Some of realities and reasons why you profile has been lost in translation.(pun intended)
In the world of absolutes and reference, you can only use a specto device, the caveat is to do it accurately you need a CS2000 or similar.
It was found in research that a Tristimulas Colormeter can produce as accurate results, but only if the CMF matched the model CMF that the spectro uses to convert the spectral data.
When the colormeter does not natively match, the correction profile produced by the differences between the reference and the colormeter can fix the vast majority of the problem, the caveat though is no correction is perfect. There is always error.
Most are not measuring for reference sake of absolutes, displays and course controls means that method and device error differences are not important enough to show up in real world differences.
However, the limited nature of consumer spectros means that some improvement can be made to a consumer colormeter for both speed and accuracy on most given display types.
Many still use just an i1pro or i1D3 or many other basic devices, some have a life span of usefulness some don't.
In the end, the Spectro will give you reasonble accuracy for a longer life span.
A colormeter will degrade, but has a speed advantage, where the profiling will adjust for the degradation as time passes, thus gaining the speed and spectro accuracy.
As new devices, you will probably not find a large difference between the devices.