| Manufacture | Nokia | Nokia |
| Model | Lumia 620 | 6303i Classic |
| Form factor | Block | Block |
| Weight | 127 gram | 96.00 |
| Dimensions (HxWxD) | 115.4 x 61.1 x 11.02 | 109.00 x 46.00 x 12.00 |
| Operating System | Windows Phone 8 | Series 40 |
| Networks | 2G - 850/900/1800/1900
3G - 850/900/1900/2100 | 2G - 900/1800/1900
|
| HSCSD |  | |
| GPRS |  | |
| EDGE | | |
| UMTS | | |
| HSDPA | | |
| HSPA+ | | |
| WiMAX | | |
| LTE (4G light) | | |
| WLAN / Wi-Fi | | |
| Wi-Fi Hotspot | | |
| Wi-Fi Direct | | |
| SMS | | |
| MMS | | |
| Email | | |
| 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 | 5 megapixel, autofocus, 4x digital zoom, f/2.4, 28mm | 3.2 megapixel, 4x digital zoom |
| Image Stabilization | | |
| BSI sensor | | |
| Camera Flash/Light | | |
| Flash type | LED | NA |
| Video recording | | |
| Video capture resolution | 720p | NA |
| Second Camera | VGA (640 x 480) | NA |
| Display size | 3.8 inches | 2.20 |
| Touchscreen | | |
| Colour display | | |
| Number of colours | 16000000 | 16000000 |
| Display width | 480 | 240 |
| Display height | 800 | 320 |
| PPI | 245.51 | 181.82 |
| Second Display | NA | NA |
| CPU | 1 GHz dual-core Qualcomm Snapdragon S4 | NA |
| GPU | NA | NA |
| Memory | 512 MB RAM. 8 GB internal storage. Expandable up to 64GB using microSD card | 55 MB. Expandable up to 8 GB with microSD card |
| Micro SIM | | |
| Dual SIM | | |
| MP3 | | |
| Ringtones / Music file format | MP3, AAC, AAC+, eAAC+, WMA, AMR-WB, AMR-NB | MP3, WMA, WAV, NB-AMR, WB-AMR, MIDI, AAC, AAC+, eAAC+ |
| Java | | |
| Games | NA | Yes. 8 |
| FM Radio | | |
| Battery | 1300 mAh | 1050 mAh |
| Standby time (h) | 330 | 515 |
| Talktime (m) | 846 | 480 |
| Wireless Charging | | |
| Browser | Internet Explorer 10 | 2.0 XHTML, HTML. Nokia OSS web browser. Opera Mini |
| Calendar | | |
| Voicedialing | | |
| IP Code | NA | NA |
| Predictive text | | |
| RSS reader | | |
| Voicememo | | |
| PC Synchronization | | |
| SyncML | | |
| Website | Website | Website |
