Personal safety is becoming a bit of a trend for wearable tech at the moment. The Mangos smart ring is the latest to throw its hat into the ring in the bid to help make it easier for women to raise the alarm if they feel in danger.
Mangos works in a similar fashion to the Nimb smart ring we wrote about recently, with the ring face doubling as a button that users press when they're feeling threatened.
With a vibrating buzz to tell your phone that the ring has been activated, it'll send a customised SOS message via text to friends with a link to a map of your location allowing them to respond or to dial for help.
Read this: The best smart rings to look out for
The three second activation should ensure you don't send an alert by accident, but if that does happen, you can cancel the alert from within the companion app within 30 seconds.
Where Mangos differs from Nimb and other panic alarm packing smart jewellery is the form factor. Despite hosting a tiny computer and Bluetooth module to communicate with your phone, the ring's face has roughly the same radius of a dime.
The band has also been designed to include every ring size letting you can find the perfect fit. It's also water resistant so it should be suitable for washing the dishes or walking in the rain.
In terms of battery life, the low-powered smart ring will work for four hundred activations before the battery runs out and remains switched off when it's not in use.
Mangos is heading to Kickstarter on 21 June where it hopes to raise $30,000 to make the first run of production possible. A $65 pledge will get you one but we don't have details yet of when it plans to ship if it hits that target.
How we test
By Michael Sawh
Michael Sawh has been covering the wearable tech industry since the very first Fitbit landed back in 2011. Previously the resident wearable tech expert at Trusted Reviews, he also marshaled the features section of T3.com.
He also regularly contributed to T3 magazine when they needed someone to talk about fitness trackers, running watches, headphones, tablets, and phones.
Michael writes for GQ, Wired, Coach Mag, Metro, MSN, BBC Focus, Stuff, TechRadar and has made several appearances on the BBC Travel Show to talk all things tech.
Michael is a lover of all things sports and fitness-tech related, clocking up over 15 marathons and has put in serious hours in the pool all in the name of testing every fitness wearable going. Expect to see him with a minimum of two wearables at any given time.