Tech Roundup June 2018: Asus ZenBook | Habitap smart home | KaHa smart T-shirt | Apple WWDC 2018

Fancy a second screen on your laptop? The new Asus ZenBook might be for you. You can now monitor your hearbeat by wearing a smart T-shirt! And Singapore start-up Habitap has an app that gives you smart home solutions. Lastly, a roundup of the highlights at Apple’s WWDC 2018.