G: stands for GSM network or GPGS network, corresponding to 2G network or 2.5G network respectively (shown as circle O on iPhone). The internet speed is slow, and the internet speed is generally 3~ 10K, which saves traffic very much and has gradually begun to be eliminated.

E: stands for EDGE network and refers to 2.75G network. Generally, the network speed is around 40K, which is slightly faster than GSM network or GPGS network.

H is an upgraded version of 3G.

3G refers to an ordinary 3G network. The speed is fast, the downlink speed can reach 2Mb, and the internet speed is generally around 100K.

After 3G upgrade, HSDPA network (abbreviated as H), that is, 3.5G network, has become a mature 3G network, with downlink speed of 42Mb and Internet access speed of about 150k.

Extended data:

Meaning of other symbols beside the signal:

T stands for TD-SCDMA, which is a practical 3G network. The actual user experience speed is only a little faster than that of 2G network, the network speed is very unstable, and it is still in its infancy (domestic development), and the Internet access speed is about 100k K.

H+, an upgraded version of HSDPA HSPA+, is a 3.75G network with a downlink speed of 42Mb and a general Internet access speed of about 250k K.

LTE stands for LTE network, commonly known as 3.9G In 20 10, the International Telecommunication Union officially defined LTE Advanced as 4G, with a downlink speed of 299.6Mb and an Internet access speed of about 700 K.

4G refers to the ordinary 4G network, which is the most popular network at present, and it is also the place where the three major operators constantly compete for users. Downlink speed can reach 1Gb, and Internet access speed is dozens of times that of 3G.

4G+ is an upgraded version of 4G (CA) technology, which has been basically covered in developed cities and densely populated areas. Downlink speed is about 300Mb, and Internet access speed is about twice that of 4G.