Some 90% of consumers say they value having a mobile device with them when holiday shopping in-store, according to recent research from Opera Mediaworks.

The report was based on data from a survey of 800 consumers in the United States who use mobile devices.

Nearly half (47%) of respondents say they use a mobile device to check competitors' prices when holiday shopping in a store, 36% say they look up product reviews, and 30% say they sign up for store promotions/discounts.

Some 40% of respondents say they have made a purchase because of a mobile advertisement, and 57% say they would do so if an offer were relevant.

Check out the infographic for more findings from the report:

About the research: The report was based on data from a survey of 800 consumers in the United States who use mobile devices.