The short answer
A locked phone can show selected emergency contacts and medical details without exposing the whole device. Agree with your parent on what belongs there, add only information they have confirmed, and check the locked-screen view without starting an emergency call. Keep a separate family response plan for the parts a phone cannot do.
In this guide 7 sections
What to keep in mind
- 1Ask permission and verify each detail with its owner before making health information visible to anyone holding the phone.
- 2iPhone Medical ID, Google Personal Safety and Samsung Safety and emergency use different settings and screens.
- 3A contact listed on a phone is not a guarantee that an alert will be sent or answered.
- 4Check what can be seen from the lock screen without dialing an emergency number or triggering SOS.
01
Decide what a stranger may see#
Begin with the parent, not the menu. Explain that a lock-screen emergency card can help someone find a contact or see a relevant detail, but anyone who picks up the locked phone may also be able to read it. Ask which contact numbers and health details they want visible. A relative should not fill in a diagnosis, allergy, medication or blood type from memory.
Use the smallest accurate set that might help: a reachable primary contact, a backup, and any information the parent has verified and chosen to share. Check that each contact knows they are listed and that their number still works. A phone display is an aid to a human response, not a substitute for an up-to-date care plan or professional advice.
02
On iPhone, create or review Medical ID#
With your parent, open Health, tap the profile picture, then Medical ID. Add or edit the chosen fields and emergency contacts. Apple places emergency contacts in Medical ID; adding someone there does not give them access to the Apple Account or the rest of the phone.
Turn on Show When Locked only if your parent accepts the visibility tradeoff. Apple also offers Share During Emergency Call, a separate setting whose availability and behavior vary by country or region. Do not assume that turning on lock-screen visibility transmits information to responders. Save the changes with Done.
03
On a phone with Google Personal Safety#
On supported Android phones, open the Safety app, sign in if prompted, and tap Your info. Under Medical information, enter only confirmed details. Under Emergency contacts, choose an existing contact. Google places lock-screen visibility under Emergency info access, then Show when locked.
The Personal Safety app is available only on some Android devices, and some steps depend on Android version. If this menu is absent, find the device maker's current emergency-information instructions instead of assuming a Pixel screen applies to every Android phone. Google warns that anyone holding the phone can find the displayed emergency information.
04
On Samsung Galaxy, use Safety and emergency#
Samsung currently directs Galaxy owners to Settings, Safety and emergency, then Emergency contacts to add a person. Go back to Medical info to enter the parent-approved information and save it. Menu labels and available screens vary by model, software and carrier.
Check the device's lock-screen display option and the actual locked view. Samsung also has Emergency SOS and Emergency sharing; those are separate actions that may contact people or emergency services. There is no reason to trigger them merely to confirm that a contact card is readable.
05
Inspect the locked view without making a call#
Lock the phone while your parent is present. On iPhone, open the passcode screen, tap Emergency, then Medical ID. On a supported Google Android phone, swipe up from the locked screen, tap Emergency, then View emergency info. Samsung lock-screen paths can differ; use the Emergency call screen to inspect available information, but do not dial.
Confirm that the right contacts and intended details appear and that nothing more private than expected is visible. Then unlock and correct errors. If a screen asks you to start SOS, call, share location, or begin a countdown, stop: that is not the viewing test. Never place a false emergency call for setup.
06
Separate contact information from automatic alerts#
A visible emergency contact gives another person a number to use. It does not mean the family receives a notification whenever the phone is unlocked or an emergency happens. Apple, Google and Samsung have additional SOS or sharing features, each with its own conditions and regional limits. Configure those separately only after the parent understands what an activation sends and to whom.
A dead battery, missing device, unavailable network or person who does not notice the card can defeat this route. Write down who should be called first, who backs them up, where the parent is, and how local help can reach them. If there is an immediate emergency, contact the appropriate local emergency service.
07
Review the card when the real-world facts change#
Revisit the display after a phone replacement, medication or contact change, a move, or a change in the parent's sharing preference. Ask the parent to confirm the details again. Remove an old contact promptly; a card that looks complete but points to an unreachable person may mislead a helper.
Keep this as a short routine: agree on what to show, enter verified details, inspect the locked screen, and record a date to review it. The family response plan remains the place for addresses, backup people and escalation steps.
Beyond the phone
Give the contact card a response plan
Record the person to call, their backup, home access and when to contact emergency services.
Build a family response planSources and further reading
We favor primary public-health guidance and official product documentation. Section links identify context for documented facts, not validation of our own family-planning steps, schedules or examples. Sources do not imply endorsement of Haven & Signal.
Apple: Set up Medical IDHealth app, Show When Locked, emergency contacts and regional sharing caveat. Checked September 24, 2026.↗Google Android: Get help during an emergencyPersonal Safety availability, emergency information, lock-screen viewing and service limits. Checked September 24, 2026.↗Samsung: Use Galaxy in emergency situationsSafety and emergency menus, medical info, contacts and device variation. Checked September 24, 2026.↗About this guide
Sources, scope and updates.
- Research
- Haven & Signal Research Desk
- Sources checked
- September 24, 2026
- First published
- September 24, 2026
This guide draws on the linked sources and practical editorial guidance. It does not report hands-on product testing, independent fact-checking, and an expert assessment. Check current instructions with the relevant provider before acting.
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