Does the Prime 4+ work without a laptop?

Yes. It runs Engine DJ on its built-in screen and plays from USB drives, SD cards or Wi-Fi streaming, so a laptop is optional.

How does it compare with the Pioneer DJ XDJ-RX3?

The Prime 4+ has four channels and more streaming sources; the RX3 has two channels but a layout closer to club-standard Pioneer gear.

It is built around Engine DJ. It works as a controller for some software, but its main appeal is standalone use.

The controller, a power cable, a USB cable and documentation. USB drives and headphones are not included.

Yes. It has built-in effects with per-channel controls, plus sweep effects and filters.

Yes. The four channels and dual-layer decks let two DJs share the unit, each with their own headphones and outputs.

At Planet DJ, for $1,799.99, 18% under what the other stores charge, as of our latest check.

9 stores we checked sell it, including Sweetwater, Musicians Friend, Guitar Center, Planet DJ, Alto Music.

$1,799.99at Planet DJChecked 19 h ago

18% under what the other stores charge

Compared across 9 stores. Prices are checked against each store and labelled with when.

It checks today's price at every store, compares the alternatives and answers in about a minute.