Watch type: 4G Android smartwatch. Battery capacity: 800mAh. Support bands:GSM:B2/B3/B5/B8 WCDMA:B1/B2/B5/B8 LTE_FDD:B1/B2/B3/B5/B7/B8/B20 LTE-TDD:B38/39/40/41(100MHz). SIM card type: SIM card (small card Nano SIM card).
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