These phones are not the VERY NEWEST (each came out during the fall of 2013) models available but should meet your locking requirement and unlocking does not void the warranty
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www.motorola.com/us/cons ··· zon.html»
www.motorola.com/us/cons ··· ion.htmlThese would have to be bought outright from Motorola rather than obtained subsidized from Verizon.