according to the information of SF official website, SF Express is a general brand, as well as express and special offers. The express delivery time limit of SF Express brand is generally between 1-3 days, and it has achieved the service on the same day and every other day in most parts of China. For the logistics demand with harsh time limit, SF Express brand can complete the delivery task accurately, reliably and quickly.
there are three kinds of SF express, express, standard express and special offer. The express is the fastest, limited to the first-tier cities in Beijing, Guangzhou and Shenzhen. The standard express is ordinary express, which is divided into land and air, and the speed is faster. Air usually arrives the next day. The special offer is the slowest and cheapest, and it usually takes about 4 days to arrive.