Z Flip5 Durability Test YouTuber Surrenders... Forced Breakdown After Flour Dough Pouring

400,000 Folds and Unfolds Without Damage
Finally Ended Testing by Intentionally Breaking
YouTuber: "The Hinge Still Works"

A famous YouTuber testing the hinge durability of Samsung Electronics' latest foldable phone, the 'Galaxy Z Flip5,' eventually gave up. After the smartphone did not break even after 400,000 folds, he deliberately damaged the phone by applying flour to it.

Polish IT specialist YouTuber 'Mrkeybrd' has been conducting foldable phone durability tests since June 2 (local time). The video title is "Samsung Z Flip5 vs Motorola Razr 40 Plus (Ultra) - The Great Folding Test."

The test method was simple. Two testers repeatedly folded and unfolded the Z Flip5 and Razr 40 Plus to verify durability. The channel stated at the time, "We did not receive any sponsorship from Samsung or Motorola. Both phones were specially purchased for this experiment," and declared, "We will keep folding until both flip phones break."

Galaxy Z Flip5, which did not break during the durability test, underwent an additional experiment of having flour poured on it.
[Image source=YouTube]

The Razr 40 Plus reached the end of its lifespan about four days after the experiment started. The final test count was 126,376 folds. Meanwhile, the Samsung Z Flip5 was still functioning properly even after more than a week of testing.

Eventually, after exceeding 400,114 folds, Mrkeybrd gave up. He deliberately damaged the phone by applying flour dough. In a short video posted after the experiment ended, Mrkeybrd expressed amazement, saying, "Even after that, the (Z Flip5's) hinge still worked."

Four hundred thousand folds correspond to about 4,000 days, or roughly 11 years, assuming the phone is opened and closed 100 times per day. This means the hinge is unlikely to break during the phone's entire lifespan.

The experiment also attracted attention from domestic netizens. Some visited the channel conducting the test and commented, "Samsung really made a durable phone this time," "Without the flour dough, it could have lasted a million folds," and "The tester looks tired."

The significance of this experiment lies in the fact that actual human testers conducted the test. Although phone manufacturers also perform durability tests using folding machines before product sales, machines apply consistent folding angles and force, which differs from real-world conditions.

Meanwhile, foldable phones have long faced design weaknesses such as weak hinge durability and the formation of "hinge wrinkles" after prolonged folding and unfolding.

Samsung Electronics applied a waterdrop-structured flex hinge starting with the Z Flip5 released this year, enhancing both durability and design.