Motorola A728 vs Sony Xperia U

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

    Xperia U: 10 g lighter

    A728:
    120 g
    Xperia U:
    110 g
  • Width

    A728: 1 mm narrower

    A728:
    53 mm
    Xperia U:
    54 mm
  • Depth

    Xperia U: 9 mm thinner

    A728:
    21 mm
    Xperia U:
    12 mm
  • Height

    A728: 11 mm shorter

    A728:
    101 mm
    Xperia U:
    112 mm
  • Release year

    A728:
    2005
    Xperia U:
    2012

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 +9 mm versus Xperia U
  2. 2. Xperia U

    Height:
    112 mm +11 mm versus A728
    Width:
    54 mm +1 mm versus A728
    Depth:
    12 mm

Weight

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

  1. 1. A728

    120 g

    +10 g versus Xperia U

  2. 2. Xperia U

    110 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. A728

    A728: Screen geometry unavailable or conflicting.

  2. 2. Xperia U

    Screen diagonal:
    3.5 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    33.8 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

Xperia U: Original memory entry

8 GB (4 GB user available) · 512 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. A728

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

2. Xperia U

NFC:
Unknown
Headphone jack:
Yes
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. A7282. Xperia U

Everyday essentials
Everyday essentials — specifications for A728, Xperia U.
SpecificationA728Xperia U
Dimensions (HxWxD)
  • 101 Х 53 Х 21 mm
  • 112 Х 54 Х 12 mm
Weight
  • 120 g
  • 110 g
Technology
  • TFT
  • TFT
Screen size
  • 0" inch
  • 3.5" inch
Screen resolution
  • 240 x 320 px
  • 480 x 854 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 8 MB
  • 8 GB (4 GB user available)
  • 512 MB RAM
Memory card support
  • No
  • No
Battery Capacity is not battery life. No endurance test is implied.
  • 0 mAh,
  • 1320 mAh
  • Removable Li-Ion
Operating system OS
  • Linux
  • Android 2.3 (Gingerbread)
  • upgradable to 4.0 (Ice Cream Sandwich)
Chipset Unknown
  • NovaThor U8500
Headphone jack
  • No
  • Yes
Display
Display — specifications for A728, Xperia U.
SpecificationA728Xperia U
Touchscreen
  • resistive touchscreen
  • capacitive touchscreen
Display colors
  • 65K
  • 16M
Screen area Unknown
  • 33.8 cm2
Screen format
  • 4:3 (height:width)
  • 16:9 (height:width)
Screen to body ratio Unknown
  • 55.8%
PPI /points per inch/
  • 0 PPI
  • 280 PPI
Screen protection Unknown
  • Scratch-resistant glass
Camera and Video
Camera and Video — specifications for A728, Xperia U.
SpecificationA728Xperia U
Rear camera, main
  • 0.3 MP
  • Single
  • 5 MP
  • Single
Camera specs Unknown
  • 5 MP
  • AF
Functions Unknown
  • LED flash
  • panorama
Video
  • Yes
  • 720p@30fps
Front camera, selfie
  • 0 MP,
  • 0.3 MP
  • Single
Specifications Unknown
  • VGA
Performance

Scores marked * are historical catalogue entries. Test conditions are unspecified; no new testing is implied.

Performance — specifications for A728, Xperia U.
SpecificationA728Xperia U
Processor CPU Unknown
  • Dual-core 1.0 GHz Cortex-A9
Graphics processor GPU Unknown
  • Mali-400
Antutu 7 score * Unknown
  • 9020
GeekBench 4 Single Core * Unknown
  • 275
GeekBench 4 Multi-Core * Unknown
  • 493
General specs
General specs — specifications for A728, Xperia U.
SpecificationA728Xperia U
Release date
  • 2005
  • July
  • 2012
  • February
Colors
  • Mr. black
  • Black
  • White/ exchangeable bottom caps in white
  • Pink
  • Yellow
Historical recorded price Legacy catalogue value; date unknown. Not a current offer. Unknown
  • 140 EUR
Battery life Unknown
  • Stand by time- Up to 260 h (2G) / Up to 472 h (3G) Talking time- Up to 6 h 36 min (2G) / Up to 5 h 36 min (3G) Music play - Up to 45 h
Communication and Connectivity
Communication and Connectivity — specifications for A728, Xperia U.
SpecificationA728Xperia U
SIM card
  • Mini-SIM
  • Mini-SIM
Network Unknown
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900
Speed Unknown
  • HSPA 14.4/5.76 Mbps
GPRS
  • Class 8
  • Up to 107 kbps
Edge
  • No
  • Up to 296 kbps
Wi-Fi
  • No
  • Wi-Fi 802.11 b/g/n
  • hotspot
  • DLNA
GPS
  • No
  • Yes
  • with A-GPS
USB
  • Proprietary
  • microUSB 2.0
  • USB Host
Bluetooth
  • Yes
  • 2.1
  • A2DP
  • EDR
Harmful irradiation Unknown
  • SAR - 1.09 W/kg (head) 0.93 W/kg (body) SAR EU - 1.62 W/kg (head)
Music and Audio
Music and Audio — specifications for A728, Xperia U.
SpecificationA728Xperia U
Radio
  • No
  • Stereo FM radio
  • RDS
Others
  • Handwriting and speech recognition (Chi & Eng)
  • Sony 3D surround sound audio technology -Active noise cancellation with dedicated mic
Other features
Other features — specifications for A728, Xperia U.
SpecificationA728Xperia U
Dop
  • Infrared port - MP3 player -Organizer -Voice dial/memo
  • Sensors Accelerometer
  • proximity
  • compass - Previously known as Sony Ericsson ST25i Kumquat