Around the globe, our retail spending habits are transforming and mobile is a big part of that.

$1 out of every $10 is spent online and nearly half of Americans are interested in paying with a mobile wallet. In the US, 42% of all mobile subscribers have smartphones and 3.6% of online payments are currently made via them.

According to research behind the new infographic on mcommerce from Big Commerce, nearly half of retailers have optimized their site for mobile devices but less than a third of retailers have optimized their sites specifically for tablets.

As m-commerce is set to hit $119 billion by 2015, it looks like a lot of companies need to invest in mobile, and fast.