Most statistics published under the heading “smartphone addiction” are not measuring addiction. They are measuring something easier to count, such as how many hours people spend on a phone or how often they check it, and then treating the result as a diagnosis.
It is worth being clear about the terms before the numbers, because they are not interchangeable:
- Smartphone ownership is how many people have a phone. It says nothing about how anyone uses it.
- Screen time, checking frequency and notification counts are behavioural measures. They describe what a device records, not whether use is harmful.
- Nomophobia refers to fear or anxiety about being without mobile-phone access. It is a descriptive label from the research literature, not a clinical diagnosis, and it is not a synonym for addiction.
- Problematic smartphone use (PSU) is the term most researchers now use. It covers excessive or maladaptive patterns of use and is assessed with screening questionnaires rather than a diagnostic interview, so results vary with the scale chosen.
- A diagnosed behavioural disorder is a clinical judgement made about an individual. “Smartphone addiction” is not a single universally standardised diagnosis, which is why prevalence figures differ so widely.
Every figure below says which of these it is, where it came from and who was studied. Where a source measured associations rather than causes, the wording says so.
Key Smartphone Use Statistics for 2026
- 91% of US adults owned a smartphone in Pew Research Center’s 2025 survey.
- A 2024 meta-analysis of 109 studies and 97,748 people put pooled problematic-smartphone-use prevalence at 37.1% (95% CI 33.5%-40.8%), with wide variation by scale and region.
- 38% of US teens say they spend too much time on their smartphone, and 36% have taken steps to cut back.
- 44% of teens say being without their phone sometimes makes them anxious – while 72% say it often or sometimes makes them feel peaceful.
- 38% of teens, and the same share of parents, say they argue at least sometimes about the teen’s phone time.
- 97% of US teens use the internet daily and 40% say they are online almost constantly.
- More than half of teens in a device-tracking study received at least 237 notifications a day.
- An umbrella review covering 867,003 adolescents found digital-device use associated with shorter sleep, later bedtimes and poorer sleep quality.
What the Research Actually Measures
This section covers what the research literature can and cannot tell you. It is short, because the honest answer is that there is far less solid prevalence evidence than the volume of published statistics suggests.
1. Nomophobia is not the clinical term for smartphone addiction.
(Source: research literature)
This page used to open by calling nomophobia “the official term for smartphone addiction” and claiming it affects around 66% of people. Neither part holds up.
Nomophobia describes fear or anxiety about being without mobile-phone access. It comes from the research literature, not from a diagnostic manual, and it is a narrower idea than addiction: being uneasy without your phone is not the same as compulsive use that damages your life. Researchers studying the latter mostly use problematic smartphone use, measured with screening questionnaires. There is no single standardised clinical diagnosis of smartphone addiction, which is the main reason published prevalence figures range from the low teens to over half depending on who is asked and which questionnaire is used.
2. A meta-analysis of 109 studies put problematic smartphone use at 37.1%.
(Source: Lu, An and Chen, Cyberpsychology, Behavior, and Social Networking, 2024)
The largest synthesis available pooled 106 articles covering 109 studies and 97,748 participants, published between 2012 and 2022, and estimated global problematic-smartphone-use prevalence at 37.1% (95% CI 33.5%-40.8%). The authors found prevalence rising over the decade, with a steeper trend among males than females.
Three caveats, all of which come from the study itself. This is a pooled figure across very different studies, not a census, and the authors note prevalence “exhibited wide variation between regions and measurement scales”, so the single number conceals a great deal. The included studies cover 2012 to 2022, so it describes that window rather than 2026. And screening positive on a questionnaire is not a diagnosis, so 37.1% should not be read as “37% of people are addicted to their phones”.
Smartphone Ownership and Everyday Use
Ownership and general use are the best-measured part of this subject, thanks to large representative surveys. They are also the part most often mistaken for evidence of dependence, so read them as context rather than as a diagnosis.
3. 91% of US adults own a smartphone.
(Source: Pew Research Center, 2025 survey)
Pew put US adult smartphone ownership at 91% in its 2025 National Public Opinion Reference Survey, fielded between February 5 and June 18, 2025 among 5,022 adults with a margin of error of ±1.9 points. That is up from 35% when Pew first asked in 2011.
Ownership tells you the device is close to universal among American adults. It tells you nothing about whether anyone’s use is problematic, and a page treating near-universal ownership as evidence of mass addiction is making an argument the data does not support.
4. 41% of US adults say they are online almost constantly.
(Source: Pew Research Center, 2025 survey)
In the same survey, 90% of US adults said they use the internet daily and 41% said they are online “almost constantly”. The figure was 31% when this page last cited it, and 21% in 2015.
Note what is being measured: time connected across all devices, self-reported. It is a reasonable proxy for how embedded the internet has become in daily life and a poor one for compulsive phone use, since “almost constantly” covers a laptop open on a desk at work as readily as a phone in a pocket. Our mobile traffic statistics cover the device split.
5. 16% of US adults rely on a smartphone for internet access.
(Source: Pew Research Center, 2025 survey)
Pew found 16% of US adults are “smartphone-dependent”, meaning they own a smartphone but have no broadband at home, while 78% subscribe to home broadband.
This is worth sitting beside the rest of the page as a corrective. For roughly one in six American adults the phone is not an optional distraction competing with a laptop, it is the only way online, which is a reason to be careful about framing heavy smartphone use as straightforwardly pathological.
Teens and Smartphones
Teenagers get studied more carefully than anyone else here, which means the figures are better but also more nuanced than the usual framing allows. The Pew numbers below come from a survey of 1,453 US teens aged 13 to 17 and their parents, fielded September 26 to October 23, 2023 and published in March 2024.
6. 38% of US teens say they spend too much time on their smartphone.
(Source: Pew Research Center)
Asked about their own habits, 38% of US teens said they spend too much time on their smartphone. That is a minority, and it is substantially lower than the 54% this page previously reported from older research.
It is also a self-assessment rather than a measurement, which cuts both ways: some teens who would screen positive for problematic use will not say they overdo it, and some who say they overdo it are using their phone no more than their friends.
7. 36% of teens have taken steps to cut back.
(Source: Pew Research Center)
Just over a third of US teens, 36%, said they had taken steps to reduce the time they spend on their phone.
This one rarely makes the headlines, which is telling. It sits very close to the 38% who think they spend too much time, suggesting that most teens who identify a problem also try to do something about it, a finding at odds with the helpless-addict framing these statistics usually carry.
8. 44% of teens feel anxious without their phone. 72% feel peaceful.
(Source: Pew Research Center)
Pew asked how being without their smartphone makes teens feel. 44% said it at least sometimes makes them anxious. In the same survey, 72% said being without it often or sometimes makes them feel peaceful.
Both answers come from the same teenagers, and quoting only the first, as coverage of this subject usually does, inverts the finding. These are self-reported feelings, not symptoms, and the honest reading is that being away from a phone is a mixed experience for most teens rather than a withdrawal state.
9. 38% of teens and 38% of parents argue about phone time.
(Source: Pew Research Center)
38% of teens said they at least sometimes argue with their parents about how much time they spend on the phone, and 38% of parents said the same. Half of parents said they had looked through their teen’s phone.
The symmetry is the interesting part: on this question, parents and teens describe the household the same way, which is unusual. Pew also found 46% of teens say their parents are at least sometimes distracted by their own phone during conversations.
10. 97% of US teens use the internet daily, and 40% almost constantly.
(Source: Pew Research Center, 2025)
Pew’s more recent teen survey, of 1,458 US teens aged 13 to 17 fielded September 25 to October 9, 2025, found 97% use the internet every day and about four in ten say they are online almost constantly.
This measures internet use across every device, so it is not a smartphone figure, and it replaces the old SMS-volume statistic this page used to carry. Texting counts are no longer a meaningful measure of teen communication, which now runs through social platforms and messaging apps instead.
11. More than half of tracked teens got at least 237 notifications a day.
(Source: Common Sense Media)
Rather than asking teens to estimate, Common Sense Media installed software on participants’ phones and measured. More than half received at least 237 notifications per day, about a quarter of which arrived during school hours, and participants checked their phones more than 100 times a day on average.
Read the sample carefully: roughly 200 Android-using teens aged 11 to 17, not a nationally representative panel, so this is not “the average American teenager”. What makes it valuable is that it is observed rather than recalled, and the direction is consistent with what teens report about interruption.
Screen Time, Sleep and Attention
This is where the evidence gets both strongest and most frequently overstated. Sleep is the outcome with the best research behind it. Note the language throughout: these studies find associations, and association is not causation, which matters because people who sleep badly also reach for their phones.
12. An umbrella review of 867,003 adolescents links device use to worse sleep.
(Source: Digital Devices Use and Sleep in Adolescents: An Umbrella Review, 2025)
Published in October 2025, this review pulled together seven systematic reviews, themselves covering 127 primary studies and a combined 867,003 participants. Its finding, in its own words: “a negative impact of digital device use on various sleep parameters, including sleep duration, bedtime procrastination, and sleep quality”. Smartphones and computers showed a greater adverse effect than television, and the sharpest disruptions came from social media and internet use, where problematic use was linked to delayed bedtimes, shorter sleep and longer time to fall asleep.
The authors are careful in ways that summaries of this research usually are not. They describe “the magnitude and direction of observed associations” rather than claiming causation, flag “considerable heterogeneity across studies”, note that many relied on self-reported data, and call for longitudinal work to “explore causal relationships”. In other words: the association is real and reasonably well established, the mechanism and direction are not settled.
13. Students who put their phones away took better notes and scored higher.
(Source: Journal study via Taylor & Francis)
In a classroom study, students who did not use their phones during a lecture recorded 62% more information in their notes, took more detailed notes, recalled more detail afterwards and scored a grade and a half higher on a multiple-choice test than students who did use their phones.
This is a single study on a specific task rather than a general claim about attention, and classroom results do not automatically transfer to other settings. It is included because it measures a concrete outcome rather than a feeling, which is rare on this topic. If you want the broader picture of how technology use is studied, see our technology addiction facts.
Wrap Up
The most useful thing to take from these numbers is how much weaker the evidence is than the language around it. Smartphone ownership is near universal among US adults at 91%, and that fact alone carries no diagnostic weight. The best available prevalence estimate for problematic smartphone use is 37.1%, pooled from studies spanning a decade, with the authors themselves warning about variation between scales and regions. And the strongest outcome evidence, on sleep, is explicitly associational.
The teen findings are the clearest example of how framing distorts this topic. A minority of teens, 38%, think they spend too much time on their phone, and almost as many have already tried to cut back. 44% feel anxious without it, but 72% feel peaceful without it, and both numbers come from the same survey. Report only the anxious figure and you have a crisis; report both and you have something more ordinary and more accurate.
None of which means heavy phone use is harmless. It means the honest version of this subject is more uncertain, and more interesting, than “we are all addicted”.
