The environment is different: the gym has good environmental equipment and professional coaches to guide it, and the exercise atmosphere is better.

Different equipment: There are more and more types of equipment in the gym, which can exercise different muscle groups more specifically and achieve better results.

Different partners: There are more partners in the gym to exercise together, which can encourage and help each other and keep exercising.

Different time: Exercising in the gym can make use of the time on the equipment to arrange the exercise plan more scientifically, while exercising by yourself requires mastering the time by yourself.

Self-discipline is different: having coaches and other exercisers supervise each other in the gym can better overcome laziness and procrastination, while exercising by yourself requires stronger self-discipline.

In short, whether you choose to go to the gym or exercise by yourself depends on your actual situation and needs.