Running on treadmill vs outside? Running on a treadmill is the best choice when outdoor running is affected by the weather. The walkingpad with foldable body is the best treadmill for home when the weather isn't that great outside and to get some workout when we are watching TV. If you are an office worker, you can choose our under desk walking treadmill so that you can work while walking. This compact foldable walking treadmill is a must if you are a workaholic but need to stay active indoors.