http://www.techradar.com/news/amazon-echo-vs-homepod-vs-google-home-the-battle-of-the-smart-speakers

Update: If you like using your smart speaker as a personal assistant, a recent update to Google Home has introduced the ability to set voice reminders. You can now set one-off or recurring reminders months in advance of events and receive notifications for them on your Android device. This brings Google's assistant in line with what Siri and Amazon's Alexa could already do. 

The Amazon Echo might've been the original smart speaker in town, but it's far from the only name in the game these days. Google wasn't far behind with its Google Home and, recently, Apple unveiled the Apple HomePod, its smart speaker that's coming later this year for $349 (about £270 or AU$460).