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TheApple Watch Ultrais the company ’s endeavor at making a ruggedise fitness tracker designed for extreme sports , testify in its emergency features — the Apple Watch Ultra is the only Apple Watch to feature an 86 - decibel emergency , Siren . Through the many iterations of Apple Watches over the years , Apple has asserted market control in the consumer smartwatch space . The ship’s company has viewed the smartwatch as a fitness and wellness product first and first , which is made unclouded by features like fondness pace and blood oxygen sensors . However , the received Apple Watch has n’t penetrated theextreme sports and fitness smartwatch mart , which is precisely the company ’s target sector with the Apple Watch Ultra .
Siren is far from the first Apple Watch feature film designed to alarm first responders in an emergency . Every Apple Watch ships with an Emergency SOS mode that can call for help and notify family members during an parking brake . These potentially life - deliver features often go unnoticed but can be critical if needed . Holding the power button on an Apple Watch for five secondswill activate Emergency SOSand connect with the relevant authorities . For cellular Apple Watches , this will ferment anytime there is a connection ; Apple Watches without cellular must be in the image of an iPhone for Emergency SOS to work .
relate : Apple Watch Ultra — All The Specs & Rugged Features , explain
While Emergency SOS is utile for contacting first responders and relevant authorities in an hand brake , the Siren is designed with an entirely different role in thinker . The Siren is undivided to theApple Watch Ultraanduses heavy — and more — speakers . The Siren produce an 86 - decibel sound intend to alert people nearby to a person in distress . This works well when there is limited or no cellular connectivity . For case , if a hiker take a free fall and ask help , theSirencan alert people nearby to the tramp ’s localisation . But can the Apple Watch Ultra really produce a sound that loud ?
How Loud Is The Ultra’s 86-Decibel Siren?
After the Siren is actuate , it produce a continuous 86 - dB sound that reduplicate at set intervals . The Siren will keep playing until the Apple Watch Ultra ’s battery runs out orthe wearer close it off . Apple say the Siren is loud enough to be heard up to 600 substructure away in certain situations . For character reference , the 86 - dB sound is like to that of a liquidizer or milling simple machine in operation , according to a subject byPurdue University . It pedal between two different sounds that are recognisable and not typically found in nature to alarm passersby to an emergency .
Depending on theApple Watch Ultra ’s assault and battery percentagewhen the Siren is trip , it can last up to several hours . It cycles between a elementary speech sound intended to be a distress signaling and a interpretation of the universal SOS figure . When the Siren plays , it will also cycle between volumes to make a distraint strait that ascends in volume . Due to the loudness of the Siren , it is only recommended for usage in an emergency . carry the Siren near a person ’s ear or playing it indoors could damage hearing . TheApple Watch Ultra’sSiren is another smartwatch lineament that user hope will never be want but could be life - carry through in an emergency .
Source : Apple , Apple Support , Purdue University
