Nokia 1661
| General | Model | 1661 |
| | Introduced | 2008 |
| | Network [MHz] | GSM 900/1800 |
| Size | Dimensions [l/w/h, mm] | 108 x 45 x 13.8 |
| | Weight (gr) | 82 |
| Battery | Battery [type/mAh] | Li-Ion 860 mAh |
| | Standby time [hours] | 475 |
| | Talk time [hours] | 4.1 |
| Display | Screen | TFT |
| | Resolution | 128 x 160 |
| | Colors | 65 K |
| | Second display | No |
| Ringtones | Type | Polyphonic |
| | Vibration | Yes |
| Memory | Operational memory | - |
| | Additonal memory | No |
| Features | Games | No |
| | Radio | No |
| | Camera | No |
| | Media player | No |
| | Video recording | No |
| | OS | No |
| | GPS | No |
| Functions | MMS | No |
| | GPRS | No |
| | EDGE | No |
| | WAP | No |
| | Wi-Fi | No |
| | Bluetooth | No |
| | Email | No |
| | HTML Browser | No |
| | Java | No |
| Comments | Addtional options | No |
