The iPhone Duo wowed us as Apple’s first foldable phone, but it’s time to test out how its first-gen hinge holds up. We’re now testing the $1,999 iPhone Duo using our custom-made folding machine, the Fold-a-Phone, which has been diligently opening and closing the phone since we bought the Duo on Friday.

Learn more: The iPhone Duo Just Passed 55,000 in Our Fold-a-Phone Testing Machine. Can It Beat the Galaxy Z Fold 8?

CNET is livestreaming our iPhone Duo long-term folding test on our YouTube channel , which you can watch embedded here. Our robust in-house machine will open and close the foldable around 20,000 times per day to simulate years of wear and tear on the hinge. You’ll be able to watch this testing on a livestream from our CNET Labs location in Louisville, Kentucky.

Our iPhone Duo folding test is ongoing, with our Fold-A-Phone machine running since Friday.…