The two breeds do not need extensive exercise or training but the moderate amount that is required of all dogs. After years of research, it has been found that Boston Terriers are found to be more energetic than the French Bulldogs but this does not imply that French Bulldogs are lazy.
They have a lot of energy that they would rather spend running around and playing with their human companions. Ensure to not take the French Bulldogs out on very hot days as they do not do very well in the heat because of their small snout and also the breathing problems.
Both the dogs have separation anxiety and are widely popular as family dogs, so if you would not be around, these are not the right choices for you. They need mass attention and care and deserve nothing less.
French Bulldogs, like most dogs, need to be properly trained and socialized at an early age. They need proper attention and care from a very young age. They like to cuddle, so if you are a clingy person, you will love yourself a French Bulldog.