Upgrades in Watford 's Arriva route 320 and 321 to Sapphire brand , similar to the London iBus system , provide leather seats , free wi-fi , charging points , and audiovisual announcements of stops .
Watford is served by the orbital M25 and the M1 which links London to the Midlands and the North as well as the A41 which also links London to the Midlands but via Aylesbury and Bicester , compared to the more direct M1 via Milton Keynes .
Watford