D38 4G Android GPS Watch

CHANGING WATCH CASE FREELY
4G/3G/2G NETWORK
Support below frequency:
FDD: B1 B2 B3 B5 B7 B8 B20 B28A
WCDMA: B1 B2 B5 B8GSM: B2 B3 B5 B8
Dual-core chip,LDS antenna
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