Knock Code, the security feature that lets you unlock your device using a combination of taps on the screen, is one of the nicest things about the new LG G3. While it may seem a bit counterintuitive to tap on a sleeping screen, Knock Code has the advantage that it wakes up and unlocks your device with one action, unlike other unlocking methods that require you to turn on the device first.

If you prefer other unlocking methods, LG wants to convince you that Knock Code is better, and is doing so with these four promo clips.

What’s your security measure of choice and why?

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