Shoppers looking for Thanksgiving and Black Friday deals ventured no further than their couches, reportedly setting record high numbers for smartphone transactions.

According to Adobe Analystics, almost half of the almost $3 billion spent online on Thanksgiving Day came from mobile devices, Axios reported.

"The big story this holiday season is in mobile shopping," Mickey Mericle, the vice president of Adobe's Marketing and Customer Insights division, told CNBC.

"Shoppers looking for discounts are getting better at using smartphones to quickly close the deal, and we are seeing better mobile conversion this season at over 10 percent growth," he added.

Adobe Insights, which measures 80 percent of online transactions at 100 major U.S. retailers, said 61.1 percent of shoppers' visits to retailers' websites on Thanksgiving stemmed from mobile devices, including smartphones and tablets, CNBC reported.

And the devices were driving 46.2 percent of total online revenue; consumers had already spent more than $640 million by Friday morning — an increase of 18.4 percent compared with a year ago, CNBC reported.

A separate survey by Salesforce, also found more shoppers using mobile devices to make purchases on Thanksgiving.

The smartphone orders on Thanksigivng surpassed computers for the first time, the survey found.

"The mobile share of traffic to retail sites was head and shoulders above any other device," wrote Rick Kenney, head of consumer insights at Salesforce's Commerce Cloud division.

"Thanksgiving will likely bump Cyber Sunday off the medal stand to become the third-biggest shopping day of the season, trailing only Black Friday and Cyber Monday."

Companies including Target, Macy's, Kohl's and Nordstrom have all been seen making investments in their mobile apps, CNBC reported.

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