Using mobile phones to surf the Internet, make phone calls or send text messages, which radiates the most?

Making a phone call is the most radiation, because it is closest to the head, especially at the moment of connection, and the radiation is particularly great!

For pregnant women, the radiation from surfing the Internet is relatively large, because surfing the Internet is continuous radiation and the stimulation lasts longer. However, because ordinary people surf the Internet and are far away from their heads, the radiation is emitted in the form of cubic roots, so the radiation is almost negligible when the distance is far away.