| Nokia Asha 501 | Nokia 1661 |
| Manufacture | Nokia | Nokia |
| Model | Asha 501 | 1661 |
| Form factor | Block | Block |
| Weight | 90.6 gram | 82.00 |
| Dimensions (HxWxD) | 99.2 x 58 x 12.1 | 108.00 x 45.00 x 14.00 |
| Operating System | Series 40 | Other |
| Networks | 2G - 850/1900 | 2G - 850/900/1800/1900 |
| HSCSD |  | |
| GPRS |  | |
| EDGE | | |
| UMTS | | |
| HSDPA | | |
| HSPA+ | | |
| WiMAX | | |
| LTE (4G light) | | |
| WLAN / Wi-Fi | | |
| Wi-Fi Hotspot | | |
| Wi-Fi Direct | | |
| SMS | | |
| MMS | | |
| | |
| HDMI out | | |
| USB port | | |
| MHL | | |
| Bluetooth | | |
| Bluetooth version | 3.0 | NA |
| DLNA | | |
| GPS | | |
| Glonass | | |
| ANT+ | | |
| IrDA | | |
| NFC | | |
| 3.5 mm audio connector | | |
| Camera | | |
| Camera resolution | 3.2 megapixel, 3x digital zoom, f/2.8 | NA |
| Image Stabilization | | |
| BSI sensor | | |
| Camera Flash/Light | | |
| Flash type | NA | NA |
| Video recording | | |
| Video capture resolution | QVGA 320x240 @15fps | NA |
| Second Camera | NA | NA |
| Display size | 3 inches | 1.80 |
| Touchscreen | | |
| Colour display | | |
| Number of colours | 262144 | 65000 |
| Display width | 240 | 128 |
| Display height | 320 | 160 |
| PPI | 133.33 | 113.83 |
| Second Display | NA | NA |
| CPU | NA | NA |
| GPU | NA | NA |
| Memory | 64 MB RAM. 128 MB internal storage. Expandable with additional 32 GB using microSD card | 8 MB |
| Micro SIM | | |
| Dual SIM | | |
| MP3 | | |
| Ringtones / Music file format | MP3, AAC, AAC+, AMR-NB, AMR-WB, M4A, MP4, WAV | Polyphonic |
| Java | | |
| Games | NA | Yes |
| FM Radio | | |
| Battery | 1200 mAh | 860 mAh |
| Standby time (h) | 1152 | 624 |
| Talktime (m) | 1020 | 480 |
| Wireless Charging | | |
| Browser | 2.0 XHTML, HTML 4.0 | NA |
| Calendar | | |
| Voicedialing | | |
| IP Code | NA | NA |
| Predictive text | | |
| RSS reader | | |
| Voicememo | | |
| PC Synchronization | | |
| SyncML | | |
| Website | Website | Website |