Here is another smartphone compatible exercise bike that gives you a good workout indoors. The YESOUL S3 Bluetooth Exercise Bike comes with 100 magnetic resistance levels. It connects to your iOS or Android device and works with Kinomap, Zwift, and other similar apps. In fact, it has a phone and tablet holder built-in.
The YESOUL S3 has a flexible handlebar to accommodate various riding postures. It has a footprint of 5.38 square feet, so you can use it in small rooms. Its display shows your distance, time, calories burned, and resistance.[where to get it]