You are downstairs. One is unarmed fitness, and the other is equipment fitness. Free-hand fitness focuses on the use of all muscles and flexibility training. Equipment fitness pays more attention to high-intensity stimulation of target muscles, which has advantages and disadvantages. Let me briefly list some. Unarmed: convenient and fast, anytime and anywhere. The disadvantage is that you are so heavy that you can hardly get up to the top. Equipment needs conditions, but it can get you there.