In the latest episode of "Bizarre Inventions," LG is patenting a smart stylus pen that can potentially replace your phone. Yes, we know what you think, but upon closer inspection the Korean company might be up to something here.

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The key feature of the stylus are its two displays. It incorporates a small one for app shortcuts, notifications and time while the bigger one is a of the flexible variety. A dedicated button rolls out and retracts the display so you can use it as a conventional smartphone when needed. It can run all the regular apps and can even be used for browsing and texting. We suspect that LG envisions display similar to its 65-inch roll-able TV.

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But aside the displays, the pen carries a plethora of sensors that are usually found in modern smartphones. We are talking gyro, e-compass, proximity, pressure, camera and even eye-tracking sensors. The much-needed fingerprint reader isn't left out as well while the microphone and earpiece make the device a full-fledged handset.

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What's more, the patent hints at an interesting feature that allows the pen to be paired with any smart device like a phone or a tablet. Writing on whichever surface makes the writing appear on the paired device's screen.

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