| Manufacture | Samsung | LG |
| Model | E2550 Monte Slide | Optimus Pro C660 |
| Form factor | Slider | Block |
| Weight | 84 gram | 129.00 |
| Dimensions (HxWxD) | 99 x 49 x 14 | 120.00 x 60.00 x 13.00 |
| Operating System | Other | Android |
| Networks | 2G - 900/1800
| 2G - 850/900/1800/1900
3G - 900/2100 |
| 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 | NA | NA |
| DLNA | | |
| GPS | | |
| Glonass | | |
| ANT+ | | |
| IrDA | | |
| NFC | | |
| 3.5 mm audio connector | | |
| Camera | | |
| Camera resolution | 1.3 megapixel, 4x digital zoom, smile recognition | 3 megapixel |
| Image Stabilization | | |
| BSI sensor | | |
| Camera Flash/Light | | |
| Flash type | NA | NA |
| Video recording | | |
| Video capture resolution | NA | NA |
| Second Camera | NA | NA |
| Display size | 2 inches | 2.80 |
| Touchscreen | | |
| Colour display | | |
| Number of colours | 262000 | 256000 |
| Display width | 128 | 240 |
| Display height | 160 | 320 |
| PPI | 102.45 | 142.86 |
| Second Display | NA | NA |
| CPU | NA | 800 MHz ARM11 MSM7227T |
| GPU | NA | NA |
| Memory | 15 MB. Expandable up to 8 GB with microSD card | 512 MB. 150 MB available to user. Expandable with microSD card. 2 GB card included |
| Micro SIM | | |
| Dual SIM | | |
| MP3 | | |
| Ringtones / Music file format | MP3, AAC, AAC+, eAAC+, WMA, WAV | MP3, AMR, AAC, AAC+ |
| Java | | |
| Games | Yes | Yes |
| FM Radio | | |
| Battery | 800 mAh | 1500 mAh |
| Standby time (h) | 550 | NA |
| Talktime (m) | 540 | NA |
| Wireless Charging | | |
| Browser | 2.0 XHTML | Android HTML Webkit |
| Calendar | | |
| Voicedialing | | |
| IP Code | NA | NA |
| Predictive text | | |
| RSS reader | | |
| Voicememo | | |
| PC Synchronization | | |
| SyncML | | NA |
| Website | Website | Website |
