No, this isn't a GriGri. The Kong GiGi was the first auto blocking belay device on the market (auto blocking means catching automatically when belaying directly off the anchor from above). Though it is used commonly among rock and alpine guides, it is much less popular with the general public. The GiGi has dramatic advantages and disadvantages compared with similarly designed auto blocking belay devices.
The GiGi is our favorite device for belaying fast climbers or two seconds simultaneously because of its incredibly smooth action. In the event of an emergency it is one of the easier devices from which to escape the auto block. And at 2.4oz it is one of the lightest. So why possibly haven't you heard of a GiGi? Well, it does have one huge factor going against it: it can't belay a leader.
The GiGi certainly isn't the most versatile and should not be a climber's only belay device. It is best at what it does: belay seconds.The lack of keeper loop means you must stay aware of it or risk losing it. If you're looking for an auto-block belay devices that has the advantage of belaying a leader, check out the Petzl Reverso 4 or the Black Diamond ATC Guide