LG GT540 vs Lenovo A820
| Type | Touch | Touch |
| Dimensions | 109.00 x 54.60 x 12.70 mm | 135.00 x 68.20 x 9.90 mm |
| Weight | 115.50 g | 145.00 g |
| Display size | 3.00" | 4.50" |
| Display | Color / TFT 256k colors 320 x 480 px (3.00") 192 ppi | Color / IPS TFT 16M colors 540 x 960 px (4.50") 245 ppi |
| Display protection |   | |
| Additional display | | |
| Protection of the secondary display | | |
| Talk time (max.) | 2G: 330 min. (5.5 h) 3G: 440 min. (7.3 h) |  |
| Stand-by (max.) | 2G: 500 h. (20.8 days) 3G: 500 h. (20.8 days) | |
| Standard battery | Li-Po 1500 mAhBuy powerbank
| Li-Ion 2000 mAhBuy powerbank
|
| Quick battery charging | | |
| Wireless battery charging | | |
| Internal memory | 512 MB | 4 GB |
| End-user memory | 116 MB | |
| RAM memory | 256 MB | 1 GB |
| Memory cards |  microSD, microSDHC up to 32 GBBuy memory card | microSD, microSDHC up to 32 GBBuy memory card |
| Operating system | Android 1.6 Donut | Android 4.1.2 Jelly Bean |
| Processor | Qualcomm MSM7227 | MediaTek MT6589 |
| Processor clock | 600 MHz | 1200 MHz |
| GPU | Adreno 200 | PowerVR SGX544 MP1 @286 MHz |
| Touchscreen | | |
| SAR (10g) | | 0,368 W/kg |
| DualSIM | | |
| Hybrid DualSIM | nd | |
| Announced | 2Q 2010 | |
| Other names | Optimus; Swift | - |
| GSM frequencies | 850 900 1800 1900 | 900 1800 1900 |
| UMTS | 900 2100 | 900 2100 |
| LTE standard | | |
| CDMA | | |
| Standard TD-SCDMA | | |
| UMA | | |
CAMERAS - BACK
| First camera | | |
| Photo matrix | 3.2 Mpx | 8 Mpx |
| Resolution | 2048x1536 px | 3264x2448 px |
| Optical zoom | | |
| Digital zoom | 4x | |
| Flash | | |
| Dual-colour LED flash | | |
| Video resolution | 640x480 px | |
| Video formats | H.263, MPEG4 - 17 fps | H.263, H.264, MPEG4 |
| Additional | - | - |
CAMERAS - FRONT
SENSORS
| Accelerometer | | |
| Proximity | | |
| Light | | |
| Magnetometer | | |
| Gyroscope | | |
| Barometer | | |
| Altimeter | | |
| Gravity | | |
| Hall-effect | | |
| Iris scanner | | |
| Fingerprint scanner | | |
| Thermometer | | |
| Hygrometer | | |
Data transfer
| xHTML | | |
| WAP | v2.0 | v2.0 |
| HSCSD | | |
| HSDPA | 7.20 Mbit/s | 21.00 Mbit/s |
| HSUPA | | 5.76 Mbit/s |
| HSPA | | |
| HSPA+ | | |
| LTE DL | | |
| LTE UP | | |
| WIMAX+ | | |
| GPRS | class 12 | class 12 |
| EDGE | class 12 | |
| Bluetooth | v2.1 EDR | |
| A2DP Profile | | |
| HDMI | | |
| WiFi | v802.11 b/g | v802.11 b/g/n |
| WiFi frequencies | 2,4 GHz | 2,4 GHz |
| WiFi Direct | | |
| WiFi Display | | |
| DLNA | | |
| Miracast | | |
| WiFi hotspot | | |
| IrDA | | |
| USB | v2.0 | v2.0 |
| GPS | | |
| A-GPS | | |
| Beidou | | |
| NFC | | |
COMMUNICATION AND MESSAGING
| Call waiting | | |
| Conferency | | |
| Call forwarding | | |
| Push To Talk | | |
| Instant Messenger | | |
| SMS | | |
| EMS | | |
| MMS | v1.2 | |
| Dictionary | T9 | T9 |
| Swype | | |
| e-mail client | POP3, IMAP4, SMTP | POP3, IMAP4, SMTP |
| Hardware QWERTY keyboard | | |
| RSS Reader | | |
Multimedia
| Radio | z RDS | |
| MP3 | | |
| Stereo speakers | | |
| Audio Jack | 3.5 mm | 3.5 mm |
| HD Voice | | |
| Sound formats | AAC, AAC+, WAV, WMA, eAAC+ | AAC, AAC+, AMR, WAV, WMA, eAAC+ |
| Polyphony | | 64 voices |
| Video ringtone | | |
| Ring composer | | |
| Games | | |
| Java | Dalvik | Dalvik |
| Videophone | | |
| DVB-H television | | |
| TV-Out | | |
PIM AND ADDITIONAL FUNCTIONS
| Watch | | |
| Stopwatch | | |
| Alarm | | |
| Calculator | | |
| Currency converter | | |
| Organizer | | |
| Calendar | | |
| Flight mode | | |
| SyncML | | |
| Data and fax | | |
| Screensaver | | |
| Themes | | |
| Interchangeable covers | | |
| Voice dial | | |
| Speakerphone | | |
| Recorder | | |
| Vibrations | | |