Zhè zhǒng yídòngshìdiànhuà yǐjīng bèi zhìnéng shǒujī qǔdài le.
This kind of mobile phone has been replaced by smartphones.
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Slightly formal/technical. In everyday speech people say 手机 (shǒujī) 'hand-machine' or 移动电话 (yídòngdiànhuà). 移动式 with the 式 'type/style' suffix sounds like spec-sheet or document language.