Online slot machines differ from traditional physical machines mainly in accessibility, variety, and gameplay features. While physical slots are confined to specific casinos, online slots are available 24/7 from any location with an internet connection, offering a much wider range of themes and designs. Additionally, online slots often feature advanced mechanics, such as bonus rounds and interactive elements, that enhance player engagement. They generally provide higher payout percentages and frequent promotions, making them more attractive to players. This combination of convenience and variety contributes to the increasing popularity of online slots over traditional counterparts.