  The deployment of 5G networks is sometimes questioned due to the impact of
ElectroMagnetic Field (EMF) generated by Radio Base Station (RBS) on users. The
goal of this work is to analyze such issue from a novel perspective, by
comparing RBS EMF against exposure generated by 5G smartphones in commercial
deployments. The measurement of exposure from 5G is hampered by several
implementation aspects, such as dual connectivity between 4G and 5G, spectrum
fragmentation, and carrier aggregation. To face such issues, we deploy a novel
framework, called 5G-EA, tailored to the assessment of smartphone and RBS
exposure through an innovative measurement algorithm, able to remotely control
a programmable spectrum analyzer. Results, obtained in both outdoor and indoor
locations, reveal that smartphone exposure (upon generation of uplink traffic)
dominates over the RBS one. Moreover, Line-of-Sight locations experience a
reduction of around one order of magnitude on the overall exposure compared to
Non-Line-of-Sight ones. In addition, 5G exposure always represents a small
share (up to 38%) compared to the total one radiated by the smartphone.
