Armatix gun-watch symbiotic relationship

Woe to James Bond if he ever gets in a tight situation while using Armatix’s latest combo – a wristwatch and a gun, where the $10,000-priced firearm won’t be able to fire without the watch being nearby. In fact, the gun remains disarmed with a red LED lighting up unless the watch is close enough to submit a wireless signal. What are some of the practical aspects of this strange combination that you can think of?