quip Metal Electric Toothbrush

Brand: quip Smart Electric Toothbrush

A slim battery brush with a metal handle, no charging base and no screen. One AAA cell runs it for roughly three months, sonic vibrations pulse every 30 seconds and stop at two minutes, and the multi-use cover clips to a mirror as a stand. The whole thing weighs little more than a manual brush and washes under the tap. Refill heads arrive by subscription every three months, which is the point of the design, though single heads are sold in three packs too.

Made for people who travel, share a small bathroom or keep forgetting to replace a brush head. It is honest about its limits: the vibration is far weaker than a Sonicare, there is no pressure sensor and no modes, so anyone with gum problems or heavy staining should look at a rechargeable brush instead.