We have written a lot on this blog about technology that helps people stay in their own homes. Fall-detecting watches. Voice assistants. Daily check-in calls. Cameras and smart locks. A fair question follows. Do these devices actually make older adults feel better, or do they only make their families feel better?
The authors, led by Lifen Zheng and Li Wang, used three rounds of the China Longitudinal Aging Social Survey, taken in 2018, 2020, and 2023. They followed 4,541 adults aged 60 and older through all three rounds. The authors note that more than 90 percent of older adults prefer to age in place, which is the reason they chose the question.
In 2018, they counted how many of eight types of smart devices each person used. The list is broader than the phrase “smart home” suggests. It includes a smart wheelchair, an electronic blood pressure monitor, a blood lipid analyzer, a smartwatch or bracelet, a smart camera with remote monitoring, a smart home assistant, a sleep monitor, and an audio reading device.
In 2020, they measured how much social interaction each person had, and how much benefit each person got from being online, such as convenience in shopping, health information, and communication. In 2023, they measured mental health with nine items from a revised depression scale, scored so that higher is better. They accounted for gender, age, marital status, education, self-rated health, chronic conditions, daily-living limitations, and each person’s mental health at the start.
Spreading the measurements across five years let the researchers look at what came first, not just what traveled together.
Older adults who used more devices in 2018 had better mental health in 2023, even after the researchers accounted for how those people were doing at the start.
The more interesting finding is how that happened. Once the researchers added social interaction and online benefits to the model, the direct effect of the devices disappeared. The devices weren't lifting mood on their own. They worked through people and through convenience. Device use was linked to more contact with family and friends. That contact was linked to getting more out of technology. Both were linked to better mental health later.
In plain terms, the gadget was not the cure. The connection and the convenience it made possible were.
The authors are candid that the effects are small. They describe the impact as “more incremental than transformative.” They also say the devices are one part of a broader set of supports for aging in place, not a stand-alone answer.
For families, that is the honest takeaway. A device is not a substitute for a visit, a phone call, or a neighbor who knows to knock. It works best when it makes those things more likely.
What the Study Cannot Tell Us
The study has some limitations that one must keep in mind:
- It is Observational: The measurements are spread across time, which helps, but it does not prove the devices caused the improvement. People who adopt technology may differ from people who do not in ways the study did not capture. The authors did not control for income, wealth, or homeownership.
How This Fits What We Have Already Written
This study does not overturn earlier posts. It sharpens them.
In April 2025, we wrote about reports that frequent technology use may slow cognitive decline. That post drew on a news report. This study doesn't measure thinking skills, but it shows a parallel pattern in mood. The value seems to lie less in the device than in staying engaged.
In March 2025, we reviewed smart home health technologies and the evidence behind them, and we said they work best alongside legal planning. That advice still stands. This study adds that they also work best alongside people.
In September, we wrote about daily wellness check-in services and called them one layer of support, not an emergency system. The new study supports that layered view. It did not test check-in services, and an automated call is not the same as the family contact the study measured. Still, a check-in that leads to a real conversation is worth more than one that ends with a tap.
And in our 2026 smart home toolkit, we said aging in place is about living well at home, not just staying there. Voice reminders, fall alerts that reach a family member, and a lock that removes the struggle with keys all lower small daily barriers. Those reductions free up attention and energy for the contact the study found matters most. The toolkit’s cautions about privacy and involving the older adult in setup still apply. A device that feels like surveillance is unlikely to produce the connection the study measured.
Most importantly, the study supports our repeated emphasis on home (e.g.,"The Heart of Home Care: Why Family Is the Ultimate Key to Successful Aging in Place and “I Just Want to Be Home”: Emily Ladau’s Powerful Senate Testimony and Why It Matters for Every Senior Aging in Place) and family (e.g., "Family Caregiving: The Powerful Key to Successful Aging in Place" and "The Heart of Home Care: Why Family Is the Ultimate Key to Successful Aging in Place." Whether a family or home is natural or chosen, the combination of both home and family creates the conditions that support a person's health and well-being.
Your Plan
•Start Small and Match the Tool to the Person: Choose one or two devices that solve a real daily problem or make it easier to stay in touch with family. Prefer relationship-focused tools, such as video calls, shared reminders, and simple check-ins, over pure monitoring.
• Decide Who May Manage the Devices and Accounts: A watch, tablet, or companion device usually sits behind an account, password, and terms of service. If you lose capacity, someone must be able to keep it running. Your documents should say who can access your digital accounts and devices, and under what authority. Ohio addresses fiduciary access to digital assets in Chapter 2137 of the Revised Code, and your estate planning documents should be written with it in mind.
•Put Your Own Consent in Writing: Cameras, motion sensors, and location tracking raise real privacy questions, especially if capacity declines. Say now what you are comfortable with, and how you can pause or decline a feature, instead of leaving your family guessing.
•Tie the Technology to Your Goals: If your aging-in-place directive says you want to remain at home, the tools that make that possible, and the people paying for them, should be named in your plan. Your financial agent or successor trustee must be able to pay the subscription and the aide.
•Plan for the Human Part: If the study is right, the best technology plan is one that increases contact with real people. Choose tools your family will actually use, and give the people who use them clear permission to act.
The Bottom Line
Smart devices appear to help older adults’ mental health, mostly by helping them stay connected and by making daily life easier. The effect is real but small. They are not a treatment for depression, and they do not replace in-person contact, medical care, or a well-drafted plan for decision-making and care. Treat technology as one piece of a plan that also includes people, money, and good documents.
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