The high-tech fitness mirrors are designed to encourage you to exercise more

The idea of having to watch yourself work out is unappealing to most people, including fitness enthusiasts.

When we’re sweating on a treadmill or grunting on a weight machine, we don’t look our best.

However, as any gym-goer is aware, there are always those who enjoy admiring their reflection in the full-length mirrors.

The current trend in home training – smart fitness mirrors – is likely to excite these particular keep-fit fanatics the most.

These are 6ft (180cm) or so tall vertical high-tech mirrors with a computer, internet connection, and video screen.

The idea is that you connect with an online trainer, who then appears alongside your reflection in the mirror/screen.

The mirror on the more advanced devices is equipped with cameras and speakers, allowing the trainer to view your motions and make suggestions for improvements.

Users can choose from live one-on-one or group sessions, as well as a variety of routines such as weights, Pilates, cardio, and yoga.

The video and sound on the simpler mirrors are only one-way – you can see and hear the trainer but not the other way around. Lessons are usually not live; instead, you have access to a library of workout videos that are streamed.

Whether you choose a higher-end model or a more basic one, the mirror will set you back at least £1,000 ($1,300) plus a monthly subscription.

The touch-screen mirrors are usually equipped with a number of sensors that are linked to artificial intelligence (AI) that can provide feedback on your movements and make suggestions for development.

The Vaha was the first such mirror to be sold in the United Kingdom. It was introduced on the market last year by the same-named German company. Tonal, Mirror, NordicTrack, Portl, and ProForm are some of the competitors.

“Delivering full customised, immersive sessions for body, mind, and nutritional health,” Vaha says of its mirror.