Activ5 Tiny Gym in your Pocket

£129.99/$139.99 amazon.co.uk 

If you want to stay toned, but don’t have space for dumbbells then this device provides an all-over workout, in your pocket. It is essentially a pressure pad that you can connect, via Bluetooth, to the Activ5 Training App. After a quick and easy set up process in which your strength is measured, you’ll be presented with routines tailored to your ability. It’s an amazingly simple way of keeping in shape but it’s utterly compelling as the routines are more like fun games on your iPhone screen. It also comes with an iPhone training stand.