HP Pre 3 vs Motorola A728

Compare recorded specifications, size and practical differences.

+ Add a third phone

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: 36 g lighter

    Pre 3:
    156 g
    A728:
    120 g
  • Width

    A728: 11 mm narrower

    Pre 3:
    64 mm
    A728:
    53 mm
  • Depth

    Pre 3: 5 mm thinner

    Pre 3:
    16 mm
    A728:
    21 mm
  • Height

    A728: 10 mm shorter

    Pre 3:
    111 mm
    A728:
    101 mm
  • Release year

    Pre 3:
    2011
    A728:
    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. Pre 3

    Height:
    111 mm +10 mm versus A728
    Width:
    64 mm +11 mm versus A728
    Depth:
    16 mm
  2. 2. A728

    Height:
    101 mm
    Width:
    53 mm
    Depth:
    21 mm +5 mm versus Pre 3

Weight

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

  1. 1. Pre 3

    156 g

    +36 g versus A728

  2. 2. A728

    120 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.

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

  1. 1. Pre 3

    Screen diagonal:
    3.58 in
    Aspect ratio (height:width):
    5:3
    Approximate rectangular screen area:
    36.5 cm²
  2. 2. A728

    A728: Screen geometry unavailable or conflicting.

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.

Pre 3: Original memory entry

8 GB · 512 MB RAM

A728: Original memory entry

8 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. Pre 3

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

2. A728

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

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. Pre 32. A728

Everyday essentials
Everyday essentials — specifications for Pre 3, A728.
SpecificationPre 3A728
Dimensions (HxWxD)
  • 111 Х 64 Х 16 mm
  • 101 Х 53 Х 21 mm
Weight
  • 156 g
  • 120 g
Technology
  • TFT
  • TFT
Screen size
  • 3.58" inch
  • 0" inch
Screen resolution
  • 480 x 800 px
  • 240 x 320 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 8 GB
  • 512 MB RAM
  • 8 MB
Memory card support
  • No
  • No
Battery Capacity is not battery life. No endurance test is implied.
  • 1230 mAh
  • Removable Li-Ion
  • 0 mAh,
Operating system OS
  • HP webOS 2.2
  • Linux
Chipset
  • Qualcomm MSM8255 Snapdragon S2
Unknown
Headphone jack
  • Yes
  • No
Display
Display — specifications for Pre 3, A728.
SpecificationPre 3A728
Touchscreen
  • capacitive touchscreen
  • resistive touchscreen
Display colors
  • 16M
  • 65K
Screen area
  • 36.5 cm2
Unknown
Screen format
  • 5:3 (height:width)
  • 4:3 (height:width)
Screen to body ratio
  • 51.4%
Unknown
PPI /points per inch/
  • 261 PPI
  • 0 PPI
Camera and Video
Camera and Video — specifications for Pre 3, A728.
SpecificationPre 3A728
Rear camera, main
  • 5 MP
  • Single
  • 0.3 MP
  • Single
Camera specs
  • 5 MP
  • AF
Unknown
Functions
  • LED flash
Unknown
Video
  • 720p
  • Yes
Front camera, selfie
  • 0.3 MP
  • Single
  • 0 MP,
Specifications
  • VGA
Unknown
Performance
Performance — specifications for Pre 3, A728.
SpecificationPre 3A728
Processor CPU
  • 1.4 GHz Scorpion
Unknown
Graphics processor GPU
  • Adreno 205
Unknown
General specs
General specs — specifications for Pre 3, A728.
SpecificationPre 3A728
Release date
  • 2011
  • February
  • 2005
  • July
Colors
  • Black
  • Mr. black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 350 EUR
Unknown
Battery life
  • Stand by time- Up to 300 h Talking time- Up to 5 h
Unknown
Communication and Connectivity
Communication and Connectivity — specifications for Pre 3, A728.
SpecificationPre 3A728
SIM card
  • Mini-SIM
  • Mini-SIM
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900
Unknown
Speed
  • HSPA 7.2/5.76 Mbps
Unknown
GPRS
  • Yes
  • Class 8
Edge
  • Yes
  • No
Wi-Fi
  • Wi-Fi 802.11 a/b/g/n
  • dual-band
  • No
GPS
  • Yes
  • with A-GPS
  • No
USB
  • microUSB 2.0
  • Proprietary
Bluetooth
  • 2.1
  • A2DP
  • EDR
  • Yes
Music and Audio
Music and Audio — specifications for Pre 3, A728.
SpecificationPre 3A728
Radio
  • No
  • No
Others
  • Active noise cancellation with dedicated mic
  • Handwriting and speech recognition (Chi & Eng)
Other features
Other features — specifications for Pre 3, A728.
SpecificationPre 3A728
Dop
  • Sensors Accelerometer
  • proximity
  • compass - MP3/WAV/eAAC+ player -MP4/H.264 player -Organizer -Document viewer -Voice memo/dial -Predictive text input
  • Infrared port - MP3 player -Organizer -Voice dial/memo