RAM RAM：2GB； ROM：16GB. Support frequency band GSM： 850 / 900 / 1800 / 1900. Heart rate Zhanheng 1820. health Heart rate, blood oxygen, step counting. Watch case LDS. Head size 46.5 46.5 11.8mm. gesture Raise your hand to light up the screen and turn on the phone to start step counting. Leia Mais
RAM RAM：2GB； ROM：16GB. Watch case LDS. gesture Raise your hand to light up the screen and turn on the phone to start step counting. LTE-FDD:B1 / B2 / B3 / B5 / B7 / B8 / B12 / B17 /B20. Function introduction. Leia Mais