Treadmills are great for indoor exercise but many take a lot of space. The Bifanuo Walking Pad is an under desk treadmill with 5-degree incline that you can easily fit under your desk. It has a 5-layer anti-slip running belt with 265lbs user capacity.
This treadmill has a max speed of 4mph with noise rating of 70dB. It has a footprint of 43.7L x 21.3W x 7.2H inches.