42mm

The cutouts line up perfectly, so buttons are easy to press without wrestling the case. I've dropped it twice on hardwood and the device didn't even flinch, which is exactly the durable protection I was hoping for.

The fit on my 42mm device is snug without being a struggle to get on, and the raised edges around the screen give me real peace of mind when I drop it. I’ve had it a week now and the durable casing still looks brand new, even after a few accidental tumbles.

The 42mm fit is spot-on, and the durable build gives me real peace of mind when I'm out hiking. I've dropped it twice on concrete already, and there’s not a scratch to show for it.