IWO3 plus smart watch firmware 2018 update 1

IWO3 plus(IWO 4) cable 4 pins charger version smart watch firmware download

MTK2502 IWO Smart watch

feature:

  1. new clock interface
  2. the battery optiomization
  3. more stable heart rate monitor
  4. other new features.
IWO 3 plust IWO4 smart watch firmware down load

download IWO3 plus IWO 4 smart watch firmware

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