Can wifi radiation cause any type of cancer?

Ever since 2010, i had an Ipad addiction. I would use my ipad every single day for many many hours (literately). I just found out recently that most electronics gives off Electromagnetic radiation. I was especially concerned after watching this video https://www.youtube.com/watch?v=FXUuZl537YI becuase the area where the meter shows the most electromagnetic radiation is the area where i would always hold my ipad with my hand.

Now, i realize that most scientific articles said that they generally have found no connection between low electronmagnetic radiation and effects on Health. But it says this is an area that requires more research.

So should i be concerned, is my hand in danger of growing a tumor or anything for being exposed the the most irradiated area of the ipad for 5 years?