x PhoneArena is looking for new authors! To view all available positions, click here.

Sony Ericsson K550

Feb 6, 2007
Market status


  • Small dimensions (4.01 x 1.81 x 0.55 inches)


  • Slow data means slow Internet browsing (EDGE)
  • Lacks microSD slot for storage expansion
  • Lacks an ambient light sensor for automatic screen brightness adjustment




The K550 is quad-band GSM/EDGE phone from the middle level, at about half inch thickness. It has 262k color display, M2 slot for memory, and features Bluetooth with A2DP, FM radio, and music player

Do you ...?

Unlock this phone Compare


  • Form factor:
    • Candybar
  • Dimensions:
    • 4.01 x 1.81 x 0.55 inches (102 x 46 x 14 mm)
  • Weight:
    • 2.99 oz (85 g)
      the average is 5.1 oz (146 g)
  • Design features:
    • Numeric keypad, Soft keys (2)
  • Keys:
    • Left: Multimedia control; Right: Volume control, Camera shutter


  • Physical size:
    • 1.9 inches
  • Resolution:
    • 176 x 220 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.

    • 148 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:
    • 24.26 %
  • Colors:
    • 262 144


  • Camera:
      • 2 megapixels
    • Flash:
      • Yes
    • Features:
      • Autofocus, Digital zoom
  • Camcorder:
      • Yes


  • Built-in storage:
    • 0.064 GB
  • Storage expansion:
    • Memory Stick Micro (M2)


  • Talk time:
    • 7.00 hours
      the average is 13 h (796 min)
  • Stand-by time:
    • 14.6 days (350 hours)
      the average is 17 days (419 h)
  • Capacity:
    • 950 mAh
  • Type:
    • Li - Polymer


  • Music player:
    • Supported formats:
      • MP3, AAC, AAC+, WMA, WAV, RealAudio 8, M4A (Apple lossless), AMR
  • Video playback:
    • Supported formats:
      • MPEG4, H.263, H.264, WMV, 3GPP, RealVideo 8
  • Radio:
      • FM, RDS

Internet browsing

  • Browser:
    • supports:
      • XHTML, WAP 2.0


  • GSM:
    • 850, 900, 1800, 1900 MHz
  • Data:
    • EDGE
  • Global Roaming:
    • Yes
specifications continue after the ad

Phone features

  • Phonebook:
    • Caller groups, Multiple numbers per contact, Picture ID, Ring ID
  • Organizer:
    • Calculator, Timer, Stopwatch, Notes, Alarm, To-Do, Calendar
  • Messaging:
    • SMS, Predictive text input, MMS
  • E-mail:
      • IMAP, POP3, SMTP, Push e-mail
  • Instant Messaging:
      • Yes
  • 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.

      • Midp 2.0, CLDC 1.1


  • Bluetooth:
      • 2.0
    • Profiles/ Protocols:
      • Headset (HSP), Handsfree (HFP), Dial-up networking (DUN), Generic Object Exchange (GOEP), File Transfer (FTP), Object Push (OPP), Generic Access (GAP), Human Interface Device (HID), Generic Audio/Video Distribution (GAVDP), Advanced Audio Distribution (A2DP), Basic Imaging (BIP), Audio/Visual Remote Control Profile (AVRCP), Personal Area Networking Profile (PAN), Synchronization (SP)
  • USB:
      • USB 2.0
    • Features:
      • Mass storage device
  • Charging connector:
    • Proprietary
  • Other:
    • Computer sync, Infrared

Other features

  • Notifications:
    • Music ringtones (MP3), Polyphonic ringtones, Vibration, Phone profiles, Speakerphone
    • Voice recording

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

      • 15 Jan 2007
      • FCC ID value:

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

        PY7A1052021 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:
      • 1.17 W/kg
    • Measured in:
      • 1900 MHz
    • Body:
      • 0.74 W/kg
    • Measured in:
      • 1900 MHz


  • Officially announced:
    • 06 Feb 2007
Indicates that this field is show only in Full Specs mode

Despite our efforts to provide full and correct Sony Ericsson K550 specifications, there is always a possibility of making a mistake. If you see any wrong or incomplete data, please LET US KNOW.

If you are interested in using our specs commercially, check out our Phone specs database licensing page.

User circle


Had it


Had it


Had it


Had it


Had it


Had it


Have it


Had it


Had it


Had it


Had it


Had it


Had it


Had it


Had it


Had it


Had it


Have it


Had it


Had it


iPad 2 Cases

Latest stories