The One supports QuickCharge 1.0&2.0 from Qualcomm. No 2.0 chargers are available yet, and the one that comes with the phone is QuickCharge 1.0. I'd use the one that came with it hands down, as it'll charge much faster than with a normal charger because I don't think the OneX one supports QuickCharge. Use the charger that came with the phone until they release the 2.0 version, then go buy one of those.
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