| 2G Network | GSM 900 / 1800 / 1900 - Z555i |
| | GSM 850 / 1800 / 1900 - Z555a |
| Announced | 2008, January |
| Status | Available. Released 2008, March |
| Dimensions | 95 x 49 x 16.5 mm |
| Weight | 95 g |
| Type | TFT, 256K colors |
| Size | 176 x 220 pixels, 1.9 inches (~148 ppi pixel density) |
| | - Gesture Control
- Second external OLED, mono display (128 x 36 pixels) |
| Alert types | Vibration; Downloadable polyphonic, MP3, AAC ringtones |
| Loudspeaker | Yes |
| 3.5mm jack | No |
| Card slot | Memory Stick Micro (M2), up to 8GB |
| Phonebook | 1000 x 20 fields, Photo call |
| Call records | 30 received, dialed and missed calls |
| Internal | 12 MB |
| GPRS | Class 10 (4+1/3+2 slots), 32 - 48 kbps |
| EDGE | Class 10, 236.8 kbps |
| Speed | No |
| WLAN | No |
| Bluetooth | Yes, v2.0 with A2DP |
| USB | Yes, v2.0 |
| Primary | 1.3 MP, 1280x1024 pixels |
| Video | No |
| Secondary | No |
| Messaging | SMS, EMS, MMS, Email, Instant Messaging |
| Browser | WAP 2.0/xHTML, RSS reader |
| Radio | Stereo FM radio with RDS |
| Games | Yes + downloadable |
| GPS | No |
| Java | Yes, MIDP 2.0 |
| Colors | Diamond Black, Dusted Rose |
| | - Dynamic themes
- Media player
- Shake control
- Predictive text input
- Organizer
- Voice memo |
| | Standard battery, Li-Ion 930 mAh (BST-39) |
| Stand-by | Up to 360 h |
| Talk time | Up to 8 h 20 min |
| SAR EU | 1.02 W/kg (head) |
| Price group | |
