Such devices have been marketed in the UK and IMHO are verging on a con trick.
They are indeed based on conventional air conditioning/dehumidifying technology.
The air is cooled in order that the moisture will condense, this requires considerable energy input relative to the volume of water produced.
If grid powered the idea is essientialy pointless as any disaster is liable to interupt grid power.

PV power is certainly possible, but would be a substantial investement. The power consumption for the smallest unit is several hundred watts, implying thousands of $/£ to PV power it.

Any such complicated technology is liable to failure, making at least one spare advisable.

Possibly worthwhile for military use in arid regions, but most unlikely to be viable for civilian use.
Rainwater capture is much lower technology for domestic use, with a great deal of storage so as to ride through any abnormaly dry years.