Amoi E78 vs Motorola EM30

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

    EM30: 50 g lighter

    E78:
    150 g
    EM30:
    100 g
  • Width

    EM30: 8 mm narrower

    E78:
    61 mm
    EM30:
    53 mm
  • Screen diagonal

    EM30: 0.46 in smaller diagonal

    E78:
    2.46 in
    EM30:
    2 in
  • Depth

    EM30: 2.1 mm thinner

    E78:
    12.7 mm
    EM30:
    10.6 mm
  • Release year

    E78:
    2007
    EM30:
    2008

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. E78

    Height:
    115 mm
    Width:
    61 mm +8 mm versus EM30
    Depth:
    12.7 mm +2.1 mm versus EM30
  2. 2. EM30

    Height:
    115 mm
    Width:
    53 mm
    Depth:
    10.6 mm

Weight

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

  1. 1. E78

    150 g

    +50 g versus EM30

  2. 2. EM30

    100 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.

  1. 1. E78

    Screen diagonal:
    2.46 in
    Aspect ratio (height:width):
    4:3
    Approximate rectangular screen area:
    18.7 cm²
  2. 2. EM30

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

E78 has approximately 51.3% more rectangular screen area than EM30.

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.

E78: Original memory entry

64 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. E78

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

2. EM30

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 8 GB (dedicated slot)

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. E78

    1100 mAh

    +130 mAh versus EM30

  2. 2. EM30

    970 mAh

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. E782. EM30

Everyday essentials
Everyday essentials — specifications for E78, EM30.
SpecificationE78EM30
Dimensions (HxWxD)
  • 115 Х 61 Х 12.7 mm
  • 115 Х 53 Х 10.6 mm
Weight
  • 150 g
  • 100 g
Technology
  • TFT
  • TFT
Screen size
  • 2.46" inch
  • 2" inch
Screen resolution
  • 240 x 320 px
  • 320 x 240 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 64 MB
Unknown
Memory card support
  • microSD (dedicated slot)
  • microSD
  • up to 8 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1100 mAh
  • Removable Li-Ion
  • 970 mAh
  • Removable Li-Ion
Operating system OS
  • Microsoft Windows Mobile 5.0 PocketPC
  • Linux / Java-based MOTOMAGX
NFC
  • Super AMOLED
Unknown
Headphone jack
  • panorama
  • Yes
Display
Display — specifications for E78, EM30.
SpecificationE78EM30
Touchscreen
  • resistive touchscreen
Unknown
Display colors
  • 65K
  • 256K
Screen area
  • 18.7 cm2
  • 12.4 cm2
Screen format
  • 4:3 (height:width)
  • 4:3 (height:width)
Screen to body ratio
  • 26.7%
  • 20.3%
PPI /points per inch/
  • 163 PPI
  • 200 PPI
Camera and Video
Camera and Video — specifications for E78, EM30.
SpecificationE78EM30
Rear camera, main
  • 2 MP
  • Single
  • 2 MP
  • Single
Camera specs
  • 2 MP
  • 2 MP
Video
  • Yes
  • Yes
Front camera, selfie
  • 0 MP,
  • 0 MP,
Specifications
  • Super AMOLED
Unknown
Performance
Performance — specifications for E78, EM30.
SpecificationE78EM30
Processor CPU
  • Super AMOLED
Unknown
General specs
General specs — specifications for E78, EM30.
SpecificationE78EM30
Release date
  • 2007
  • 2008
  • August
Colors
  • Black
  • Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer. Unknown
  • 60 EUR
Battery life Unknown
  • Stand by time- Up to 300 h Talking time- Up to 6 h
Communication and Connectivity
Communication and Connectivity — specifications for E78, EM30.
SpecificationE78EM30
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
  • Yes
  • Class 12
Edge
  • Yes
  • Class 12
Wi-Fi
  • panorama
  • No
GPS
  • panorama
  • No
USB
  • panorama
  • 2.0
Bluetooth
  • Quad-core 1.25 GHz Cortex-A53
  • A2DP
  • 2.0
  • A2DP
Harmful irradiation Unknown
  • SAR - 0.60 W/kg (head) 0.71 W/kg (body) SAR EU - 0.79 W/kg (head)
Music and Audio
Music and Audio — specifications for E78, EM30.
SpecificationE78EM30
Radio
  • panorama
  • Stereo FM radio
  • RDS
Others Unknown
  • Screensavers and wallpapers -Downloadable logos
Other features
Other features — specifications for E78, EM30.
SpecificationE78EM30
Dop
  • File transfer -Organizer -Task synchronizing -Pocket Office
  • MP3/AAC player -Organizer -Voice dial -Voice memo