| LG G Flex | LG Optimus Pro C660 |
| Manufacture | LG | LG |
| Model | G Flex | Optimus Pro C660 |
| Form factor | Block | Block |
| Weight | 177 gram | 129.00 |
| Dimensions (HxWxD) | 160.5 x 81.6 x 8.7 | 120.00 x 60.00 x 13.00 |
| Operating System | Android | Android |
| Networks | 2G - 850/900/1800/1900/2100 3G - 850/900/1800/1900/2100 | 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 | | |
| | |
| HDMI out | | |
| USB port | | |
| MHL | | |
| Bluetooth | | |
| Bluetooth version | 4.0 | NA |
| DLNA | | |
| GPS | | |
| Glonass | | |
| ANT+ | | |
| IrDA | | |
| NFC | | |
| 3.5 mm audio connector | | |
| Camera | | |
| Camera resolution | 13 megapixel, autofocus, geo tagging | 3 megapixel |
| Image Stabilization | | |
| BSI sensor | | |
| Camera Flash/Light | | |
| Flash type | NA | NA |
| Video recording | | |
| Video capture resolution | NA | NA |
| Second Camera | 2.1 megapixel | NA |
| Display size | 6 inches | 2.80 |
| Touchscreen | | |
| Colour display | | |
| Number of colours | 16777216 | 256000 |
| Display width | 720 | 240 |
| Display height | 1280 | 320 |
| PPI | 244.77 | 142.86 |
| Second Display | NA | NA |
| CPU | 2.26 GHz quad-core Qualcomm Snapdragon MSM8974 | 800 MHz ARM11 MSM7227T |
| GPU | Adreno 330 | NA |
| Memory | 2 GB RAM. 32 GB internal storage | 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 | MP3, AMR, AAC, AAC+ |
| Java | | |
| Games | NA | Yes |
| FM Radio | | |
| Battery | 3500 mAh | 1500 mAh |
| Standby time (h) | NA | NA |
| Talktime (m) | NA | NA |
| Wireless Charging | | |
| Browser | Android HTML Webkit | Android HTML Webkit |
| Calendar | | |
| Voicedialing | | |
| IP Code | NA | NA |
| Predictive text | | |
| RSS reader | | |
| Voicememo | | |
| PC Synchronization | | |
| SyncML | | NA |
| Website | Website | Website |