As a clamshell/flip phone, the Krzr is longer but narrower than the Motorola Razr V3.

The K1 used the motosync system to synchronize contacts and the calendar with the touch of a button.

The phone included stylized features such as a glossy glass finish.

The exact features and technical specifications differed significantly between models.

The main difference between the two is that the K1m has touch music controls on the flip cover, a 1.3 megapixel camera, supports a microSD memory card up to 1 GB, but does not have stereo Bluetooth headphone (A2DP) capabilities, whereas, the K1 doesn't have the touch music controls, but has a better, 2.0 megapixel camera, supports a MicroSD card up to a higher 2 GB, and is A2DP capable.