By looking at the image to the left, the difference between the two models becomes very clear(the front camera is missing and the flash). There are mainly 2 differences.

The first is that the LG KE990 does not have 3G connectivity, whereas the KU990 does. No 3G means no front camera in the KE990.

The second main difference is the flash. The KU990 comes with a strobe flash whereas the KE990 comes with a xenon flash.

The lack of 3G and a xenon flash makes the LG KE990 a more cheaper Viewty. The KE990 is best for those people that would like to use the excellent features and camera of the Viewty but have no use for 3G. Also in many countries of the world 3G is still not available or is very very expensive. The KE990 would be best used in such places.

Specifications:

Display: TFT touchscreen, 256K colors, 240 x 400 pixels, 3.0 inches.

Network: 2G Network: Tri-Band(GSM 900 / 1800 / 1900).

Battery: Standard battery, Li-Ion 1000 mAh, Stand by time: 430 hours, talk time: 4 hours.

Size: 103.5 x 54.4 x 14.8 mm. Weight: 112 g.

Camera: 5 MP, 2592?1944 pixels, autofocus, video(VGA 30fps, QVGA up to 120fps), xenon flash; secondary VGA videocall camera.

Features: SMS, EMS, MMS, Email, WAP 2.0/xHTML, pre-installed and download able Games.

Connectivity: GPRS: Class 10 (4+1/3+2 slots), 32 – 48 kbps, EDGE: Class 10, 236.8 kbps, Bluetooth: v1.2 with A2DP, USB: 2.0

Memory: 100 MB shared memory, microSD card slot supporting up to 2 GB card.