I am using vivo U20 from past six months. Up till now I have not found any problem or issue in this phone. Vivo U20 has very good and clear sound quality. According to me sound quality is absolutely ok. Style and design is also best I like it specifically its color is best which I like most. Other features of this phone are best such as it has time to time device update. Vivo U20 is very easy to use its not at all complicated it is very user friendly. Vivo U20 has excellent look. I have purchased Vivo U20 smart phone from amazon.in for rupees 11, 999 only. According to me it is value for money.
Vivo U20 is excellent smart phone.