Moto X4 review: Motorola's 'basic' phone is a good value for $400 | Mashable
Moto X4 XT1900-1 32GB Smartphone PA8S0024US B&H Photo Video
Motorola Moto X4 review (updated): Standout midrange Android phone is even cheaper - CNET
Moto X4 Android One review: return of the X - Android Authority
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New Moto X Review
Google and Motorola debut Android One Moto X4 for Project Fi | ZDNET
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Motorola Moto X review
Moto X4 gets an Android One version through Project Fi - GadgetMatch
Motorola Moto X4 Review, Specs, Price, And Launch Date