Nokia C5-03 is equipped with 1000 mAh battery, 600 hours of standby time. In my evaluation of this phone for a period of a day, about 20 minutes of talk time plus 2 hours of Internet time, a battery is about three days. Standby capacity is good or bad to some extent, affected the use of mobile phones, mobile phone battery capacity is now common in the larger trend, the 1000 mAh battery capacity is a moderate, if the mobile phone usage is high, users still buy spare batteries would be more convenient. 

Text input function, I believe that Nokia C5-03 is still doing very good. The phone comes with handwriting, full-screen handwriting, full QWERTY keyboard and alphanumeric keypad variety of input methods, whether it is familiar with all keyboard input, handwriting input method or habit of users can be met. Input function that comes with word association makes the input more convenient and save time, the input method is relatively fast response time, in general, C5-03 easy to use SMS function. 

However, as previously proposed, as for the touch-screen phone, the stylus is not equipped with a little regret, because the choice of QWERTY keyboard and alphanumeric keyboard input when the button is not very spacious, very prone to inadvertently situation, especially for male users is concerned. And there is no stylus, using a handwriting input method is not very convenient. 

Although there is no numeric keypad, but not Nokia C5-03 dial-up trouble. As the most important and basic phone functions, this phone dial-up is also very convenient. No matter what kind of standby mode selected, you can see the standby screen number keys to quickly bring up a shortcut to find contacts and bring up the shortcut. Numeric keypad with large keys very clear and generous.