A recent survey by Deloitte’s found that one in three UK adults has argued with their partner about using their mobile phone too much. The rows were most common among 25-34-year-olds the report found, while 11% of over 65s admitted arguments about overusing phones.

About a tenth of respondents admitted using their handsets “always” or “very often” while eating at home or in restaurants. A third said they regularly used their devices while with friends or watching television. One in three UK adults – and half of 18-24 year olds – said they checked their phones in the middle of the night, with instant messaging and social media the most popular activities. One in 10 smartphone owners admitted reaching for their phone as soon as they woke up – with a third grabbing the device within five minutes of waking.

It goes without saying that the more you use your smartphone, the more you need to keep it topped up.