Big puff bars differ from regular disposable vapes mainly in the number of puffs they offer. While a standard disposable vape provides around 600 puffs and lasts 2-3 days, big puff bars can deliver 6,000 to 10,000 puffs, lasting up to a week or more. Though pricier, they are more cost-effective due to their extended use. Like regular disposables, big puff bars are user-friendly with inhale activation, making them convenient for all vapers.