Motorola U9 vs Samsung Epic 4G

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

    U9: 67.5 g lighter

    U9:
    87.5 g
    Epic 4G:
    155 g
  • Width

    U9: 16.4 mm narrower

    U9:
    48.6 mm
    Epic 4G:
    65 mm
  • Screen diagonal

    U9: 2 in smaller diagonal

    U9:
    2 in
    Epic 4G:
    4 in
  • Depth

    Epic 4G: 2.4 mm thinner

    U9:
    16.4 mm
    Epic 4G:
    14 mm
  • Height

    U9: 34 mm shorter

    U9:
    90 mm
    Epic 4G:
    124 mm
  • Release year

    U9:
    2007
    Epic 4G:
    2010

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. U9

    Height:
    90 mm
    Width:
    48.6 mm
    Depth:
    16.4 mm +2.4 mm versus Epic 4G
  2. 2. Epic 4G

    Height:
    124 mm +34 mm versus U9
    Width:
    65 mm +16.4 mm versus U9
    Depth:
    14 mm

Weight

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

  1. 1. U9

    87.5 g

  2. 2. Epic 4G

    155 g

    +67.5 g versus U9

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. U9

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

    Screen diagonal:
    4 in
    Aspect ratio (height:width):
    5:3
    Approximate rectangular screen area:
    45.5 cm²

Epic 4G has approximately 267.6% more rectangular screen area than U9.

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.

U9: Original memory entry

25 MB

Epic 4G: Original memory entry

512 MB · 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. U9

NFC:
Unknown
Headphone jack:
No
Memory card support:
See details microSD (dedicated slot)

2. Epic 4G

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 32 GB (dedicated slot)

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. U92. Epic 4G

Everyday essentials
Everyday essentials — specifications for U9, Epic 4G.
SpecificationU9Epic 4G
Dimensions (HxWxD)
  • 90 Х 48.6 Х 16.4 mm
  • 124 Х 65 Х 14 mm
Weight
  • 87.5 g
  • 155 g
Technology
  • TFT
  • Super AMOLED
Screen size
  • 2" inch
  • 4" inch
Screen resolution
  • 240 x 320 px
  • 480 x 800 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 25 MB
  • 512 MB
  • 512 MB RAM
Memory card support
  • microSD (dedicated slot)
  • microSD
  • up to 32 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 0 mAh,
  • 1500 mAh
  • Removable Li-Ion
Operating system OS
  • Linux / Java-based MOTOMAGX
  • Android 2.1 (Eclair)
  • upgradable to 2.2 (Froyo)
Chipset Unknown
  • Hummingbird
Headphone jack
  • No
  • Yes
Display
Display — specifications for U9, Epic 4G.
SpecificationU9Epic 4G
Touchscreen Unknown
  • capacitive touchscreen
Display colors
  • 256K
  • 16M
Screen area
  • 12.4 cm2
  • 45.5 cm2
Screen format
  • 4:3 (height:width)
  • 5:3 (height:width)
Screen to body ratio
  • 28.3%
  • 56.5%
PPI /points per inch/
  • 200 PPI
  • 233 PPI
Screen protection Unknown
  • Corning Gorilla Glass
Camera and Video
Camera and Video — specifications for U9, Epic 4G.
SpecificationU9Epic 4G
Rear camera, main
  • 2 MP
  • Single
  • 5 MP
  • Single
Camera specs
  • 2 MP
  • 5 MP
  • AF
Functions Unknown
  • LED flash
Video
  • Yes
  • 720p@30fps
Front camera, selfie
  • 0 MP,
  • 0.3 MP
  • Single
Specifications Unknown
  • VGA
Performance
Performance — specifications for U9, Epic 4G.
SpecificationU9Epic 4G
Processor CPU Unknown
  • 1.0 GHz Cortex-A8
Graphics processor GPU Unknown
  • PowerVR SGX540
General specs
General specs — specifications for U9, Epic 4G.
SpecificationU9Epic 4G
Release date
  • 2007
  • October
  • 2010
  • June
Colors
  • Pink
  • Purple
  • Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 70 EUR
  • 200 EUR
Battery life
  • Stand by time- Up to 350 h Talking time- Up to 7 h
  • Stand by time- Up to 300 h Talking time- Up to 5 h 30 min
Communication and Connectivity
Communication and Connectivity — specifications for U9, Epic 4G.
SpecificationU9Epic 4G
SIM card
  • Mini-SIM
  • Mini-SIM
Network Unknown
  • Show all network frequencies: -2G - CDMA 800 / 1900
Speed Unknown
  • HSPA
  • EV-DO Rev. A 3.1 Mbps
GPRS
  • Class 12
  • Class 10
Edge
  • Class 12
  • Class 10
Wi-Fi
  • No
  • Wi-Fi 802.11 b/g/n; WiMAX
  • hotspot (Android 2.2)
GPS
  • No
  • Yes
  • with A-GPS
USB
  • 2.0
  • microUSB 2.0
Bluetooth
  • 2.0
  • A2DP
  • 2.1
  • A2DP
Harmful irradiation
  • SAR - 1.36 W/kg (head) 0.56 W/kg (body) SAR EU - 1.02 W/kg (head)
  • SAR - 0.68 W/kg (head) 0.99 W/kg (body)
Music and Audio
Music and Audio — specifications for U9, Epic 4G.
SpecificationU9Epic 4G
Radio
  • No
  • Stereo FM radio
  • RDS
Others
  • Second external OLED
  • 65K colors display (128 x 160 pixels) -Touch sensitive music keys -Downloadable wallpapers
  • screensavers
Unknown
Other features
Other features — specifications for U9, Epic 4G.
SpecificationU9Epic 4G
Dop
  • MP3/AAC/AAC+/WMA/OGG/AMR player -WMV/MP4 player -iTap -Organizer -Voice command -Voice memo
  • Sensors Accelerometer
  • proximity
  • compass - Mobile TV -MP4/DivX/WMV/H.264 player -MP3/WAV/eAAC+/FLAC player -Organizer -Photo/video editor -Document editor -Voice memo/dial/commands -Predictive text input (Swype) - Also known as Samsung Galaxy S Pro For Sprint