The other day, Xiaomi CEO Lei Jun posted a live feed on his WeChat account, showing the process of folding and unfolding the Xiaomi Mi Mix Fold smartphone. The process took 7 days, all this time the smartphone and a special device were opened and closed every 1.6 seconds to check the reliability of the hinge. The live broadcast drew around 2 million viewers.
During that time, the mechanism was able to resolve 400,000 folds. This equates to 10 years of normal use (approximately 100 deployments per day). This result demonstrates the durability of the device design. For this form factor, this is an extremely important indicator, as usually, the hinge is the weak point of foldable smartphones. But Mi Mix Fold is certainly one of the most reliable in its segment. It should be noted that officially Xiaomi guarantees 200 thousand folds. However, as experience has shown, the reserve of the mechanism is much higher.
The smartphone was unveiled on March 30 as part of the spring presentation. The cost of the device is an impressive $ 1,500, but despite this, in the first minute after sales started, Xiaomi has sold over 30,000 devices.