Сравнение NIU C21A с Allview P5 Energy, Allview P6 Energy, Allview P6 Pro
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NIU C21A 
Allview V1 Viper i4G -
NIU C21A 
Allview X2 Soul Lite -
NIU C21A 
Allview X2 Soul Style -
NIU C21A 
Allview X2 Soul Style + Platinum
