Question: what are all the symbols at the top of my android phone?
Answer: The Plus in a Circle Icon. This icon means that you can save on your data usage by going into the data settings on your device. ... 
Two Horizontal Arrows Icon. ... 
G, E and H Icons. ... 
H+ Icon. ... 
4G LTE Icon. ... 
The R Icon. ... 
The Blank Triangle Icon. ... 
Phone Handset Call Icon with Wi-Fi Icon.