01
Fold or Flip: two different phones, two different numbers
The Fold is the book-style device with an outer cover screen and a large inner display. It carries the higher price of the two by a wide margin, because it costs far more new and because the inner panel is the most expensive single part on either phone. We buy the Fold 4 and everything after it.
The Flip is the clamshell. It folds down to roughly half the height of an ordinary phone and has a small cover display on the outside. We buy the Flip 4 and everything after it.
Inside each family the generation and the storage tier both matter, and they matter more than on a slab Galaxy, because the used market for foldables is thinner and more sensitive to what is currently supported. Give us the model exactly as it appears in Settings, About phone, rather than "a Fold" or "a Flip", and the figure that comes back is one that holds at inspection.
02
What actually moves the price on a foldable
The inner display comes first and nothing else is close. A fault there, meaning a dead line along the fold, a bright or black band, an unresponsive strip, or a lifted protective layer, is the most expensive thing that can be wrong with the phone. It does not stop us buying, and it is the single item worth being most precise about in your first message.
The hinge is second. It should open smoothly, hold at an angle without drifting, and close flat with no gap at the spine. Grit in the hinge, a crunching sound, or a phone that will not sit flush all change the number.
The outer screen and frame follow, then the battery and charging behaviour, then storage and model. Previous repairs matter more here than on any other phone we buy: an inner screen or hinge replaced outside Samsung changes what the next owner is getting, so tell us who did the work and roughly when.
What does not count against you: the crease. Every foldable has one and it deepens with use. It is normal wear, it is expected on a used unit, and it is not a deduction.
03
Creases, display damage and hinge problems, explained plainly
The distinction that decides your number is between ordinary visible wear and an actual fault, so it is worth knowing which one you have before you message.
Ordinary wear is the crease itself, light scuffing on the cover screen, worn hinge coating, and small marks around the frame. None of it needs explaining at length and none of it is a problem.
A fault is anything that behaves differently from new. Touch that does not register in a band along the fold, a line or discolouration that stays put as the screen changes, a protective layer that has started to peel or bubble, a hinge that has developed play, or a phone that no longer closes completely flat.
We do not promise to accept every condition sight unseen, and we will not pretend a badly damaged inner panel is a small deduction. What we will do is tell you the number before you travel, and tell you plainly if a unit is being priced for parts rather than for resale. A phone assessed honestly on WhatsApp is a phone that gets paid for without an argument at the counter.
04
How to photograph a Fold or a Flip so we can price it
Five photos and one sentence is all we need, and it saves a round trip.
Photograph the phone open with the inner display switched on and showing a plain bright screen, because faults hide on a dark one. Photograph it closed, from the front, so the cover screen is visible. Photograph the hinge along the spine with the phone half open. Photograph the frame and corners. Then add a close-up of anything you already know about.
The one sentence is about behaviour rather than looks: does it fold and unfold smoothly, does the whole inner screen respond to touch, and has anything ever been repaired.
That combination gets you a firm number rather than a range, and a range is exactly what collapses when the phone is finally in someone's hands.
05
Get your Samsung foldable ready to sell
Back it up first, with Smart Switch to a computer or to your Google account, and confirm the backup finished before you erase anything.
Then remove the accounts. Sign out of your Samsung account and your Google account, and turn off Find My Mobile. A Galaxy still signed into a Google account is locked by Factory Reset Protection after a wipe, which makes it unsellable until the original account signs in. That is the one issue that stops a sale outright and it cannot be cleared at our counter.
Next the SIM. Take the physical SIM out, and if you are on eSIM, move the line to your new phone before wiping this one. Then run Settings, General management, Reset, Factory data reset.
Bring the charger and the box if you still have them, and leave the screen protector on the inner display if one is fitted. Peeling it off does not improve the phone and it sometimes takes the factory layer with it.