Amazon reveals Ring rival gadget with DOUBLE battery life – and trick means you won’t need recharge for four years

AMAZON has unveiled a new smart camera rival to its already popular Ring gadgets – and it has more than double the battery life.

The Blink Outdoor 4 has motion detection, live view, a wider field-of-view than its predecessor and works with Alexa.

BlinkThe gadget also boasts Blink’s new person detection feature, which uses ‘computer vision’ to detect human visitors or passerbys[/caption] BlinkLike Ring, Blink has its own app that you can use to operate devices with[/caption]...