Amoi E850 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

    E850: 12 g lighter

    E850:
    108 g
    A728:
    120 g
  • Width

    A728: 1 mm narrower

    E850:
    54 mm
    A728:
    53 mm
  • Depth

    E850: 1 mm thinner

    E850:
    20 mm
    A728:
    21 mm
  • Release year

    E850:
    2006
    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. E850

    Height:
    102 mm
    Width:
    54 mm +1 mm versus A728
    Depth:
    20 mm
  2. 2. A728

    Height:
    101 mm
    Width:
    53 mm
    Depth:
    21 mm +1 mm versus E850

Weight

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

  1. 1. E850

    108 g

  2. 2. A728

    120 g

    +12 g versus E850

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. E850

    E850: Screen geometry unavailable or conflicting.

  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.

E850: Original memory entry

64 MB RAM · 128 MB ROM

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. E850

NFC:
See details Super AMOLED
Headphone jack:
See details panorama
Memory card support:
See details microSD (dedicated slot)

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. E8502. A728

Everyday essentials
Everyday essentials — specifications for E850, A728.
SpecificationE850A728
Dimensions (HxWxD)
  • 102 Х 54 Х 20 mm
  • 101 Х 53 Х 21 mm
Weight
  • 108 g
  • 120 g
Technology
  • TFT
  • TFT
Screen size
  • 2.4" inch
  • 0" inch
Screen resolution
  • 204 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.
  • 64 MB RAM
  • 128 MB ROM
  • 8 MB
Memory card support
  • microSD (dedicated slot)
  • No
Battery Capacity is not battery life. No endurance test is implied.
  • 1100 mAh
  • Removable Li-Ion
  • 0 mAh,
Operating system OS
  • Microsoft Windows Mobile 5.0 for PocketPC Phone Edition
  • Linux
NFC
  • Super AMOLED
Unknown
Headphone jack
  • panorama
  • No
Display
Display — specifications for E850, A728.
SpecificationE850A728
Touchscreen
  • resistive touchscreen
  • resistive touchscreen
Display colors
  • Super AMOLED
  • 65K
Screen area
  • 16.8 cm2
Unknown
Screen format
  • 16:9 (height:width)
  • 4:3 (height:width)
Screen to body ratio
  • 130.6 g
Unknown
PPI /points per inch/
  • 0 PPI
  • 0 PPI
Camera and Video
Camera and Video — specifications for E850, A728.
SpecificationE850A728
Rear camera, main
  • 2 MP
  • Single
  • 0.3 MP
  • Single
Camera specs
  • 2 MP
Unknown
Functions
  • Dual-LED flash
Unknown
Video
  • Yes
  • Yes
Front camera, selfie
  • 0 MP,
  • 0 MP,
Specifications
  • Super AMOLED
Unknown
Performance
Performance — specifications for E850, A728.
SpecificationE850A728
Processor CPU
  • Intel XScale PXA 272 312 MHz
Unknown
General specs
General specs — specifications for E850, A728.
SpecificationE850A728
Release date
  • 2006
  • Q2
  • 2005
  • July
Colors
  • Black
  • Mr. black
Battery life
  • Stand by time- Up to 150 h Talking time- Up to 4 h
Unknown
Communication and Connectivity
Communication and Connectivity — specifications for E850, A728.
SpecificationE850A728
SIM card
  • Single SIM (Mini-SIM)Dual SIM (Mini-SIM/Micro-SIM
  • Mini-SIM
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2-3G - HSDPA 900 / 2100-4G - LTE
Unknown
Speed
  • Super AMOLED
Unknown
GPRS
  • Class 10
  • Class 8
Edge
  • panorama
  • No
Wi-Fi
  • panorama
  • No
GPS
  • panorama
  • No
USB
  • HSPA 21.1/5.76 Mbps
  • Proprietary
Bluetooth
  • Quad-core 1.25 GHz Cortex-A53
  • Yes
Music and Audio
Music and Audio — specifications for E850, A728.
SpecificationE850A728
Radio
  • panorama
  • No
Others
  • Handwriting recognition
  • Handwriting and speech recognition (Chi & Eng)
Other features
Other features — specifications for E850, A728.
SpecificationE850A728
Dop
  • Super AMOLED
  • Infrared port - Pocket Office -Media player -PC Sync -Voice memo -Organizer -World Time
  • Infrared port - MP3 player -Organizer -Voice dial/memo