An increasing amount of Britons admits that reaching for their smartphone is the first thing they do upon waking up, with more than a third conceding they check their device up to 50 times a day.
The Deloitte Mobile Consumer report reveals that most smartphone users check their device around 25 times a day, first turning to it approximately 15 minutes after waking up and finally in the last five minutes before going to sleep.
The survey of 4,000 UK citizens found that one in ten smartphone users reach for their smartphones immediately after waking up, with 53 per cent doing so within 15 minutes.
The smartphone obsession is most intense among younger users, with almost half of the 18 to 24-year-olds checking their smartphones within five minutes of waking to see texts, emails and social network updates.
The ritual is repeated at bedtime, with a quarter (28 per cent) checking their smartphone within five minutes before turning off the light.
"The modern, touchscreen-based smartphone is less than a decade old, but it is more intertwined with our lives than ever,” said Paul Lee, Deloitte's head of technology, media and telecoms research.
"Constant technological improvements are allowing us to delegate more and more tasks to our phones, from ordering taxis to browsing catalogues and paying for a meal."
According to the study, about 76 per cent of UK adults currently own a smartphone, up six percentage points on last year.
Most UK consumers admit using their smartphones "at every opportunity", including on public transport, at work and while meeting with friends.
The reason behind the growing 'smartphone obsession' is the increasing amount of functionalities the devices can perform, the study concluded. People are using it not only for communications, to stay in touch with their social world, but also to take pictures, book tickets and hotels, pay for purchases, create music and play games.