There isn't much that we know about Walmart's new 4K Pro Google TV streaming device but we can confirm from the moniker that this will be an upgraded model from last year's model. It could come with better hardware and 4K performance as compared to the regular 4K version. Since the other models are also priced affordably, this one too is expected to come with a pocket-friendly price tag.
The Onn Google TV 4K Streaming Box works mostly like the Google Chromecast. It has a similar UI with content recommendations and popular apps for streaming. You also get Google Chromecast and Google Assistant built-in. The 4K streaming device comes bundled with a white remote that has dedicated buttons for YouTube, Netflix, and Disney+.
It also comes with HDR10 but misses out on Dolby Vision, which is present on the Google device. The new 4K Pro model might come with Dolby Vision as one of the upgrades but this is just speculation for now.