Tech for early stages of dementia?

What technology smartwatches, apps, smart home systems, tools or similar could I set up to help keep my mum safe and comfortable in the early stages of dementia? Difficulty level: She is also visually impaired. More details below. My sweet mother, who maintained an iron mind her whole life, is now showing clear signs of dementia. She is increasingly forgetful and frequently repeats questions and comments. While she has adopted some basic strategies to manage her memory (such as using a paper calendar and a shopping list) I would love to set up technology that could help make her life easier and safer.

Here’s her current setup: she uses an older MacBook Air and an iPhone 8. She struggles with hardware upgrades, so I’d prefer not to replace these devices if possible. She also enjoyed using a Fitbit (which recently broke) to track her steps and check the time at night.

Here are my questions:

1. Is replacing her Fitbit with another one the best option, or would a different system, such as an Apple Watch, offer additional benefits?

2. Could a smart home setup make sense for her? If so, which system would you recommend? (Note: I don’t live nearby, so troubleshooting would need to be minimal.)

3. Are there specific apps that might help her navigate daily life more easily or safely?

4. Are there other practical tools, considerations, or online communities that you’d recommend?

I will be spending several weeks with her over Christmas so we could practice using new tech together.

If it’s relevant, she lives in a European country.