Foldable Phone Durability Lab Tests iPhone Duo and Galaxy Z Fold 8

Louisville lab engineers and testers demonstrate a custom durability-testing machine for foldable phones, called Fold-a-Phone, and begin testing the iPhone Duo. The segment explains how the lab develops repeatable scientific tests for devices including the Samsung Galaxy Z Fold 8 and why hinge and display endurance are central to foldable evaluation.

■ Lab and Fold-a-Phone setup
- Overview of the Louisville facility’s engineering and testing teams
- Custom machine designed to secure different foldables, test multiple orientations, and limit screen pressure
- Fold rate of about 900 to 1,000 cycles per hour, with plans for a second machine

■ Durability testing focus
- Hinge and display performance under repeated folding
- Calibration of folding speed to approximate human use without excess heat or stress
- Galaxy Z Fold 8 rated for 500,000 folds; no Apple rating provided for iPhone Duo

■ Live iPhone Duo test
- Ongoing test streamed weekdays on CNET’s YouTube channel until failure
- Viewers invited to comment with predictions for the number of folds

The video covers the lab setup, machine design, and initial test run; it does not provide a final durability result for the iPhone Duo. It is suited to viewers interested in foldable hardware, testing methodology, and following the live test.