The lithium–ion battery offers up to 55 minutes running time with a single charge on power level 1 without connected electrobrush (PowerUnit solo).

Its cleaning performance is described as as powerful as a conventional Miele vacuum cleaner, compared with a Miele Complete C3 cylinder vacuum cleaner (SGEF3) with STB 305–3 turbobrush for dust pickup and fibre pickup, in accordance with IEC 62885–2.

The Duoflex HX1 has a dustbag or dust container volume of 0.3 l and a weight of 3.1 kg, making it light and compact.

It uses a Hygiene filter with ComfortClean, providing 99.99 % dust retention capacity in accordance with IEC 62885–4.

Accessories included are an integrated cleaning tool, MultiFloor electrobrush HX–EB 20, HX–DB dusting brush, HX–UN upholstery nozzle and HX–CN crevice nozzle, along with the HX–AH 20 accessory storage.