Cofounder of Totemic here. Just to add detail, it should be corrected in the article now but we don't use sound. Just as you say, we believe one major advantage of our system is not requiring behavior change on the part of seniors when that can be really difficult even if they want to because of memory and other issues.
We'll likely use one device for small apartments and have to scale up to 2-3+ for larger houses much like Eero does.
Totemic cofounder here. We actually don't just detect "falls" as a moment in time, but also use patterns to figure out things along the line of someone being on the floor in a place they usually aren't and they're not able to get up.
Cofounder of Totemic here! Austen is right! We use a variety of wireless sensors to monitor people's movements. We can do much more than detection of falls at a singular moment in time this way and we actually will be using a singular device for small apartments and multiple for larger houses (think like Eero).
We'll likely use one device for small apartments and have to scale up to 2-3+ for larger houses much like Eero does.