specifications.

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. A7282. XDA Stellar

Everyday essentials
Everyday essentials — specifications for A728, XDA Stellar.
SpecificationA728XDA Stellar
Dimensions (HxWxD)
  • 101 Х 53 Х 21 mm
  • 112 Х 59 Х 18.6 mm
Weight
  • 120 g
  • 190 g
Technology
  • TFT
  • TFT
Screen size
  • 0" inch
  • 2.8" inch
Screen resolution
  • 240 x 320 px
  • 240 x 320 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 8 MB
  • 128 MB RAM
  • 256 MB ROM
Memory card support
  • No
  • microSD
Battery Capacity is not battery life. No endurance test is implied.
  • 0 mAh,
  • 1350 mAh
  • Removable Li-Ion
Operating system OS
  • Linux
  • Microsoft Windows Mobile 6.0 Professional
Chipset Unknown
  • Qualcomm MSM7200
Headphone jack
  • No
  • No
Display
Display — specifications for A728, XDA Stellar.
SpecificationA728XDA Stellar
Touchscreen
  • resistive touchscreen
  • resistive touchscreen
Display colors
  • 65K
  • 65K
Screen area Unknown
  • 24.3 cm2
Screen format
  • 4:3 (height:width)
  • 4:3 (height:width)
Screen to body ratio Unknown
  • 36.7%
PPI /points per inch/
  • 0 PPI
  • 143 PPI
Camera and Video
Camera and Video — specifications for A728, XDA Stellar.
SpecificationA728XDA Stellar
Rear camera, main
  • 0.3 MP
  • Single
  • 3.15 MP
  • Single
Camera specs Unknown
  • 3.15 MP
  • AF
Video
  • Yes
  • Yes
Front camera, selfie
  • 0 MP,
  • 0.3 MP
  • Single
Specifications Unknown
  • VGA videocall camera
Performance
Performance — specifications for A728, XDA Stellar.
SpecificationA728XDA Stellar
Processor CPU Unknown
  • 400 MHz ARM 11
Graphics processor GPU Unknown
  • Adreno 130
General specs
General specs — specifications for A728, XDA Stellar.
SpecificationA728XDA Stellar
Release date
  • 2005
  • July
  • 2007
  • November
Colors
  • Mr. black
  • Silver
Battery life Unknown
  • Stand by time- Up to 365 h Talking time- Up to 5 h
Communication and Connectivity
Communication and Connectivity — specifications for A728, XDA Stellar.
SpecificationA728XDA Stellar
SIM card
  • Mini-SIM
  • Mini-SIM
Network Unknown
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900
Speed Unknown
  • HSPA 3.6/0.384 Mbps
GPRS
  • Class 8
  • Class 10
Edge
  • No
  • Class 10
Wi-Fi
  • No
  • Wi-Fi 802.11b/g
GPS
  • No
  • Yes
  • with A-GPS
USB
  • Proprietary
  • 2.0
Bluetooth
  • Yes
  • 2.0
Music and Audio
Music and Audio — specifications for A728, XDA Stellar.
SpecificationA728XDA Stellar
Radio
  • No
  • No
Others
  • Handwriting and speech recognition (Chi & Eng)
  • Handwriting recognition
Other features
Other features — specifications for A728, XDA Stellar.
SpecificationA728XDA Stellar
Dop
  • Infrared port - MP3 player -Organizer -Voice dial/memo
  • Pocket Office -Business card reader -Voice memo -Media Player 10 HTC Kaiser platform