Using a folding device requires more attention than a standard smartphone. The most frequent error is letting debris like keys or coins get trapped between the halves when closing the device. Samsung warns that such objects can scratch or puncture the inner display. This risk grows if you work in a dirty environment or live near a beach, where sand often slips into crevices that are hard to see. Manufacturers rate devices differently, too; the Galaxy Z Fold8 and Fold8 Ultra carry an IP48 rating, while the iPhone Duo has an IP68 rating. A six indicates a dust-tight device, whereas a four allows only objects larger than one millimeter to enter.
How to care for the folding display
The inner screen differs from a standard glass panel because it bends. Pressing too hard or dragging a fingernail across it can cause damage. You should also leave the factory film on the screen alone. Samsung recommends this protection because removing it may expose the display to scratches. Do not apply just any screen protector, either. Only use products or styluses the maker lists as compatible with that specific model. These devices handle force differently than flat phones, so you must be more particular when handling the folding screen.
Counting daily folds is less useful than checking for dirt before closing the phone. A clean seal prevents debris from getting caught. You should also avoid using concentrated force or pushing on the display. Samsung tested the Galaxy Z Fold7 by folding it 500,000 times in a lab setting, which suggests the hinge and screen might last for years under ideal conditions. However, lab results do not account for daily wear and tear. The original Galaxy Fold failed to meet its 200,000-fold claim after real-world use. When you hear these numbers, treat them as general benchmarks rather than guarantees.
Even a device with a high water resistance rating, like the IP68 on the iPhone Duo, can lose protection over time. Apple notes that exposure to water and dust can degrade the seal with normal use. Moving parts generally wear out faster than static components, so a folding phone will not last forever. The most practical approach is to keep the device clean and avoid closing it on anything other than open air.
For instance, if you open your phone 100 times a day, that would result in a lifespan of 5 to 10 years based on standard fold counts. Do not push heavily on the display or use the wrong stylus, and use a soft cloth to clean marks instead of digging at them with your fingernail.