At second glance you can see some differences: The way the microphone is lit, the bump and controls at the bottom and the viewfinder. Of course it could always be fake. Let’s see tomorrow.
These are the VG-20 specs:
16MP Exmor sensor
RAW image capture capabilities
Improved audio controls
1920×1080 24p, 60i and 60p video capabilities (AVCHD 2.0)
The VG-10 had a large, APS-size CMOS Sensor.