Nokia 1661
| Network | 2G 3G | GSM 850 / 900 / 1800 / 1900 |
| Size | Dimensions Weight Display | 108 x 45 x 13.8 mm, 65.9 cc 82 gram TFT, 65K colors 128 x 160 pixels, 1.8 inches (~114 ppi pixel density) |
| Memory | Phonebook Call records Internal Card slot | 500 entries 20 dialed, 20 received, 20 missed calls 8 MB |
| Data | GPRS EDGE 3G WLAN Bluetooth Infrared port USB | |
| Features | OS CPU Messaging Ringtones Browser Radio GPS Games Camera Video Colors Java | SMS (up to 250) Vibration; Downloadable polyphonic ringtones FM radio, dedicated key Yes Black, grey MIDP 2.1 - Loudspeaker - Dual SIM (dual stand-by) - 2.5 mm audio jack - Flashlight - Predictive text input - Organizer - Clock - Calendar - Alarm |
| Battery | Stand-by Talk time | Standard battery, Li-Ion 860 mAh (BL-4C) Up to 475 h Up to 4 h 10 min |
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