HP Smart Tank Plus 551 Wireless All-in-One

Very low running costs. Great print quality. Small footprint. Decent volume rating.

Non-duplexing print engine. Ink bottles not keyed to corresponding onboard tanks. Lacks automatic document feeder.

The HP Smart Tank Plus 551 bulk-ink AIO prints well and at very low running costs, though its lacks notable productivity and convenience features, compared with its competitors.