When asked which smartphone activities are most important to them first thing in the morning, users mentioned texting most often, but also placed entertainment apps like streaming music services above Twitter and other well-known platforms.
The study, by a US-based consumer research company GfK MRI, was conducted among over 5,900 American smartphone users.
It shows that 22 per cent of time spent on smartphones is devoted to entertainment - games, music, web surfing, and watching streamed content; that is the same proportion devoted to texting.
When researchers asked consumers which smartphone apps or functions they turn to first thing in the morning, texting was cited most often, by 67 per cent of respondents.
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Email came in second, mentioned by 63 per cent, followed by Facebook (48 per cent) and the weather (44 per cent).
Hispanics were even more likely to mention texting (73 per cent), with email a relatively distant (64 per cent).
Games overall came in 7th first thing in the morning, mentioned by 19 per cent of respondents. A streaming music service (12 per cent) placed above Pinterest, Twitter, and other well-known social media apps.
Texting is the phone feature that respondents said they would miss most if it was not available.