Bolt receiver is based on the Bluetooth Low Energy 5.0 standard.
Unify receiver uses a proprietary 2.4 GHz wireless radio frequency
Unify receiver and other 2.4 GHz receivers have security flaws
They aren't compatible with each other
Source: Logitech
Over the holidays I purchased some Logitech gear and was confused as to why they weren’t being recognized. It turns out Logitech has developed a new type of receiver. A quick google search should’ve gave me an answer in 10 seconds, but instead it took me 5+ minutes to get the answer I was looking for. I don’t need the chronology or people’s opinions or how you can use use an adapter to use a different port. I just need to know wtf they are.
I imagine other people might have same question. Here’s the drop dead simple explanation.