Black Friday may bring to mind images of bargain hunters rushing stores when the doors are opened, but online shoppers also pounced on deals this year.

Online sales for Black Friday hit $6.22 billion in the US, up 23.6 percent from a year ago and a new record high, according to Adobe Analytics, which tracks e-commerce transactions across 80 of the top 100 US retailers. In 2017, Black Friday shoppers spent $5.03 billion online.

Adobe said 33.5 percent of online sales the Friday after Thanksgiving came from mobile devices, compared to 29.1 percent on last year. Black Friday was also the first day ever to see more than $2 billion in sales coming from phones alone, according to Adobe.

"Retailers have done their part to build better mobile experiences for consumers and turning nearly 10 percent more smartphone visitors into buyers this Black Friday versus last," said Taylor Schreiner, director of Adobe Digital Insights, in a statement. 

Laptops and streaming devices such as Roku, Chromecast and Amazon Fire TV were among the top selling products on Black Friday, according to Adobe.  Top selling video games included Red Dead Redemption 2, Let's Go Pikachu and God of War.

Shoppers didn't wait until Black Friday to get started. Online spending on Thanksgiving Day hit $3.7 billion in the US, topping last year's record of $2.87 billion, according to Adobe Analytics. Since Nov. 1, US consumers have spent $38 billion online.

And Cyber Monday is still to come. Adobe expects Cyber Monday sales to grow 17.6 percent year-over-year to $7.8 billion. 

"The entire holiday season continues to see vigorous growth with Cyber Monday expected to be the largest US online shopping day in history," Schreiner said.

First published Nov. 24, 11:51 a.m. PT.
Update, 2:47 p.m. PT: Adds more information from Adobe.