In the battle that announces for the speakers of the talking video, Google sells YouTube, Amazon turns to Prime Video and with Facebook, it is the social network.

Google and Facebook have partnered with Amazon to offer the next wave of domestic speakers, Alexa with twist, a video display. Facebook came out Monday with its video portal. On Tuesday, Google introduced Google Home Hub, an update of its famous Google Home speaker, a new device with a video screen dedicated to Google.

Amazon will be the first to go to the stores, with the newer and more complete Echo unit available Thursday, while Google's Home Hub, an extension of the Home speaker line, will be released on October 22. Facebook Portal and Portal + products will be available in November.

How units compare:

Amazon Echo Show (second generation)

You will say: "Alexa"

Price: $ 229

Release date: October 11

Screen size: 10 inches (instead of 7 inches from last year)

Video content: most movies and TV shows from Amazon Prime Video. The Amazon Silk Browser offers access to YouTube from Google, which was removed from the original show, due to a business conflict between Amazon and Google.

Photos: Can broadcast photos that have been uploaded to the Amazon Prime library and used as a photo frame.

Live TV: Many shows on networks and cable channels can be viewed via a $ 39.99 subscription to Hulu Live TV.

Video calls: to other users of the Echo show and, later this year, members of the Skype network.

Microphones: 8

Other goodies: see lyrics and album art via Amazon Music and view weather reports. See who is at the entrance door via Ring Video Ringtone, a product owned by Amazon.

Google Home Hub

You will say, "Hey, Google" or "OK, Google"

Price: $ 149

Release date: October 22

Screen size: 7 inches

Video content: YouTube owned by Google for recipes, tutorials and entertainment programs.

Photos: Cast photos and videos from the Google Photos app and use them as a photo frame.

Live TV: Many shows on the network and cable TV via YouTube TV, the monthly cable alternative to $ 40.

Video Calls: No cameras are available on the home hub.

Microphones: 2

Other benefits: All popular Google services, such as Google Maps for visual moves, a calendar for appointments and smart home accessories. See who's at the door of the screen via the Nest Video Doorbell, a product owned by Google.

Facebook portal and portal +

You will say, "Hey, Portal"

Price: $ 199 and $ 349

Release date: November

Screen size: 10.1 inches and the largest version of 15.6 inches

Photos: Post photos and videos from your personal collection on Facebook

Live TV: No live content on cable TV or network, but Facebook offers videos of its original productions on Facebook Watch, as well as on Newsy and Food Network.

Video Calls: Make and receive calls from your friends and family via Facebook and Messenger. Up to six people can be on the call.

Microphones: 4

Other benefits: Facebook offers tools to disable the camera and microphones with a camera lock

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