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Palm Centro

Feb 19, 2008
Market status

US carrier availability

Discontinued: AT&T


No pros


  • Lacks Wi-Fi
  • Slow data means slow Internet browsing (EDGE)
  • Low pixel density screen (206 ppi)
  • Single-core processor
  • Too little RAM memory (64 MB RAM)
  • It is so thick it needs a personal fitness trainer (0.73 inches inches)
  • Resistive touchscreen technology means its display is less sensitive than you would like it to be
  • Low resolution display (320 x 320 pixels)
  • Low-resolution camera (1.3 megapixels)
  • The camera lacks autofocus
  • The camera lacks flash
  • Proprietary USB connector - have to use its cable instead of a standard microUSB
  • Lacks an ambient light sensor for automatic screen brightness adjustment
  • Lacks a proximity sensor that turns the display оff during a phone call
  • No front-facing camera
  • Lacks global positioning system (GPS)




The GSM variant of the Centro has the same design as the CDMA/EV-DO version, so is one of the small Palms. It is quad-band GSM/EDGE phone with touch-sensitive display, Palm OS and featutes 1.3-megapixel camera, microSD slot and Stereo Bluetooth.

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  • Device type:
    • Smart phone
  • OS:
    • Palm OS (5.4 (Garnet))
  • Form factor:
    • Candybar
  • Dimensions:
    • 4.22 x 2.10 x 0.73 inches (107.2 x 53.5 x 18.6 mm)
  • Weight:
    • 4.23 oz (120 g)
      the average is 5.1 oz (146 g)
  • Design features:
    • Full keyboard, D-Pad, Stylus
  • Keys:
    • Left: Volume control, Other


  • Physical size:
    • 2.2 inches
  • Resolution:
    • 320 x 320 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.

    • 206 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
  • Screen-to-body ratio:
    • 27.31 %
  • Colors:
    • 65 536
  • Touchscreen:
      • Resistive


  • Camera:
      • 1.3 megapixels
    • Features:
      • Digital zoom
  • Camcorder:
      • Yes


  • Processor:

    Processor - The processor is the main computing component of a phone and is a major factor when it comes to the overall speed of the device. Some more powerful smartphones use dual-core and quad-core processors designed to deliver greater performance.

    • Single core, 312 MHz, Intel
  • System memory:

    System memory - System memory, or RAM memory is the type of memory that the device uses to temporarily store data from the OS or currently-running apps. The more RAM available to the device, the better the performance will be when multiple or heavier programs are running.

    • 64 MB RAM / 64 MB ROM
  • Storage expansion:
    • microSD


  • Talk time:
    • 4.00 hours
      the average is 13 h (796 min)
  • Stand-by time:
    • 12.5 days (300 hours)
      the average is 17 days (419 h)
  • Capacity:
    • 1150 mAh
  • Type:
    • Li - Ion


  • Music player:
    • Supported formats:
      • MP3

Internet browsing

  • Browser:
      • Blazer Web browser


  • GSM:
    • 850, 900, 1800, 1900 MHz
  • Data:
    • EDGE
  • Global Roaming:
    • Yes
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Phone features

  • Phonebook:
    • Unlimited entries, Multiple numbers per contact, Picture ID, Ring ID
  • Organizer:
    • Calculator, Notes, Alarm, To-Do, Calendar
  • Messaging:
    • SMS, Predictive text input, MMS
  • E-mail:
      • IMAP, POP3, SMTP, Microsoft Exchange, Push e-mail
  • Instant Messaging:
      • AIM, Yahoo!


  • Bluetooth:
      • 2.0
    • Profiles/ Protocols:
      • Headset (HSP), Handsfree (HFP), Dial-up networking (DUN), Object Push (OPP), Generic Access (GAP), Serial Port (SPP), Generic Audio/Video Distribution (GAVDP), Advanced Audio Distribution (A2DP), Audio/Visual Remote Control Profile (AVRCP), Audio/Video Distribution Transport Protocol (AVDTP), Audio/Video Control Transport Protocol (AVCTP)
  • USB:
      • Yes
    • Connector:
      • Proprietary
  • Headphones connector:
    • 2.5mm
  • Charging connector:
    • Proprietary
  • Other:
    • Computer sync, Infrared

Other features

  • Notifications:
    • Music ringtones (MP3), Polyphonic ringtones, Vibration, Phone profiles, Flight mode, Silent mode, Speakerphone
    • Voice dialing, Voice commands, Voice recording, Push-to-Talk

Regulatory Approval

  • FCC approval:

    FCC approval - The Federal Communications Commission (FCC) is an independent United States government agency, directly responsible to Congress. The FCC was established by the Communications Act of 1934 and is charged with regulating interstate and international communications by radio, television, wire, satellite and cable. The FCC's jurisdiction covers the 50 states, the District of Columbia, and U.S. possessions. Every wireless phone device that that is sold in the U.S. has to be tested and approved for sale by the FCC.

    • Date approved:

      Date approved - Shows the date when the particular phone is approved by the Federal Communications Commission

      • 20 Feb 2008
      • FCC ID value:

        FCC ID value - Shows the FCC Identifying value of the particular phone

        O8F-728 link
  • FCC measured SAR:

    FCC measured SAR - The exposure standard for mobile devices employs a unit of measurement known as the Specific Absorption Rate, or SAR. The SAR limit stated in the international guidelines is 2.0 W/ kg*. Tests for SAR are conducted using standard operating positions with the device transmitting at its highest certified power level in all tested frequency bands. Although the SAR is determined at the highest certified power level, the actual SAR of the device while operating can be well below the maximum value.

    • Head:
      • 0.19 W/kg
    • Measured in:
      • 1900 MHz
    • Body:
      • 0.30 W/kg
    • Measured in:
      • 1900 MHz


  • Officially announced:
    • 19 Feb 2008
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