Motorola MOTOROKR EM25

Motorola ROKR EM25 is a dual-band GSM slider. It features 128x160 1.8” display, 1.3MP camera, Stereo Bluetooth, microSD slot for memory and FM Radio.

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Motorola MOTOROKR EM25 specifications

Pros

  • Small dimensions (3.98 x 1.81 x 0.55 inches)

Cons

  • Low pixel densitiy screen, below 180ppi (114 ppi)
  • Low resolution display (128 x 160 pixels)
  • Lacks global positioning system (GPS)
  • Low-resolution camera (1.3 megapixels)
  • The camera lacks autofocus
  • Lacks an ambient light sensor for automatic screen brightness adjustment

Design

  • Form factor:

    Form factor - Refers to the form factor of a phone. The main handset designs are bar, clamshell, slide, swivel

    • Slider
  • Dimensions:
    • 3.98 x 1.81 x 0.55 (101 x 46 x 13.9 mm)
  • Weight:
    • 3.00 oz (85 g)
      the average is 4.2 oz (120 g)
  • Design features:
    • Numeric keypad, Soft keys (2)
  • Side Keys:

    Side Keys - Buttons on the side of the phone, designed to be used by fingertips while holding the phone - one-handed operation.

    • Left: Volume control

Display

  • Physical size:
    • 1.80 inches
  • Resolution:
    • 128 x 160 pixels
  • Pixel density:

    Pixel density - The pixel density of a display represents the number of pixels over an area of one inch. It’s measured in “pixels per inch”, or ppi. The higher the number, the more detailed and good-looking the display is.

    • 114 ppi
  • Technology:

    Technology - There are two main screen technologies currently used in phones and tablets: LCD and AMOLED. The former usually features a light source and liquid crystals, while the latter is based on organic light-emitting diodes. Newer LCD variations like IPS-LCD and Super-LCD allow for very accurate color reproduction and very wide viewing angles, where no significant image quality loss is observed. Current AMOLED screens differ in such a way that they can exhibit much more saturated colors (sometimes too much) and incredibly high contrast levels, which is due to black color being completely black in AMOLED displays.

    • TFT
  • Colors:

    Colors - Shows the number of colors that the display supports

    • 65 536

Battery

  • Talk time:

    Talk time - Maximum talk time in hours

    • 8.15 hours
      the average is 8 h (496 min)
  • Stand-by time:
    • 13.8 days (330 hours)
      the average is 21 days (496 h)
  • Capacity:
    • 780 mAh
  • Type:
    • Li - Ion

Hardware

  • Built-in storage:
    • 5 MB
  • Storage expansion:
    • Slot Type:
      • microSD

Camera

  • Camera:
      • 1.3 megapixels, Immobile
    • Features:
      • Digital zoom

Multimedia

  • Music player:
    • Supported formats:
      • MP3, AAC, WAV, AMR
  • Radio:
      • FM, RDS

Internet browsing

  • Browser:
      • Yes

Technology

  • GSM:

    GSM - Global System for Mobile communications. A world standard for digital cellular communications using narrowband TDMA (Time Division Multiple Access), which allows up to eight calls at a time on 800 MHz and 1800 MHz frequencies. Introduced in 1991. Is the standard most commonly used in Europe and Asia, but not in the United States. GSM phones use a Subscriber Identity Module (SIM) smart card that contains user account information. Any GSM phone becomes immediately programmed after plugging in the SIM card, thus allowing GSM phones to be easily rented or borrowed.

    • 850, 1900 MHz
    • Other version supports GSM 900/1800 MHz
  • Data:

    Data - Shows the particular phone's type of data. the major mobile phone data types are GPRS, CDMA2000 1xRTT, EDGE, CDMA2000 1xEV-DO, UMTS, etc.

    • GPRS

Phone features

  • Phonebook:
    • 1000 entries, Caller groups, Multiple numbers per contact, Picture ID, Ring ID
  • Organizer:
    • Calendar, Alarm, Calculator
  • Messaging:
    • SMS, MMS, Predictive text input
  • JAVA:

    JAVA - J2ME (Java 2 Platform, Micro Edition) is a technology that allows programmers to use the Java programming language and related tools to develop programs for mobile wireless information devices such as cellular phones and personal digital assistants (PDAs). J2ME consists of programming specifications and a special virtual machine, the K Virtual Machine, that allows a J2ME-encoded program to run in the mobile device.

      • Yes
  • Games:
      • Yes

Connectivity

  • Bluetooth:
      • 2.0
    • Profiles:
      • Advanced Audio Distribution (A2DP), Audio/Video Control Transport Protocol (AVCTP), Audio/Visual Remote Control Profile (AVRCP), Basic Imaging (BIP), File Transfer (FTP), Generic Access (GAP), Generic Audio/Video Distribution (GAVDP), Handsfree (HFP), Headset (HSP), Object Push (OPP), Serial Port (SPP), Service Discovery Application (SDAP)
  • USB:
      • USB 2.0
    • Connector:
      • miniUSB
  • Headphones connector:
    • 3.5mm

Other features

  • Notifications:
    • Polyphonic ringtones, Vibration, Phone profiles, Speakerphone
    • Voice recording

Availability

  • Officially announced:
    • 05 Aug 2008
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