Spesifikasi Sony Ericsson Z558i
| GENERAL | Network | 2G GSM 900 / 1800 / 1900 |
| LAYAR | Tipe | TFT resistive touchscreen, 256K colors |
| Ukuran | 176 x 220 pixels, 1.9 inches - Handwriting recognition - Second external STN, mono display (128 x 36 pixels) - Wallpapers, screensavers | |
| DIMENSI | Ukuran/Berat | 87.5 x 45.5 x 20.5 mm / 93 g |
| AUDIO | Fitur | Vibration Downloadable polyphonic, MP3, AAC ringtones |
| Jack | - | |
| Speakerphone | Ya | |
| MEMORY | Internal | 18 MB |
| Eksternal | Memory Stick Micro (M2), up to 2GB | |
| DATA | 3G | - |
| EDGE | - | |
| GPRS | Class 10 (4+1/3+2 slots), 32 - 48 kbps | |
| WLAN | - | |
| Bluetooth | Ya | |
| Infrared | - | |
| USB/Port | USB v2.0 | |
| KAMERA | Primer | 1.3 MP, 1280 x 1024 pixels |
| Sekunder | - | |
| Video Record | Yes, QCIF | |
| BATERAI | Tipe | Standard battery, Li-Ion |
| Standby | Up to 320 h | |
| Talk Time | Up to 5 h 15 min | |
| FITUR | OS | - |
| CPU | - | |
| Browser | WAP 2.0/HTML (NetFront), RSS reader | |
| GPS | - | |
| Messaging | SMS, MMS, Email | |
| Java | Ya, MIDP 2.0 | |
| FITUR LAIN | Multiple SIM | Tidak |
| Video Player | 3GP, MP4 | |
| MP3 Player | MP3, | |
| Audio Record | Ya | |
| TV | Tidak |
