High-tech calls for help: Understanding gadget limits

Gadgets that can call for help in an emergency—such as a “smart” speaker, a mobile phone designed for older adults, or an alert button—have limitations. For example, a smart speaker has a limited listening range, and may not hear if someone is calling for help from another room. Smartphones and alert buttons won’t do any good if they aren’t being worn or if they’re not within reach. It’s best to learn about gadget limitations before investing in one.