A: The V3 features highly effective switch activation, advanced airflow, and 2g capability. The V4 is a more recent generation with much more precision and battery enhancements. Switch V4 is the final word Answer for gurus who be expecting the ideal System to thrive. Hardly ever skip out on https://boutiqswitchdisposable41852.getblogs.net/70594860/an-unbiased-view-of-boutiq-switch-v4