<6 inch
Been an samsung user for over 4 years, bought s10, flip 4 and currently on s23. Beens struggling to find a smaller phone these days! Even though I am got big hands and stuff. Having a smaller phone that can easily fit into my jeans pocket while walking around is scarce. It is even less distracting when comparing a large screen phone vs a smaller one!
Multiple concerns:
1 Seems there is no screen manufacturer producing smaller screen nowadays? Would probably increase the cost of production on the phone as it can not be split among multiple brands
2 Usability vs screen size, whats the sweet spot of a smaller screen while maintaining certain level of usability
3 Market size, Consumers are used to large phones(challenge this statement!)
4 Battery size, can it withstand a whole day use? If a smaller battery is used to fit into a smaller phone?
Personally: Something like a sony z5? Without top and bottom notch. Screen to body ratio >98%