In the past two years on YouTube, videos with "review" in the title had more than 50,000 years' worth of watch time on mobile alone.

YouTube Data, U.S., Classification as review videos were based on public data such as headlines, tags, etc., and may not account for every such video available on YouTube, July 2015 - June 2017

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Related Data

Black millennials' mobile watch time on YouTube has more than doubled in the last two years.

September 2016 Nielsen

In the past two years, videos with the word "review" in the title had more than 50,000 years worth of watch time on mobile alone.

June 2017 Google

Black millennials watch substantially more YouTube on mobile than other millennials.

September 2016 Nielsen Electronic Mobile Measurement

>65% YoY increase in watch time for the top travel-related YouTube videos on mobile devices.

Jan.–Mar. 2015 vs Jan.–Mar. 2016 YouTube Data
80

of sports viewers use a compter or smartphone while watching live sports on TV to search for player stats and live scores, message other fans, and watch related videos.

December 2017 Google/Ipsos
30

of sports fans stream live sports on their smartphone or tablet.

December 2017 Google/Ipsos