Unlike a treadmill, however, you'll be challenged to lift your bodyweight as you step to the next rung of the machine. Stair climbers are available in many commercial and private gyms.

Looking to level up your home gym? A vertical climber could be your next fitness essential. These machines simulate a rock-climbing motion, engaging all major muscle groups for a full-body workout ...

Knowing whether a steep incline treadmill or a stair climber makes for a better workout comes down to your fitness level and fitness goals, experts say.