What are the signs of phone addiction?

Most online phone addiction tests are built to make you nervous. Answer ten questions, get a red result, feel faintly ashamed, and then, as often as not, share the result on the phone. We would rather give you something more useful: what researchers actually look at, why the number of hours is a poor guide, and a few honest questions you can ask yourself. (This is general information, not medical advice, and nothing here can diagnose you.)

Whether “phone addiction” is a real condition at all is a question we answer separately in is phone addiction real? The short version is that it is not a formal diagnosis, and researchers mostly call it problematic smartphone use.

What are the signs of phone addiction?

6 areas, in the best-known research tool. The Smartphone Addiction Scale, developed in South Korea and published in 2013, grouped its questions into daily-life disturbance, positive anticipation, withdrawal, cyberspace-oriented relationships, overuse and tolerance.^[1] The caveat: it was developed and tested with 197 adults, and it is a measure for research, not a diagnosis.

In plain English, those areas describe:

• Disruption. Missing planned work, struggling to concentrate, disturbed sleep, or aches in the wrists or neck from phone use.
• Anticipation. The phone as the thing you look forward to, the place you go to shed stress, and feeling empty without it.
• Unease without it. Feeling impatient or fretful without it, having it on your mind when you are not using it, and irritation at being interrupted.
• Relationships that live in the phone. Friendships through the phone feeling closer than those in real life, and checking constantly.
• Overuse. Using it longer than you meant to, and wanting to pick it up again the moment you have put it down.
• Tolerance. In this scale, trying again and again to cut down and not managing it.

One of these on its own describes almost everyone. It is the combination, and the sense of it costing you something, that matters.

How many hours a day is considered phone addiction?

No set number of hours counts as phone addiction. UK adults now spend about four and a half hours a day online, on average, and most of that time is on a smartphone, according to Ofcom’s 2025 Online Nation report.^[3] The caveat is that this covers everything, from messages and maps to banking and work.

Hours are also a surprisingly weak signal of harm. A large 2019 analysis of 355,358 teenagers found that digital technology use explained at most 0.4% of the variation in their wellbeing.^[4] Two hours of doomscrolling at 1am and two hours of video calls with a grandparent are not the same two hours. What you do, when you do it and whether you chose it all matter more than the total on your screen time report.

What are phone addiction withdrawal symptoms?

44% of US teenagers said they felt anxious without their phone in a 2023 Pew survey, and around four in ten said they felt upset or lonely.^[5] The caveat is the other half of the same finding: 74% said they felt happy without it, and 72% peaceful. Unease at being separated is common, and for most teens it sits alongside relief.

Researchers do include “withdrawal” as one of the six areas above,^[1] but it means irritability or restlessness, not the physical withdrawal seen with alcohol or drugs. If you feel twitchy for the first hour of a phone-free afternoon, that is a habit protesting, not a body in withdrawal.

What is the Smartphone Addiction Scale?

33 questions in the original 2013 version, and 10 in the short version for adolescents published later the same year.^[1][2] In the original, each question is answered on a six-point scale from strongly disagree to strongly agree. The short version was tested with 540 Korean junior high school pupils, and its authors suggested cut-off scores of 31 for boys and 33 for girls.^[2]

The caveat, and it is an important one: those cut-offs came from one group of Korean teenagers and were never meant as a clinical diagnosis. Different studies use different scales and thresholds, which is one reason estimates of how common “phone addiction” is vary so widely. A 2019 review of children and young people put the median at 23.3%, across a wide range.^[6] We have not reproduced the questions here; the papers are free to read if you are curious.

Do I have a phone addiction?

No questionnaire can answer that on its own, and a website certainly cannot. What you can do is ask yourself a few honest questions, ideally on paper, not on the phone:

• When I pick up my phone, do I usually know why?
• Has it cost me something I care about recently: sleep, a conversation, a piece of work, a walk?
• Have I tried to use it less and found I could not?
• How do I feel after a long session: better, the same, or flatter?

If the answers bother you, that is useful information, not a verdict. Practical changes help most people, and our guide to how to use your phone less starts with the simplest: changing where the phone lives. If sleep is what is suffering, see does screen time affect sleep? For the design reasons it is so hard, see why are phones so addictive? And if it is your child you are watching, not yourself, we have written a separate guide for parents.

If your phone use sits alongside persistent low mood, anxiety or trouble sleeping, please talk to your GP. That is not a sign of failure, just the right door.

Mornings are often where the pattern starts, with the phone as alarm clock and first thing touched. Our Phone-Free Morning Kit is a small, practical way to take that first hour back.