This third party app brings Alexa and Siri together on your Apple Watch.
Siri might be the most widely used digital assistant, but Alexa isn’t far behind. Amazon’s smart digital assistant has been gaining a lot of traction over the last year thanks to its smart speakers.
Apple Watch users rely on Siri to do their hands-free tasks for them. And Apple’s wearable tech can’t officially run any other assistant. But now, an app allows you to use Amazon’s Alexa assistant on your Apple Watch.
Voice in a Can is a third-party app that lets you talk to Alexa from your wrist. It’s a standalone Apple Watch app, so you don’t need to tether to an iPhone to use it. As long as you have Wi-Fi or LTE (for Apple Series 3 LTE-enabled watches), you’re good to go.
So how does it work?
Voice in a Can uses a watch complication so that you can launch it from the watchface. All you have to do is sync your main Amazon Alexa account. To talk to Alexa, just tap on the icon in the app.
The Verge warns that you can expect Alexa to be slow to respond. It also suggests increasing the timeout setting for apps on the Apple Watch because the Alexa service disconnects every time the display goes blank.
Since Voice in a Can is a third-party app, you won’t be able to enjoy certain features. This includes making calls, playing music, or Echo announcements. 

However, the app fully fully supports the smart home features of Alexa.
The app costs $1.99 and is downloadable from the Apple Store here.
