US consumers will spend 82 minutes per day using mobile devices – excluding making calls – by the end of 2012. This is growth of 51.9 per cent, from just 34 minutes in 2010, according to eMarketer.

Mobile ad spend is still critically low – just 1.6 per cent of advertising budgets, compared to the 11.7 per cent of total daily media consumption. This has increased from 8 per cent in 2011 and appears to come at the expense of TV, radio and print share of time spent.

eMarketer estimates that US mobile ad spend will reach $2.61 billion by the end of 2012. In 2016, they see that figure reaching $12 billion in 2016.

This news also comes as the growth in time spent online has slowed. This area is still expected to grow 3.6 per cent, to an average 173 minutes per day by the end of the year, but this is significantly slower than the 7.7 per cent growth seen in 2011.

Overall time spent by US consumers has increased yet again, to 699 minutes per day, more than 11 hours.