Screen Distance FAQ: Every Question Answered
Hold your phone 13–20 inches (33–50 cm) from your eyes; closer than 12 inches (30 cm) is too close. Android has no built-in Screen Distance feature like iPhone, so you'll need a distance alert app. Below are the most common questions, grouped by topic.
The key numbers
Read more by topic
- Distance: How Far Should You Hold Your Phone From Your Eyes?
- Android: iPhone Has Screen Distance. Does Android?
- Choosing an app: Best Screen Distance Apps for Android
- Eye strain: Digital Eye Strain: Symptoms, Causes and How to Stop It
- Breaks: The 20-20-20 Rule Explained
- Kids: Screen Time and Kids' Eyes, Can Holding Your Phone Too Close Cause Myopia?
- Posture: Tech Neck, Monitor and Laptop Setup
- Adult eyes: Dry Eyes From Screens, Presbyopia and Your Phone, Using Your Phone in the Dark
- More for kids: 5 Signs Your Child May Be Nearsighted, When Should Kids Get Their Eyes Checked?, Screen Distance Without Nagging
- Habits & settings: Using Your Phone Lying Down, Android Settings for Your Eyes
FAQ
How far should I hold my phone from my eyes?
The American Academy of Ophthalmology recommends 13–20 inches (33–50 cm) — about arm's length. Read more
How far should my computer monitor be?
About 25 inches (63 cm), roughly arm's length.
How close is too close?
Closer than 12 inches (30 cm). iPhone's Screen Distance feature uses the same line.
What is iPhone's Screen Distance feature?
A Screen Time feature added in iOS 17. It uses the Face ID camera to measure distance and covers the screen if you hold the device closer than 12 inches for an extended period. Read more
Does Android have Screen Distance?
Not built in. Install a distance alert app like Screen Distance Monitor & Alert to get a similar alert. Compare apps
Do distance alert apps store camera images?
Screen Distance Monitor & Alert processes camera frames on-device only to calculate distance and discards them immediately — nothing is stored or uploaded. For other apps, check their privacy policies.
Can screens permanently damage your eyes?
The American Academy of Ophthalmology says no. Digital eye strain is temporary and improves with rest. Read more
Can holding a phone too close cause myopia?
Not instantly, but long periods of viewing closer than 20 cm (8 in) are linked to faster myopia progression. Read more
How much screen time should young kids have?
The WHO recommends none for children under 2 and no more than 1 hour a day for ages 2–4 (less is better). Read more
Does the 20-20-20 rule work?
Results are mixed. Break reminders reduced eye strain in one study, but the benefit faded once reminders stopped. Frequent breaks — with a reminder — matter most. Read more
How much weight does your neck carry when you look at your phone?
One study calculated about 60 lb (27 kg) of force at a 60° head tilt. Try raising your phone toward eye level. Read more
Sources
- American Academy of Ophthalmology — Screen time, daylight, screen distance, myopia and eye strain
- American Academy of Ophthalmology — Computers, digital devices and eye strain
- American Academy of Ophthalmology — Prescription for keeping children out of glasses: sunshine
- WHO — Guidelines on physical activity, sedentary behaviour and sleep for children under 5 (2019)
- Myopia Profile — Digital device viewing behaviour in children
This article is general health information, not a diagnosis or treatment. If eye discomfort persists, see an eye doctor.





