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Samsung Gear VR is a [[Virtual Reality]] [[head-mounted display ]] developed by [[Samsung]] and [[Oculus VR]]. It is [[Oculus Rift]]'s mobile device. To use Samsung Gear VR, the user needs to mount a [[Galaxy Note 4]], [[Galaxy 6]] or [[Galaxy 6 Edge]] inside it. The smartphone serves not only as Gear VR's screen but also as its computer. Even though it requires Galaxy Note 4, Gear VR has [[Oculus Rift]]'s head-tracking technology built within, allowing it to quickly and accurately track head movements. This technology differentiates Gear VR from the likes of [[Google Cardboard]]. The latter relies on smartphone's sensors to track head movements, which are less accurate and has higher latency. Unlike the [[Oculus Rift]], Gear VR is completely mobile. It doesn't need to be connected to a computer.