Smartphones have become a vital part of modern-day life. Many people flock to a large cell phone store in Tokyo's Shinjuku district to buy the latest phone models, get their gadgets repaired and seek advice on other services. Among the customers in mid-March, a time for new beginnings in Japan, were an elderly couple fond of watching videos on their smartphones, a man struggling to spend less time glued to his phone, and people starting a new job or school year. What do phones mean to these customers? For three days, we asked them.