Motoring groups say Apple's smartwatch could be dangerous for drivers and could lead to more road deaths.
The head of policy and research at Britain's Institute of Advanced Motorists, Neil Greig, said: "An iWatch has the potential to be as distracting as any other smartphone device - more so if you have to take your hand off the wheel and your eyes off the road to interact with it."
The Apple Watch, which has a screen measuring 38mm by 42mm, also sends users small vibrations.
Mr Grieg said: "There is no need for a change in the law, but more a change in enforcement.
"There are not enough officers and people need to be aware. People don't think they are going to get caught."