i-mate JAM Black vs Motorola Photon 4G MB855

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.

  • Width

    JAM Black: 8.9 mm narrower

    JAM Black:
    58 mm
    Photon 4G MB855:
    66.9 mm
  • Screen diagonal

    JAM Black: 1.5 in smaller diagonal

    JAM Black:
    2.8 in
    Photon 4G MB855:
    4.3 in
  • Depth

    Photon 4G MB855: 5.8 mm thinner

    JAM Black:
    18 mm
    Photon 4G MB855:
    12.2 mm
  • Height

    JAM Black: 18.9 mm shorter

    JAM Black:
    108 mm
    Photon 4G MB855:
    126.9 mm
  • Release year

    JAM Black:
    2005
    Photon 4G MB855:
    2011

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. JAM Black

    Height:
    108 mm
    Width:
    58 mm
    Depth:
    18 mm +5.8 mm versus Photon 4G MB855
  2. 2. Photon 4G MB855

    Height:
    126.9 mm +18.9 mm versus JAM Black
    Width:
    66.9 mm +8.9 mm versus JAM Black
    Depth:
    12.2 mm

Weight

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

  1. 1. JAM Black

    160 g

    +2 g versus Photon 4G MB855

  2. 2. Photon 4G MB855

    158 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. JAM Black

    Screen diagonal:
    2.8 in
    Aspect ratio (height:width):
    4:3
    Approximate rectangular screen area:
    24.3 cm²
  2. 2. Photon 4G MB855

    Screen diagonal:
    4.3 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    51 cm²

Photon 4G MB855 has approximately 109.9% more rectangular screen area than JAM Black.

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.

Recorded RAM for JAM Black, Photon 4G MB855, compared at the same storage capacity.
StorageJAM BlackPhoton 4G MB855
16 GB Unknown 1 GB RAM
JAM Black: Original memory entry

128 MB RAM · 64 MB ROM

Practical features

Explicit Yes and No values are shown directly. Qualified or regional records retain their details. Unknown means the record is missing.

1. JAM Black

NFC:
Unknown
Headphone jack:
No
Memory card support:
See details SDIO/MMC

2. Photon 4G MB855

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.

Recorded battery capacity

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

  1. 1. JAM Black

    1200 mAh

  2. 2. Photon 4G MB855

    1700 mAh

    +500 mAh versus JAM Black

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. JAM Black2. Photon 4G MB855

Everyday essentials
Everyday essentials — specifications for JAM Black, Photon 4G MB855.
SpecificationJAM BlackPhoton 4G MB855
Dimensions (HxWxD)
  • 108 Х 58 Х 18 mm
  • 126.9 Х 66.9 Х 12.2 mm
Weight
  • 160 g
  • 158 g
Technology
  • TFT
  • TFT
Screen size
  • 2.8" inch
  • 4.3" inch
Screen resolution
  • 240 x 320 px
  • 540 x 960 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 128 MB RAM
  • 64 MB ROM
  • 16 GB
  • 1 GB RAM
Memory card support
  • SDIO/MMC
  • microSD
  • up to 32 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1200 mAh
  • Removable Li-Po
  • 1700 mAh
  • Removable Li-Ion
Operating system OS
  • Microsoft Windows Mobile 2003 SE PocketPC
  • Android 2.3 (Gingerbread)
  • not upgradable to 4.1 (Jelly Bean)
Chipset Unknown
  • Nvidia Tegra 2 AP20H
Headphone jack
  • No
  • Yes
Display
Display — specifications for JAM Black, Photon 4G MB855.
SpecificationJAM BlackPhoton 4G MB855
Touchscreen
  • resistive touchscreen
  • capacitive touchscreen
Display colors
  • 65K
  • 16M
Screen area
  • 24.3 cm2
  • 51.0 cm2
Screen format
  • 4:3 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 38.8%
  • 60.0%
PPI /points per inch/
  • 143 PPI
  • 256 PPI
Screen protection Unknown
  • Corning Gorilla Glass
Camera and Video
Camera and Video — specifications for JAM Black, Photon 4G MB855.
SpecificationJAM BlackPhoton 4G MB855
Rear camera, main
  • 1.3 MP
  • Single
  • 8 MP
  • Single
Camera specs
  • 1.3 MP
  • 8 MP
  • AF
Functions Unknown
  • Dual-LED flash
Video
  • Yes
  • 720p@30fps
Front camera, selfie
  • 0 MP,
  • 0.3 MP
  • Single
Specifications Unknown
  • VGA
Performance
Performance — specifications for JAM Black, Photon 4G MB855.
SpecificationJAM BlackPhoton 4G MB855
Processor CPU
  • Intel Bulverde 416 MHz
  • Dual-core 1.0 GHz Cortex-A9
Graphics processor GPU Unknown
  • ULP GeForce
General specs
General specs — specifications for JAM Black, Photon 4G MB855.
SpecificationJAM BlackPhoton 4G MB855
Release date
  • 2005
  • Q3
  • 2011
  • June
Colors
  • Stylish black
  • Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 270 EUR
  • 270 EUR
Battery life Unknown
  • Stand by time- Up to 200 h Talking time- Up to 10 h
Communication and Connectivity
Communication and Connectivity — specifications for JAM Black, Photon 4G MB855.
SpecificationJAM BlackPhoton 4G MB855
SIM card
  • Mini-SIM
  • Mini-SIM
Network Unknown
  • Show all network frequencies: -2G - CDMA 800 / 1900 GSM 850 / 900 / 1800 / 1900
Speed Unknown
  • EV-DO Rev.A 3.1 Mbps
  • HSPA
GPRS
  • Class 10
  • Class 12
Edge
  • No
  • Class 12
Wi-Fi
  • No
  • Wi-Fi 802.11 b/g/n
  • DLNA
  • hotspot; WiMAX 802.16 e
GPS
  • No
  • Yes
  • with A-GPS
USB
  • Proprietary
  • microUSB 2.0
Bluetooth
  • 1.2
  • 2.1
  • A2DP
  • EDR
Harmful irradiation Unknown
  • SAR - 0.93 W/kg (head) 0.91 W/kg (body)
Music and Audio
Music and Audio — specifications for JAM Black, Photon 4G MB855.
SpecificationJAM BlackPhoton 4G MB855
Radio
  • No
  • Stereo FM radio
  • RDS
Others
  • Handwriting recognition
  • Active noise cancellation with dedicated mic
Other features
Other features — specifications for JAM Black, Photon 4G MB855.
SpecificationJAM BlackPhoton 4G MB855
Dop
  • Infrared port - Pocket Office -Voice memo -MP3/AAC player -Predictive text input - Produced by HTC. Functionally identical to Qtek S110
  • T-Mobile MDA Compact II.
  • Sensors Accelerometer
  • proximity
  • compass - HDMI port -MP3/WAV/WMA/AAC+ player -MP4/WMV/H.264 player -Quickoffice document viewer -Photo viewer/editor -Organizer -Voice memo/dial/commands -Predictive text input (Swype) - Built-in kickstand - Also known as Motorola ELECTRIFY