Essential guide

Smartphone Accessibility Settings Guide

Start with one real difficulty, change one setting at a time and verify that the user can still unlock, call and recover the phone.

Smartphone Accessibility Settings Guide — practical mobile guidancePractical guidance for UK mobile users

Start with one real difficulty, change one setting at a time and verify that the user can still unlock, call and recover the phone.

Vision

  • Text and display size.
  • Magnification.
  • Contrast, colour filters and reduced transparency.
  • VoiceOver on iPhone or TalkBack on Android.

Hearing and communication

  • Hearing-device compatibility.
  • Mono audio, balance and visual alerts.
  • Live captions or RTT where supported.
  • Vibration patterns and notification visibility.

Motor and cognitive access

  • Voice Control or Voice Access.
  • AssistiveTouch, Accessibility Menu or Switch Access.
  • One-handed mode.
  • Reduced motion, simplified layout and app limits.

Save a recovery route

Add an accessibility shortcut, keep the device passcode available to the owner and document how to turn a feature off. A screen reader changes touch gestures, so practise before the phone is urgently needed.

Change settings safely

  • Write down the original setting before a large change.
  • Enable a shortcut for the feature being tested.
  • Change one group of settings at a time.
  • Ask the user to repeat the important tasks without prompting.

Avoid enabling several unfamiliar control systems at once. If navigation becomes confusing, restore the last known configuration rather than resetting the entire phone.

Back up the configuration

Take screenshots or write down important accessibility settings on another device. After a repair, replacement or reset, this record can restore a working setup much faster than trying to remember every text, audio and control adjustment.

Test the settings as a complete everyday workflow

After configuring text, magnification, audio, screen reader or voice access, ask the intended user to complete a short sequence without prompts: unlock the phone, find a contact, read or hear a message, reply and return home. This exposes conflicts between settings that look successful in isolation.

  • Check one banking, travel and messaging app because third-party support varies.
  • Confirm the accessibility shortcut works from the lock screen where appropriate.
  • Review the setup after several days and remove options that add complexity without benefit.

Configure accessibility around tasks, not labels

Start by observing where the user becomes blocked: reading, locating controls, hearing calls, entering text, holding the phone or recovering from a mistake. Change one group of settings at a time and let the user repeat the task before adding another feature.

  1. Set readable text, display scale, contrast and motion preferences.
  2. Test input: keyboard, dictation, voice control, one-handed mode, switch access or assistive touch.
  3. Test output: screen reader, magnification, captions, hearing-device connection and alert patterns.
  4. Keep a simple route to unlock, call a trusted contact, adjust volume and disable an accidentally triggered feature.
  5. Check third-party banking, transport, health and work apps; system accessibility does not guarantee that every app is usable.

Do not enable a screen reader or complex gesture system for someone and leave before they can turn it off. Record the final settings and recovery steps, but preserve the owner’s account credentials and privacy.

Official sources

Facts checked: 26 July 2026. Menu names and available features change by device and version. Use the official guide for the exact platform and test after updates.