Management science classical theory solves internet invention to raise smart phone sale number increases Why does internet can influence smart mobile phone consumers' purchase desire? Has internet have direct relationship to influence smart mobile phone buyers' purchase desires ? Can the smart mobile phone talking product still attract phone buyers' preference choice, if it lacks internet function? Can internet raise smart phone sale number and create many mobile phone inventors and manufacturer occupations to raise GDP real GDP when smart phone buyers number and smart phone related occupation needs increase. I shall apply behavioral economic theory to attempt to explain the reasons how and why internet has direct relationship to influence smart mobile buyers' preference talking product choice in this traditional home telephone talking product market as below: Is the internet putting up a barrier between people, even in bed? Does internet influence mobile phone consumers have not choose to buy because they are influenced to use mobiles when they use mobile to link internet to see any movies, or phones or news and influence their sleeping time in habit and they won't have nervous to work or learn on day time. We compulsively carry our smartphones with us wherever we go. The classroom, the bathroom, the bedroom, the outdoors - our phone is always in hand as if it were some magic self-defense tool capable of protecting us from all that is evil in the world. It all happened so fast. We didn't have the time to set any boundaries for smartphone usage, and now we find ourselves unable to save our relationships and form meaningful interactions with those dear to us.Smartphones are very useful in many circumstances. However, although not ruining your relationships per se, they can harm it in devious ways.Addiction to smartphone usage is a common problem among adults worldwide. It manifests itself in the excessive usage of their phones, while engaged in other activities such as studying, driving, social gatherings and even sleeping. However, many people fail to realize that addiction to smartphone usage is a serious issue that can have a negative effect on the person's thoughts, behavior, tendencies, feelings, and sense of well-being. In particular, it can be a risk factor for depression, loneliness, anxiety and sleep disturbances. As per the Mental Health Foundation in the United Kingdom, people with depression experience an unhappy mood, loss of interest or pleasure, feelings of guilt or low self-worth, disturbed sleep or appetite, low energy, and poor concentration. Depressive and anxiety disorders are two main common disorders that are highly prevalent globally, as over 300 million people are estimated to suffer from depression, which is equivalent to 4.4% of the world's population. It is speculated that not only addiction to smartphone usage can affect one's mental and behavioral status, but also that those with mood disorders are more likely to become addicted to using their smartphones