If you are comparing apples to apples, an alternative to these two new age launch monitors would be the Foresight GC Quad. All deliver very similar parameters, but at a price.
However, if we are talking more affordable alternatives for the general golfing population than here are a few: 1) skytrack , 2) Mevo or Mevo Plus 3) rapsodo, 4)Ernest sports Es14, 5) swing caddie sc200. These machines don’t provide the same or as much information as the higher priced monitors, but can be very beneficial for the general golfing population.