UPDATE in the aftermath of my dilemma:
I have received the Samsung Galaxy 6 smart watch, got er all unboxed and charged up and installed.
With the exception of battery life, I am very happy with this purchase. Man, this thing will do anything my phone can do! Whether all that power is actually useful on a watch is not to be considered - It is not. I already won't do e-mail writing on my phone because it is too small - Why would I ever do it on a watch? But it can, by golly!
WRT the subject matter at hand though, it is precisely as advertised. Giggles works fine from it... Calling (whether through Giggles or by way of a phone app - All of it works. The bluetooth stays connected like I need it to, and even sports a notice if the bluetooth disconnects - IOW, if I wander too far from the phone, the watch will let me know - and it does.
Calling works perfectly, whether through the speakerphone on the watch, or sending the command to the phone to be picked up by my buds. Though as one might suspect, the onboard speakerphone ain't all that - It does suffice, however.
The fall detection works. The monitoring (heart, sleep, etc) is far more substantial in comparison to the Fitbit Versa 3 that I had before... I can even spot-check my heart with a rudimentary ECG.
But so far, battery is a thing - It's getting better... Right now, at 7:30PM, I am sitting at 87%. So tonight I think it will get through the night without charging. I intend to get in the habbit of charging it every morning with my morning coffee, when I am predictably sitting in my chair with all my other electronics around me - So if it makes it 24hrs between charges very reliably, I will be happy with that.
So tentatively, this was a good move. Can't tell for sure this early on, but it looks right. For anyone interested, it's an Amazon refurbished Samsung Galaxy 6 Classic 47mm from the 'Excellent' condition category, that I paid around $135 for.
That is all for now. I do have a Google Mini coming - It should be ere around the 25th. That's the 'Alexa' - like smart speaker that should be able to call Giggles out of the air... I will post with those conclusions as they come around.
For now, the smart watch seems to be a success.