AI-enabled home-safety devices range from smart doorbells that spot strangers at the door to wearable pendants that automatically call for help if you fall. Choosing the right one depends on your situation: whether you live alone, have memory challenges, or have a caregiver checking in from a distance. This guide explains each type in plain English and helps you ask the right questions before you buy.
An AARP survey found that 71 percent of adults aged 50 and older are interested in using AI to help monitor home and personal safety — one of the highest-rated future uses in the survey (AARP Research). The good news is that the devices that make this possible have improved a great deal. They are also easier to buy and use than most people expect.
This guide walks you through the main categories, explains what each type actually does, and helps you decide which one fits your situation.
Smart Doorbells and Home Cameras
A smart doorbell replaces or sits alongside your regular doorbell. When someone walks up to your front door, the built-in camera sends a live picture to your phone or tablet. You can see who is there — and even talk to them through a speaker — without opening the door.
The AI part: modern doorbells use AI to tell the difference between a person, a package, a car, and an animal. You get an alert only when a real person arrives, not every time a delivery van passes by.
What it collects: Video footage of your front entrance, usually for a short period — anywhere from a few hours to 30 days depending on your plan. If you pay for cloud storage, that footage sits on the company's servers. Without a paid plan, footage may only be available live on your phone.
Good for: Knowing who is at the door before you open it. Also useful for caregivers who want confirmation that a regular visitor — a home carer, a delivery person — has arrived at the right time.
Products in this category include Ring Doorbells and Google Nest Doorbell. Prices and subscription costs change; check the current pricing on each manufacturer's website.
Indoor cameras work the same way but face inside the home. They can alert a family member if an older person hasn't moved around by a certain time of morning. The ethics of indoor cameras deserve a proper conversation before you set one up — our guide on AI home monitoring for elderly covers exactly that.
Wearable Fall Detection: Smartwatches
If you or a family member already wears a smartwatch, some models include built-in fall detection. The Apple Watch and certain Samsung Galaxy Watch models are the most well-known examples. When the watch senses a hard fall and you don't respond to a prompt within about a minute, it automatically calls emergency services and sends a message to your emergency contacts.
What it collects: Movement and location data, continuously. This data goes to the watch manufacturer's servers. You can control some privacy settings in the companion app on your phone.
What it does not do: It is not infallible. Falls near furniture you grab onto, or certain types of exercise, can confuse the sensor. And if you set the watch down on a table, it cannot detect anything.
Good for: Active older adults who already want a smartwatch for messaging, fitness tracking, or health monitoring and want fall detection as an added safety layer.
Wearable Fall Detection: Medical-Alert Pendants
A medical-alert pendant is a small device you wear around your neck or on your wrist. Unlike a smartwatch, it has one main job: keep you safe. When it detects a fall — using a motion sensor — it triggers an alarm and connects you to a monitoring center or calls a family member directly.
Many modern pendants include:
- Automatic fall detection — the sensor triggers without you pressing anything
- A manual SOS button — press it anytime you need help, even if you didn't fall
- Two-way voice — you can speak to the monitoring center through the pendant itself
- GPS location — so help can find you if you're outdoors
Cellular backup: Some pendants work over your home Wi-Fi; better ones include their own cellular connection. This matters — Wi-Fi can go down in a power cut, but a device with cellular backup keeps working.
Products in this category include Life Alert, Lifeline (formerly Philips Lifeline), and Bay Alarm Medical. Monthly monitoring fees apply to most of these services; confirm current pricing directly with the provider.
"Does this device work if the power goes out? Does it need Wi-Fi?"
Ask that question before you buy. It is one of the most important.
Passive In-Home Monitoring Apps
Passive monitoring means tracking someone's routine without them wearing anything. A set of small sensors placed around the home — on the refrigerator, bathroom door, front door — detects whether normal daily patterns are happening. If Mum hasn't opened the fridge by 10 a.m. when she normally does by 8 a.m., a family member gets a gentle alert on their phone.
Some systems use cameras; others use motion sensors that don't record any video at all, making them much more privacy-friendly.
What it collects: Motion patterns and door-open events. Camera-based versions collect video. All of this goes to an app the family member checks on their phone.
Good for: Families checking in from a distance on an older relative who doesn't want to wear any device. The person being monitored should always know a system is in place — see "What to Watch Out For" below.
Products in this category include dedicated sensor kits from various home-security providers. Subscription costs vary by provider. (Amazon discontinued its own Alexa Together caregiving service in 2025.)
The Five Key Buying Questions
Before you buy anything, get clear answers to these five questions:
1. Does it need a monthly subscription? Many devices require an ongoing monitoring fee on top of the upfront cost. Ask what happens if you stop paying — do the core alerts still work, or does the device become useless?
2. Does it work without Wi-Fi or if the power goes out? A device with cellular backup keeps working when your internet fails. GPS tracking also works outdoors where there is no home Wi-Fi.
3. Who sees the footage or data? Read the privacy policy, or ask a family member to read it. Find out whether footage is stored on company servers, for how long, and whether it can be shared with third parties.
4. Can the person wearing it turn it off? The wearer should always be able to silence alerts or pause monitoring. Devices that don't allow this raise serious consent questions.
5. Is the device waterproof? Bathrooms are where many falls happen. Look for a water-resistance rating — IP67 or higher — if you want to use it in the shower.
Start Here: Which Type Fits Your Situation?
Lives alone, no immediate family nearby: Start with a medical-alert pendant that has cellular backup and automatic fall detection. Add a smart doorbell so you can see visitors safely before opening the door.
Early memory challenges: A passive sensor system works well here because there is nothing to remember to wear or charge. Pair it with a voice assistant (Alexa, Google Home) that can give verbal reminders throughout the day.
Caregiver at a distance: A passive sensor kit or indoor camera (discuss it first and get agreement) gives you peace of mind without requiring your relative to do anything differently. A smart doorbell tells you when the home carer has arrived.
Active and independent, wants a safety net: A smartwatch with fall detection is the least intrusive option. It doubles as a fitness tracker and doesn't feel like a medical device.
What to Watch Out For
Privacy and consent. The person being monitored should always know what is being recorded and who can see it. Installing a camera or sensor without telling them — even with good intentions — can seriously damage trust. Our guide AI Home Monitoring for Elderly: What Families Need to Know covers this in detail.
False alarms. Motion sensors and fall detectors are not perfect. Too many false alarms and people start ignoring them — which defeats the purpose entirely. Choose a device with adjustable sensitivity and test it before you rely on it.
Over-reliance. These devices are an added layer of safety, not a replacement for human contact. A sensor that reports "all normal" does not replace a phone call or a visit. Keep both.
Subscription lock-in. Some providers make it expensive or difficult to cancel. Read the contract carefully before signing. Look for month-to-month options where possible.
What to Try Next
If you want to understand the full picture of AI in caring for an older relative — including the privacy conversation — AI Home Monitoring for Elderly: What Families Need to Know covers the human side in depth. For a broader look at health wearables and wellness gadgets, AI Health Gadgets for Seniors: What's Worth Buying puts the whole market in plain English.
