The Panasonic HC WX970 is Panasonic's flagship 4K consumer camcorder. It has a several features that are unique to it and include not one but two cameras with the second one being mounted on the outer edge of the fold out screen. This allows you to video the subject and yourself or anything else that is in view from the second camera.
The second lens is not 4k but another trick which the WX970 has is the ability to link vis WiFi to a mobile device like an iPhone or Android and use that as the second camera instead of the built in one. Now you can be recording from two completely different places at the same time so long as you can maintain a wireless connection.
The Panasonic is also the first camera to feature real-time HDR or High Dynamic Range video but only in 1080p mode and not 4k. When filing in high contrast situations, HDR mode aims to give you footage that will be equally exposed even if parts of the scene would normally be either under exposed or over exposed by blending two different exposures together to get a balanced video.
Panasonic Lumix DC-G90 is a mid-range 20MP Micro Four Thirds mirrorless camera. Panasonic says it's designed to be equally adept at both stills and video, though I don't wholly agree at least because of the maximum allowable shooting of 4K video at 25p and 30p in US model.
It offers an extensive degree of direct control, a flip-out touchscreen and in-body stabilization: a combination that's unusual at this point in the market. This is enough to make it an attractive enthusiast stills camera but a significant video crop undermines its video-making credentials.
20MP Four Thirds CMOS sensor
9 fps shooting with AF-S, 6 fps with AF-C
UHD 4K at 25p (30p and 24p for the G95)
Unlimited video capture (up to capacity of card)
Headphone and Mic sockets
V-Log L gamma profile (8-bit only)
L. Monochrome D (high-contrast mono mode)
4K Photo mode with auto marking and sequence composition
Live View Composite mode for multi-shot long exposure images