Yes, excessive smartphone use can conflict with Catholic teaching on human dignity, but smartphone use itself is not immoral. The moral question concerns how the device affects freedom, relationships, responsibilities, prayer, and the dignity of oneself and others.

Human dignity is an inalienable gift because every person is created in God’s image. Yet one’s free choices can either express or obscure that dignity; sin wounds dignity without ever destroying it.

When use becomes morally problematic

Excessive use may undermine dignity when it:

• Weakens freedom and self-mastery: compulsive scrolling or dependence can make a person less capable of choosing the good freely. Catholic teaching links authentic freedom with orientation toward truth and goodness.
• Damages real relationships: constant phone use can replace face-to-face presence with isolation or superficial virtual contact. Dignitas Infinita warns that digital media can contribute to addiction, isolation, loss of contact with concrete reality, and weakened interpersonal relationships.
• Neglects duties: using a phone excessively at work, during family time, while driving, or during worship may violate responsibilities toward God and neighbour.
• Exposes oneself or others to degrading content: pornography, cyberbullying, manipulation, exploitation, and gambling are directly contrary to human dignity.
• Harms children and vulnerable people: early or unsupervised use can affect sleep, attention, emotional control, relationships, and expose young people to addiction, bullying, exploitation, and isolation.

Conversely, digital technology can serve dignity when used for legitimate communication, education, work, evangelization, solidarity, and service. The Church describes the internet as capable of promoting encounter and solidarity, provided it leads to truth, generosity, closeness, and the common good.

A useful examination is: Can I freely put the phone down? Does its use help me love God and people more faithfully? Is it harming my prayer, sleep, duties, health, or relationships? If the answer indicates loss of control or serious harm, reducing use is not merely a productivity technique; it may be an act of virtue and respect for human dignity.