When it comes to virtual reality headsets, there are two major players on the market today: HP Reverb G2 and Pimax 4K. Both headsets offer a great experience for VR users and each have their own set of pros and cons.

Starting with the HP Reverb G2, its main pro is that it provides an immersive experience with a 114 degree field of view, 2160 x 2160 resolution per eye, 90 Hz refresh rate, 360 tracking and requires either an Intel Core i5/i7 or Xeon E3-1240 v5 processor as well as a Nvidia GeForce GTX 1080 or AMD Radeon RX 5700 graphics card (or higher). This makes it one of the most powerful Virtual Reality Headset in terms of hardware. Additionally, the headset also has ergonomic design with adjustable straps which make it comfortable to wear for long periods of time. The con here is that you need a fairly powerful computer to run this headset so if you don’t already have one then you may need to upgrade your system before investing in this product.

Next up is the Pimax 4K which offers 110° field of view, 3840 × 2160 resolution per eye, 90 Hz refresh rate as well as 360 tracking but only requires an Intel i5 processor and a Nvidia GTX 960 / AMD R9 graphics card or higher which isn’t quite up there compared to the specs required by the HP Reverb G2. However its main advantage over the other headset is that it can be used with PCs that aren't quite so powerful while still offering some decent performance. It also has adjustable straps making it comfortable to wear for extended periods too though unlike the HP Reverb G2 there are no ergonomic design features making this slightly less comfortable than its counterpart when worn for long durations at once.

Personally I prefer using the HP Reverb G2 due to its power requirements – because my computer already meets all specifications I can enjoy full immersion into virtual worlds without any worry about lag or frame rate issues. Its ergonomics also make me more comfortable during longer gaming sessions which allows me to concentrate better on what I am doing rather than being distracted by constant readjusting like I would be if wearing something without such features like the Pimax 4K. However both products offer great VR experiences depending on your needs so choose whichever best fits your budget and current setup!