Calls made driving lower your focus score, regardless of whether you use hands-free equipment or not. The score drops significantly more if you hold the phone during the call, so it’s definitely better to use the hands-free equipment if you need to take a call while driving.
But hands-free is legal, why does it lower the score?
Research from our partners in the UK has shown that phone calls increase a driver’s reaction time by an average of 50%, whether you're using hands-free equipment or not, which in turn increases the likelihood of an accident. Mobile phone use is involved in over 60% of all accidents 📵