https://petapixel.com/2017/12/18/leica-m10-full-frame-sensor-line-top-crop-sensors-dxomark/

$6,900 full-frame camera, but according to DxOMark, the sensor isn’t any better than Sony APS-C cameras. And it doesn’t even have autofocus.

I don’t think there’s much reason to “upgrade” from my Olympus Pen-F to Leica.