Here is another iPhone compatible treadmill that can give you a fun workout indoors. The Bluefin Fitness KICK 2.0 Treadmill combines with Kinomap fitness app to let you train with thousands of videos from around the world. It has a quiet, efficient motor that can deliver speeds up to 12km/h. It also has 18% manual incline option.
The treadmill has integrated heart rate sensors and a digital screen to show calories burned, speed, and run time. It comes with integrated Bluetooth speakers. The Kick 2.0 Treadmill has a convenient smartphone/tablet stand.[where to get it]