Storage: 3GB RAM + 32GB ROM (expandable via TF card). 4G LTE: FDD-LTE B1/B3/B7/B8 | TDD-LTE B38/B39/B40/B41. OS: Android 8.1. USA: Sprint, Speed Connect (4G only). 3G: WCDMA B1 (2100 MHz) / B8 (900 MHz).
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