LG KM900 Arena vs Sony Ericsson Xperia X10
| Type | Touch | Touch | Touch | Touch |
| Dimensions | 105.90 x 55.30 x 11.95 mm | 119.00 x 63.00 x 13.00 mm | 118.00 x 56.00 x 10.90 mm | 115.20 x 58.60 x 9.30 mm |
| Weight | 105.00 g | 135.00 g | 118.00 g | 137.00 g |
| Display size | 3.00" | 4.00" | 3.30" | 3.50" |
| Display | Color / TFT 16M colors 480 x 800 px (3.00") 311 ppi | Color / TFT 64k colors 480 x 854 px (4.00") 245 ppi | Color / Super AMOLED 16M colors 480 x 800 px (3.30") 283 ppi | Color / IPS TFT 16M colors 640 x 960 px (3.50") 330 ppi |
| Display protection | Corning Gorilla Glass Buy screen protector
 |  | Corning Gorilla Glass Buy screen protector
| |
| Additional display | | | | |
| Protection of the secondary display | | | | |
| Talk time (max.) | 2G: 170 min. (2.8 h) | 2G: 415 min. (6.9 h) 3G: 425 min. (7.1 h) | 2G: 840 min. (14.0 h) 3G: 420 min. (7.0 h) | 2G: 840 min. (14.0 h) 3G: 420 min. (7.0 h) |
| Stand-by (max.) | 2G: 227 h. (9.5 days) | 2G: 600 h. (25.0 days) 3G: 480 h. (20.0 days) | 2G: 600 h. (25.0 days) 3G: 500 h. (20.8 days) | 2G: 300 h. (12.5 days) 3G: 300 h. (12.5 days) |
| Standard battery | Li-Po 1000 mAhBuy powerbank
| Li-Po 1500 mAhBuy powerbank
| Li-Ion 1500 mAhBuy powerbank
| Li-Po 1420 mAhBuy powerbank
|
| Quick battery charging | | | | |
| Wireless battery charging | | | | |
| Phonebook memory |  | | 2000 places | |
| Internal memory | 8 GB | 1 GB | 2 GB, 8 GB | 32 GB |
| End-user memory | | | 1.4 GB | |
| RAM memory | 128 MB | 384 MB | 384 MB | |
| Memory cards |  microSD, microSDHC up to 32 GBBuy memory card | microSD, microSDHC up to 16 GBBuy memory card | microSD, microSDHC up to 32 GBBuy memory card | |
| Operating system | - | Android 1.6 Donut | Bada | iOS 4 |
| Interface | - | - | TouchWiz 3.0 | - |
| Processor | AMD Imageon A250 | Qualcomm QSD8250 | ARM Cortex A8 | Apple A4 |
| Processor clock | - | 1000 MHz | 1000 MHz | 1000 MHz |
| GPU | - | Adreno 200 | - | - |
| Touchscreen | | | | |
| SAR (10g) | 0,646 W/kg | 1,4 W/kg | 0,988 W/kg | 1,17 W/kg |
| DualSIM | | | | |
| SIM cards standard | | | | SingleSIM(microSIM) |
| Announced | 2Q 2009 | 1Q 2010 | 2Q 2010 | |
| Other names | - | Xperia X10a; Rachael | - | - |
| GSM frequencies | 900 1800 1900 | 850 900 1800 1900 | 850 900 1800 1900 | 850 900 1800 1900 |
| UMTS | 2100 | 850 1900 2100 | 900 2100 | 850 900 1900 2100 |
| LTE standard | | | | |
| CDMA | | | | |
| Standard TD-SCDMA | | | | |
| UMA | | | | |
CAMERAS - BACK
| First camera | | | | |
| Photo matrix | 5 Mpx | 8.1 Mpx | 5 Mpx | 5 Mpx |
| Resolution | 2592x1944 px | 3264x2448 px | 2560x1920 px | 2592x1944 px |
| Optical zoom | | | | |
| Digital zoom | | 16x | 4x | 5x |
| Flash | LED | LED | LED | LED |
| Dual-colour LED flash | | | | |
| Video resolution | 720x480 px | 800x480 px | 1280x720 px | 1280x720 px |
| Video formats | MPEG4, H.263 - 30 fps | MPEG4 - 30 fps | H.263, H.264, MPEG4 | H.263, MPEG4 - 30 fps |
| Additional | - | AF, EIS | AF | - |
CAMERAS - FRONT
| First camera | | | | |
| Photo matrix | 0.3 Mpx | nd | 0.3 Mpx | 0.3 Mpx |
| Resolution | 640x480 px | nd | 640x480 px | 640x480 px |
| Optical zoom | | nd | | |
| Flash | | nd | | |
| Dual-colour LED flash | | nd | | |
| Video formats | nd | nd | H.263, H.264, MPEG4 | H.263, MPEG4 - 30 fps |
| Additional | - | nd | - | - |
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 | v2.0 | v2.0 |
| HSCSD | | | | |
| HSDPA | 7.20 Mbit/s | 7.20 Mbit/s | 3.60 Mbit/s | 7.20 Mbit/s |
| HSUPA | | 2.00 Mbit/s | | 5.76 Mbit/s |
| HSPA | | | | |
| HSPA+ | | | | |
| LTE DL | | | | |
| LTE UP | | | | |
| WIMAX+ | | | | |
| GPRS | class 12 | class 10 | class 12 | class 10 |
| EDGE | class 10 | class 10 | class 12 | class 10 |
| Bluetooth | v2.1 EDR | v2.1 EDR | v3.0 | v2.1 EDR |
| A2DP Profile | | | | |
| HDMI | | | | |
| WiFi | v802.11 b/g | v802.11 b/g | v802.11 b/g/n | v802.11 b/g/n |
| WiFi frequencies | 2,4 GHz | 2,4 GHz | 2,4 GHz | 2,4 GHz |
| WiFi Direct | | | | |
| WiFi Display | | | | |
| DLNA | | | | |
| Miracast | | | | |
| WiFi hotspot | | | | |
| IrDA | | | | |
| USB | v2.0 | v2.0 | v2.0 | v2.0 |
| GPS | | | | |
| A-GPS | | | | |
| GLONASS | | | | |
| Beidou | | | | |
| NFC | | | | |
COMMUNICATION AND MESSAGING
| Call waiting | | | | |
| Conferency | | | | |
| Call forwarding | | | | |
| Push To Talk | | | | |
| Instant Messenger | | | | |
| SMS | | | 1000 places | |
| EMS | | | | |
| MMS | | v1.2 | v1.2 | |
| Dictionary | T9 | T9 | T9 | |
| Swype | | | | |
| e-mail client | POP3, IMAP4, SMTP | POP3, IMAP4, SMTP | POP3, IMAP4, SMTP | |
| Hardware QWERTY keyboard | | | | |
| RSS Reader | | | | |
Multimedia
| Radio | z RDS | | z RDS | |
| MP3 | | | | |
| Stereo speakers | | | | |
| Audio Jack | | 3.5 mm | 3.5 mm | 3.5 mm |
| HD Voice | | | | |
| Sound formats | | AAC, AAC+, WMA, eAAC+ | AAC, AAC+, AMR, WAV, WMA, eAAC+ | AAC, AAC+, AAX, AAX+, AIFF, WAV |
| Polyphony | 72 voices | 72 voices | 64 voices | 64 voices |
| Ring composer | | | | |
| Games | | | | |
| Java | MIDP 2.0 | Dalvik | MIDP 2.1 | |
| Videophone | | | | |
| DVB-H television | | | | |
| TV-Out | | | | |
PIM AND ADDITIONAL FUNCTIONS
| Watch | | | | |
| Stopwatch | | | | |
| Alarm | | | | |
| Calculator | | | | |
| Currency converter | | | | |
| Organizer | | | | |
| Calendar | | | | |
| Flight mode | | | | |
| SyncML | | v1.2 | v1.2 | |
| Data and fax | | | | |
| Screensaver | | | | |
| Themes | | | | |
| Interchangeable covers | | | | |
| Voice dial | | | | |
| Speakerphone | | | | |
| Recorder | | | | |
| Vibrations | | | | |