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Once Motorola's flagship phone, the X went through an episode of multiple personality disorder in 2015 (remember the Style, Play and Force?) only to be replaced at the top by the Moto Z last year. Feeling at home in the midrange, the X-series is now in its fourth generation. Meet the Moto X4.
Source: https://www.gsmarena.com/motorola_moto_x4-review-1691.php