✔ 最佳答案
T650i --- HKD 3680-3780 3.2 mp carema, no auto focus, 12.9mm
K850i --- HKD 4680 5.0mp carema, auto focus, around 18mm
Meaning of the letter in front of the model no.:
K ---- cyber shot series
T --- simple and basic series
W --- walkman series
S --- 轉機 / 推機,, selling pt :natural
Z --- 接機