When it comes to deciding on the best WiFi kettle, ask five different people and you'll get five different answers. Some people will insist on simple but reliable performance, some will want app control, while others may demand Bluetooth connectivity and a kettle that works via voice commands. It's probably better to consider which one will heat water to your needs but if you love your devices and your tea, the Fellow Stagg EKG or Cosori Electric Gooseneck Kettles will certainly tick all the boxes.