XDJ RX2
- Is a standalone unit (you don't need a laptop to play from it although you play from a laptop if you wish)
- 2 channel mixer
- Has a 7" display built into the unit
- Doesn't have full size jogs
- 1x usb laptop connection
DDJ-1000
- Is not a standalone unit (you have to connect a laptop)
- 4 channel mixer
- No 7" display built in but there is a customisable display in each of the jogs
- Jog wheels are full size (same as a CDJ-2000)
- 2x usb laptop connections (so two people could play on separate laptops)
The mixer in both of these units is standalone so you could connect turntables or CDJs to them. If you did this on the DDJ-1000 you wouldn't have to connect a laptop to play from the CDJs or turntables that you have connected to it.