Just upgraded my
10 years old Motorola Defy+ (3.7") to a Samsung Z Flip3 (6.7")!
I have yet to be convinced by this last gen phone, not as SFF as the one from late 2011 I fear.
From what I see, two hands are needed to operate it while my right thumb was enough before.
At least the Z3 fits easily in my jeans pocket, sort of heavy (183g vs 118g) but it fits. I didn't find any other Androïd phone with decent hardware doing that, all having a screen of 5.5" or more.
Glad to have gotten it second hand at half its price. It is in mint condition, apart from the Samsung stock screen protection that appears to be missing. Dunno how that could be...?

Will see what I can do about that.
Will it lasts till 2032?!