Sony Ericsson owners were the happiest with their phones according to a new study released by J.D. Power and Associates. The study used data from more than 21,000 wireless phone users who have had their phones less than two years. Sony Ericsson’s highest marks came in physical design and usability.

The rankings were based on a 1,000 point scale. The industry average was 726.

1. Sony Ericsson - 745
2. LG - 735
3. Sanyo - 733
4. Motorola - 732
5. Samsung - 725
6. Nokia - 713
7. Kyocera - 711
8. UT Starcom - 707