Original original; domestic brands; domestic unlicensed.
1, the original original: the direct production by the phone manufacturer, or provide materials commissioned by a manufacturer foundry, marked above the phone brand, the best quality, the most expensive price.
2, domestic brands: data lines have their own brand, the other printed on the packaging manufacturers address and telephone, more formal, good quality and low prices. Not many such data lines, domestic data lines are generally unlicensed.
3, no license: no logo manufacturers and brands. This type of data line is divided into two categories, the first is the professional export data lines, foreigners do not need to paste Chinese brands, this line quality is very low, the price is still lower than the domestic brand line, the highest cost-effective; the second is the no-name line , The price is low, the quality is poor, we have to be careful to buy, please choose to more reputable vendors to buy there.