HP IPAQ H4150 vs H2215 / H2210

i can read Chinese :) (my chinese typing skill is very slow)
Hi i don't know which one to buy... any ideas? ?


which one has better battery life?
is SD card fast? enough? or is CF much faster?
what is a fast SD card? lexar? transcend? kingmax?

i know H4150 is lighter and has wifi

but i am still interested in both. dont know which one to buy :'(


thanks :)