| Local Name | GT540 Optimus |
| Additional Information | Also known as LG GT540 Swift, LG Loop GT540 |
| Technology | GSM / HSPA |
| 3G Bands | HSDPA 900 / 2100 | HSDPA 850 / 2100 |
| 2G Bands | GSM 850 / 900 / 1800 / 1900 |
| Speed | HSPA 7.2/0.384 Mbps |
| GPRS | Class 10 |
| EDGE | Class 10 |
| Announced | 2010, January |
| Status | Available. Released 2010, June |
| Dimensions | 109 x 54.5 x 12.7 mm (4.29 x 2.15 x 0.5 in) |
| Weight | 115.5 g (4.06 oz) |
| SIM | Mini-SIM |
| Display Type | TFT resistive touchscreen, 256K colors (65K effective) |
| Screen Size | 3.0 inches (~45.1% screen-to-body ratio) |
| Resolution | 320 x 480 pixels (~192 ppi pixel density) |
| OS | Android OS, v1.6 (Donut), upgradable to v2.1 (Eclair) |
| CPU | 600 MHz |
| Card Slot | microSD, up to 32 GB |
| Internal Memory | 139 MB, 156 MB RAM |
| Primary Camera | 3.15 MP, 2048 x 1536 pixels, autofocus |
| Camera Features | Geo-tagging, face and blink detection |
| Video | 480p@17fps |
| Secondary Camera | No |
| Alert Types | Vibration; MP3, WAV ringtones |
| Loudspeaker | Yes |
| 3.5mm Jack | Yes |
| WLAN | Wi-Fi 802.11 b/g |
| Bluetooth | v2.1, A2DP |
| GPS | Yes, with A-GPS |
| Radio | Stereo FM radio with RDS |
| USB | microUSB |
| Sensors | Accelerometer |
| Messaging | SMS (threaded view), MMS, Email, Push Email, IM |
| Browser | HTML |
| Java | Yes, via Java MIDP emulator |
| Features Summary | MP4/DivX/Xvid/H.264/WMV player, MP3/WAV/WMA/eAAC+ player, Organizer, Document viewer, Voice memo, Predictive text input |
| Battery | Li-Ion 1500 mAh battery |
| Stand By | Up to 500 h (2G) / Up to 500 h (3G) |
| Talk Time | Up to 5 h 30 min (2G) / Up to 7 h 20 min (3G) |
| Colors | Black, White, Pink |
| SAR US | 0.93 W/kg (head) 0.63 W/kg (body) |
