LG U400 vs LG KE600
| Type | Slide | Slide |
| Dimensions | 99.80 x 48.00 x 20.40 mm | 97.00 x 46.00 x 18.90 mm |
| Weight | 90.00 g | 90.00 g |
| Display size | - | 2.00" |
| Display | Color / TFT 256k colors 240 x 320 px | Color / TFT 256k colors 240 x 320 px (2.00") 200 ppi |
| Display protection |   | |
| Additional display | | |
| Protection of the secondary display | | |
| Talk time (max.) |  | 2G: 210 min. (3.5 h) |
| Stand-by (max.) | | 2G: 220 h. (9.2 days) |
| Standard battery | | Li-Ion 950 mAhBuy powerbank
|
| Quick battery charging | | |
| Wireless battery charging | | |
| Phonebook memory | | 1000 places |
| Internal memory | 70 MB | 65 MB |
| Memory cards |  microSD | microSD |
| Touchscreen | | |
| DualSIM | | |
| Announced | | 4Q 2006 |
| Other names | - | - |
| GSM frequencies | 900 1800 1900 | 900 1800 1900 |
| UMTS | 2100 | |
| LTE standard | | |
| CDMA | | |
| Standard TD-SCDMA | | |
| UMA | | |
CAMERAS - BACK
| First camera | | |
| Photo matrix | 2 Mpx | 2 Mpx |
| Resolution | 1600x1200 px | 1600x1200 px |
| Optical zoom | | |
| Digital zoom | | 4x |
| Flash | LED | LED |
| Dual-colour LED flash | | |
| Video formats | MPEG4 | MPEG4 |
| Additional | - | - |
CAMERAS - FRONT
| First camera | | |
| Resolution | 640x480 px | 640x480 px |
| Optical zoom | | |
| Flash | | |
| Dual-colour LED flash | | |
| Additional | - | - |
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 | | |
| HSUPA | | |
| HSPA | | |
| HSPA+ | | |
| LTE DL | | |
| LTE UP | | |
| WIMAX+ | | |
| GPRS | class 10 | class 10 |
| EDGE | | class 10 |
| Bluetooth | v2.0 | v2.0 |
| A2DP Profile | | |
| HDMI | | |
| WiFi | | |
| WiFi frequencies | | |
| WiFi Direct | | |
| WiFi Display | | |
| DLNA | | |
| Miracast | | |
| WiFi hotspot | | |
| IrDA | | |
| USB | | v2.0 |
| Beidou | | |
| NFC | | |
COMMUNICATION AND MESSAGING
| Call waiting | | |
| Conferency | | |
| Call forwarding | | |
| SMS | | |
| EMS | | |
| MMS | | |
| Dictionary | T9 | T9 |
| Swype | | |
| e-mail client | POP3, IMAP4, SMTP | POP3, IMAP4, SMTP |
| Hardware QWERTY keyboard | | |
| RSS Reader | | |
Multimedia
| Radio | | |
| MP3 | | |
| Stereo speakers | | |
| Audio Jack | | |
| HD Voice | | |
| Sound formats | AAC, AAC+, WMA | AAC, AAC+, WMA |
| Polyphony | 64 voices | 64 voices |
| Ring composer | | |
| Games | | |
| Java | MIDP 2.0 | MIDP 2.0 |
| Videophone | | |
| DVB-H television | | |
| TV-Out | | |
PIM AND ADDITIONAL FUNCTIONS
| Watch | | |
| Stopwatch | | |
| Alarm | | |
| Calculator | | |
| Organizer | | |
| Calendar | | |
| SyncML | | |
| Data and fax | | |
| Screensaver | | |
| Interchangeable covers | | |
| Voice dial | | |
| Speakerphone | | |
| Recorder | | |
| Vibrations | | |