I used Galaxy A23 5G and AQUOS wish 2 for two years, and currently the main devices are two refurbished Google Pixel 7a units in excellent condition, iPad 10th generation, and Kindle Paperwhite.
The essential settings are:
1. Recommend carrying two smartphones
2. Decide on usage purposes
3. For outdoor use, focus on barcode payment apps, Suica, GO, etc.
4. For home use, use as ATM, radio, and small TV terminal for peace of mind (Wi-Fi operation is fine, but budget SIM is also recommended for emergency communication)
5. Recommend iPad Wi-Fi model. SMS definitely won't reach it
6. Don't buy expensive smartphones; in 2023, Galaxy A23 5G or AQUOS wish 2, now refurbished Google Pixel 7a is sufficiently comfortable
7. Reason: For outdoor use, to avoid resistance during theft leading to falls, fractures, and care needs, assume it will be stolen
8. For screen locks, if possible, memorize an "alphanumeric password of over ten digits" instead of "PIN" to delay thieves
9. Use "Reset device to factory settings" from Android.com/find
I recommend definitely using iPad's AssistiveTouch for home buttons, screenshots, and restarts.
https://support.apple.com/guide/ipad/ipad9a2466d3/ipados
9. Social Impact