| Modes | GSM 1800
GSM 1900 GSM 850 on Z550a only (not Z550i or Z550c)
GSM 850
GSM 900 |
| Weight | 3.26 (oz) |
| Width | 87 (mm) |
| Height | 45 (mm) |
| Thickness | 20.1 (mm) |
| Form Factor | Clamshell |
| Talk Time | 5.3 (hours) |
| Standby Time | 320 (hours) |
| Display Type | LCD (Color TFT/TFD) |
| Display Resolution | 176 x 220 pixels 1.9" diagonal |
| Operating System (OS) | proprietary |
| Memory | 25 (MB) |
| Digital TTY/TDD | Yes |
| Vibrate | Yes |
| Bluetooth | Yes |
| PC Sync | Yes |
| Wi-Fi | Yes |
| Multiple Numbers per Name | Yes |
| Picture ID | Yes |
| Ringer ID | Yes |
| Custom Graphics | Yes |
| Custom Ringtones | Yes |
| Real-Music Ringers | Supported Formats: MP3, AAC |
| Flight Mode | Yes |
| Packet Data | GPRS |
| WAP / Web Browser | Access NetFront with RSS reader |
| Predictive Text Entry | Technology: T9 |
| Side Keys | volume keys on right |
| Touch Screen | with handwriting recognition |
| Email Client | POP3, IMAP4 |
| Text Messaging | 2-Way: Yes |
| Headphone Jack (3.5mm) | Yes |
| Music Format | MP3, AAC |
| Camera | Resolution: 1+ megapixel |
| Streaming Video | 3GPP |
| TV Output | Yes |
| Alarm | Yes |
| Calculator | Yes |
| Calendar | Yes |
| Speaker Phone | Yes |
| Image |  |
| Battery | LiPolymer |
| GPS / Location | E-OTD |
| Multiple Languages | Yes |
| USB | supports mass storage mode |
| Games | Yes |
| Display Backlight | LED |
| Phone Book Capacity | 510 |
| Data-Capable | Yes |
| Headset Jack (2.5 mm) | Yes |
| Voice Dialing | Yes |
| Voice Memo | cal record calls / can be set as ringtones |
| BREW | Yes |
| Display Colors | 262,144 (18-bit) |
| Polyphonic Ringtones | Chords: 40 |
| EMS / Picture Messaging | Yes |
| Ruggedized | Yes |
| Text Messaging Templates | Yes |
| Push-To-Talk | Some versions only |
| Java (J2ME) | Version: MIDP 2.0 |
| External Display | monochrome LCD / 128 x 36 pixels / 1.1 inches |
| Changeable Faceplates | Yes |
| MMS | Yes |
| Video Capture | Yes |
| Flashlight | Yes |
| Memory Card Slot | Card Type: M2 (Memory Stick Micro) up to 1 GB |
| Call Screening | Yes |
| To-Do List | Yes |
| Processor | 200 MHz Intel XScale |
| Infrared (IR) | Yes |
| SDIO | Yes |
| Integrated PDA | OS: UIQ (Symbian) |
| Text Keyboard | Layout: QWERTY |
| Ringer Profiles | Yes |
| FM Radio | supports RDS |
| UMA | using Wi-Fi |
| Hearing Aid Compatible | Rating: M3 (mostly compatible) |
| Stereo Speakers | Yes |
| SyncML | Yes |
| Video Sharing | Yes |
| FM Transmitter | Yes |
| PictBridge | Yes |
| Key Lock Switch | Some versions only located on right side / W710, Z710 only |
| Live TV | Technology: MediaFLO |
| ECML / Digital Wallet | Yes |
| GAIT | Yes |
| Hard Drive | Size: 3 GB 4GB on i300x variant |