| Hardware and OS | LG Optimus Chat C550 | |
| Operating system | Android 2.2 (Froyo) | |
| Internal memory | 140 MB | |
| External memory | microSD, up to 32 GB (dedicated slot) | |
| Display | LG Optimus Chat C550 | other phones |
| Type | TFT | |
| Size | 2.8" inc | |
| Resolution | 320 x 480 px | |
| Touchscreen | touchscreen | |
| Screen-to-Body Ratio | 36.3% | |
| Display area | 23.3 cm2 | |
| Display aspect ratio | 3:2 (height:width) | |
| Pixel Density | 206 PPI | |
| Colors | 256K | |
| Connectivity | LG Optimus Chat C550 | other phones |
| 2G Network | GSM 850 / 900 / 1800 / 1900 | |
| Wi-Fi | Wi-Fi 802.11 b/g, Wi-Fi Direct, hotspot | |
| Network | GSM / HSPA | |
| SIM card | Mini-SIM | |
| Bluetooth | 2.1, A2DP, EDR | |
| Edge | Yes | |
| GPRS | Yes | |
| GPS | Yes, with A-GPS | |
| Speed | HSPA 7.2/5.76 Mbps | |
| USB | microUSB 2.0 | |
| Camera | LG Optimus Chat C550 | other phones |
| Main camera | 3.15 MP, Single | |
| Specs | 3.15 MP, AF | |
| Video | Yes | |
| Multimedia | LG Optimus Chat C550 | other phones |
| 3.5 mm Jack | Yes | |
| Radio | FM radio | |
| Design | LG Optimus Chat C550 | other phones |
| Colors | Black, silver, blue, red, pink | |
| Dimensions | 109 x 59 x 16 mm | |
| Weight | 122 g | |
| Battery | LG Optimus Chat C550 | other phones |
| Battery capacity | 1500 mAh, Removable Li-Ion | |
| Battery life | Stand by time- Up to 440 h Talking time- Up to 5 h
| |
| Other | LG Optimus Chat C550 | other phones |
| SAR | SAR - 0.49 W/kg (head), 0.39 W/kg (body), SAR EU - 0.71 W/kg (head), 1.24 W/kg (body) | |
| Release date | 2011, February | |
| Sensors | Accelerometer | |