Motorola on Thursday unveiled a new smartphone that consumers can personalize with a choice of colors and materials, hoping to stand out in a crowded market and justify the $12.5 billion that Google Inc paid for the ailing handset maker. The highly anticipated "Moto X" marks the cellphone maker`s first flagship device since Google bought the company in 2012, and is its latest attempt to break into a smartphone market dominated by Apple Inc and Samsung Electronics. The phone`s customization options are a novel touch which may appeal to fashionistas, analysts said. But some analysts questioned whether the Moto X offers the kind of technological breakthroughs that will vault Motorola back into the top rungs of the mobile rankings.