Please recommend a smart phone with good cost performance.

Recommend Nokia 5230, a smart phone with a straight touch screen and a very cost-effective mobile phone. Licensed goods 1350 yuan, parallel goods 1000~ 1200 yuan. Smart phones have a lot of DIY space, and you can download a lot of software to improve the performance of mobile phones. However, the Nokia 5230 is equipped with a 2 megapixel camera, which is slightly weak. The close shot is not satisfactory, but the long shot is very good. The Internet is very fast. Generally, the standby time is 2~3 days. If you often use it to surf the Internet and play games, you can only use it for one day. You can buy another spare battery.