Clip display dissapears AFTER UNPLUGGING

All display, including the blue ring around the navigation ring.

I tried resetting several times to no avail.

If it’s new, get it replaced. If it’s very very old, then conceivably the battery can no longer hold a charge.

But if it’s somewhere in between, it could be, as Milkerman said, a broken battery connection inside. Or if you’re lucky, it could just be a bad cord, which is easily replaced. (You may already have one from a phone or camera.)

Did the battery icon show it was charging while plugged in?

If you have another USB-to-miniUSB cord you could try that, just to make sure a charge is getting through.

I certainly think that it’s a hardware issue. Nothing else that can be done but a replacement here.