Next time you’re out in public, take a moment to look around and observe your fellow humans. Whether you’re on the subway, at a café, or just walking down the street, it won’t take long to notice a pattern—everyone is on their phones.

And they’re not just talking (when was the last time you used your phone to actually call someone?). They’re organizing their calendars, paying bills, posting their vacation pics, and, more and more, they’re shopping.

This shouldn’t surprise anyone who’s been living at ground level or above for the past decade. But considering how ingrained these devices have become in our daily lives, it bears repeating: if you don’t already have a store that’s optimized for mobile, you need one. Right now. No excuses.

But you don’t have to take our word for it. We’ve rounded up the latest mobile ecommerce stats. They all point to essentially the same thing: people are spending more time—and money—on mobile than ever before.

Here are 18 good reasons to make mobile your #1 focus in 2018 and beyond.

Life in the mobile world

The current state of “m-commerce”

  • Mobile accounts for nearly a quarter of global ecommerce sales in 2017. In certain markets, like China, the proportion is even greater, with more than 75% or $1.1 trillion expected to be transacted over mobile by the end of 2018.

    Graph showing mobile share of digital spending in the US from 2010 to 2017
    Mobile’s share of digital spending in the U.S. from 2010 to 2017
  • Roughly four out of five Americans are now online shoppers, with more than half having made purchases using a mobile device.
  • 90% of consumers say they use multiple devices to complete everyday tasks, while 40% say they use their mobile device to conduct research prior to making a purchase.
  • Cyber Monday 2016 was the first day in ecommerce history to break $1 million in mobile sales. Cyber Monday 2017 just broke $2 billion.
  • Despite big investments in mobile, basic store functions like page load times (48%), navigation (31%) and checkouts (28%) continue to frustrate buyers and thwart conversions.

The mobile opportunity

  • The future of mobile commerce is blindingly bright. By 2021, mobile is predicted to dominate online sales, driving 53.9% or $659 billion in sales.

    Bar graph of mobile market shares from 2017-2021
    The predicted growth of mobile commerce from 2017 to 2021
  • Mobile commerce is currently growing three times faster than ecommerce.
  • 70% of mobile searches lead to action within an hour. (For comparison, it takes desktop users a full month to reach the same percentage.)
  • 51% of smartphone users have purchased from a company other than the one they originally intended to because of information provided at the moment they needed it.

What consumers want

  • Useful, actionable content. 69% of smartphone users say they are more likely to buy from companies whose mobile sites or apps help them easily find answers to their questions.
  • Personalization. 61% of mobile consumers say they’re more likely to buy from mobile sites and apps that customize information to their location and preferences.
  • Speed. 40% of consumers will leave a page that takes longer than three seconds to load. The current average load time for U.S. mobile retails sites: 9.54 seconds.Bar graph of page load speed and probability of bounce rate
  • An intuitive purchasing experience. 59% of smartphone users feel more favourable towards companies whose mobile sites or apps allow them to make purchases quickly.

With stats like these, it’s safe to say that having your store optimized for mobile is no longer an option for online merchants, it’s a necessity. Customers are becoming less and less tolerant of stores that aren’t uniquely tailored to their devices. If you can’t deliver an experience that’s quick, convenient, and easy-to-use, don’t be surprised if your visitors are leaving—and leaving fast.

For an ecommerce experience that’s specifically tailored to mobile users, check out our mobile-first Shopify themes, Handy and Reach.