Here is an affordable smart treadmill that you can use anywhere to get your body working. The Wellfit Walking Pad combines with the WELLFIT app that has over 25 preset programs. It has a speed range of 0.6 to 3.8mph. It has a noise rating of 40dB. It has a 2.5HP silent motor and can handle loads up to 300lbs.
This treadmill has a 360-degree phone/tablet holder. It has a 5-layer anti-slip belt with 8-point shock absorption and 2 spring cushion pads to go easy on your body. You can find out more about it here.