Kyocera Koi KX2
Kyocera Koi KX2 vs.vx 8100
1) it has bluetooth
2) mp3 player
3) free wap config is very easy
4) Kx2 opening is difficult with one hand (specially when driving)
5)adding more ringtones and mp3s are easy with bitpim through bluetooth. (for Kx2 you need data cable)
and much more....