| General | |
| Manufacturer: | LG |
| Model: | Optimus Chat |
| Other names: | C550 |
| Year: | 2011 |
| Operating system: | Android 2.2 |
| Measurements | |
| Dimensions (mm): (width x height x thickness) |
59 x 109 x 16.25 |
| Weight (g): | 122 |
| Processor | |
| Processor Type: | Qualcomm Snapdragon S1 MSM7227 |
| Clock Frequency (MHz): | 600 |
| Memory | |
| Random access memory (RAM) (MB): | 512 |
| Communications | |
| Phone: | GSM 1800, GSM 1900, GSM 850, GSM 900, UMTS 2100, UMTS 900 |
| Bluetooth: | 2.1 |
| Wi-Fi: | 802.11b,g |
| Other: | EDGE, GPRS, GPS, HSDPA, UMTS/WCDMA |
| Multimedia | |
| Screen Size: | 2.8 |
| Screen Resolution (px): | 240 x 320 |
| Screen type: | TFT |
| Accelerator: | Adreno 200 |
| Rear camera (Mp): | 3.2 |
| Autofocus: | Yes |
| Speaker: | mono |
| Output of earphones: | 3.5 |
| Other: | G-Sensor, Light sensor, Proximity sensor, Digital compass |
| Management and input | |
| Touchscreen: | capacitive |
| Buttons: | QWERTY-keyboard, touch buttons, physical buttons |
| Extension | |
| Memory Cards: | microSD, microSDHC |
| Connectors: | microUSB |
| Additionally |