• by Laurie Sullivan , Staff Writer @lauriesullivan, March 9, 2015

There's a clear chasm between the haves and the have-nots when it comes to mobile Web site performance. Best performers saw the highest-percentage increase of Web site traffic from mobile phones and tablets, up 15.5% and 13.4% year-over-year (YoY), respectively, per data released Monday.

The Adobe Digital Index (ADI) released Monday suggests that poor mobile experiences on brand and retail Web sites hurt page views, visit rates and conversions.

The need to optimize content for wearables like the Apple watch will become more important this year. With Apple expecting to make an announcement about the release of its smartwatch today, Adobe's survey findings reveal that 27% of those who don't own a smartwatch say they are very likely to buy one in the next six months, and 67% say they are "very" likely to buy an Apple Watch.

ADI's market share data and survey findings focus on wearables like watches, and iOS and Internet of Things (IoT) devices. It analyzes browser market share based on visits across more than 10,000 Web sites, video viewing based on 2.67 billion TV Everywhere authentications, and 191 billion total online video starts across platforms.

Mobile transactions will rise with wearable devices. Separately, ADI conducted a survey of 1,000 mobile users in February 2015, where 26% of surveyed consumers have used a mobile wallet and 21% plan to within the next six months. 

When it comes to mobile media consumption, such as video views on a small device, the ADI study attributes a high percentage to the release of the iPhone 6 and the iPhone 6 Plus. The study found that digital video viewing nearly doubled on smartphones YoY. The iPad is the most popular device for streaming TV everywhere content, with 29% share of authenticated videos in Q4 2014. Roku is most popular OTT device.

Still, iPad's share of tablet browsing hovers just above 70% in more than half of the 40 countries measured, such as 77% in the United States, and 81% in China.

Gaming console and OTT device share of TV Everywhere content rose 50% YOY. iOS share fell 21% YOY.  While Apple Mac holds about 13% of market share for the overall desktop space, they hold 40% share of desktop video authentications.

Larger screens continue to make a different when it comes to video viewing, spending 24% more time on the smartphone per month, compared with the same month in the previous year. The iPhone 6 and iPhone 6 Plus video completion rate rose, reaching the "half-way" point, rising 7% compared with Q3 2014.

The top 3 IoT devices that consumers want to interact with digitally include home electronics, home appliances such as refrigerators, ovens, thermostats, and cars.