While Samsung Electronics officially released the Galaxy Z Fold 8 Ultra, Fold 8, and Flip 8 series in Korea on the 7th, attention is also being paid to the durability of the Fold 8 model, which was the most popular in the pre-purchase stage.
Unboxing YouTuber "Curious" recently released a video containing the durability test process, such as bending the Fold 8 upside down or scratching the display with an awl. He is famous for his videos that deal with not only Galaxy series products, but also smartphones and other home appliances such as Apple in the U.S. and Honor in China, which are so severe that they are close to "destruction."
According to the video released this time, scratches were observed on the front display of the Fold 8 from "hardness 6" based on the MOS hardening machine. This is similar to that of Jangsu stone, a type of feldspar. The previous Fold 7, which is similar to the crystal mineral quartz and has been observed to scratch at hardness 7, which is one step higher.
Fold 8 began to scratch from hardness 6, but rather, at hardness 7, less scratches occurred than hardness 6. The YouTuber said, "It seems to be slightly weaker than the previous ceramic 2 glass that went into Fold 7," but added, "If you look at the degree of holding out at high hardness, it seems true that the resistance itself is higher than that of ordinary glass."
As the test continued with hardness number 8, a slightly larger scratch occurred on the front display of the Fold 8. In Gyeongseong No. 9, the front display was observed to grow. Hardness 8 is similar to Hwangok (topaz) and hardness 9 is similar to Kangok (corundum). The internal display with added anti-reflection function was scratched from hardness 2 (stone level).
Fold 8 is a model with "Flex Titanium" technology that combines titanium alloy film and reinforced titanium plate. Titanium alloy films have about 20 times higher rigidity than conventional polymer films but are implemented as thin as one-third the thickness of a human hair.
As if to prove this, even though the YouTuber hit the side with a monkey spanner several times, only lightly scratched marks remained on the corners of the glass. "The belief in durability is evidenced by the brand's confidence that the protective case does not require a front cover," the YouTuber said.
The highlight was an attempt to fold the fold 8 by applying a strong force to the outside. The YouTuber bent as hard as he could, saying, "For me, who has a history of smashing the Fold 7, folding the Fold 8 back is completely chewing gum," but no change was detected in the Fold 8.
Even when the embarrassed YouTuber made the second attempt, there were no abnormalities, such as lifting the frame or damaging the hinge. The YouTuber explained, "This is not what I expected, so I'm a little embarrassed, and I thought there must be some weaknesses, so I checked everything, but surprisingly nothing happened."
The attempt to fold the Fold 8 outward came after a harsh experiment, with the rear camera lens glass forcibly removed and flooded. For this reason, it was difficult to clearly grasp what additional damage occurred to the display in the process of attempting to bend the Fold 8.
However, when the YouTuber tried to turn it on again, the "Samsung" logo was displayed on the internal display, suggesting that there was no additional damage in the process of targeting the hinge.