A mother from Cairns, Australia, will never look at her iPhone 6S the same way again. In a dramatic turn of events back in March, Stacey Gleeson was able to successfully resuscitate her sick daughter Giana and call for an ambulance at the same time, thanks to her iPhone 6S' "Hey Siri" feature.

According to Gleeson, the incident began when she noticed that her 1-year-old daughter, who was suffering from a chest infection and bronchiolitis at the time, had turned blue in the baby monitor. She immediately ran up to her daughter, dropping her iPhone along the way.

Seeing that her daughter was not breathing, Gleeson immediately began administering CPR. Since her phone was out of her reach, she opted to use the iPhone 6S' "Hey Siri" function in order to call paramedics to her house. Siri was able to get in touch with emergency services, who communicated with the mother through speakerphone.

Though Giana was already conscious by the time paramedics arrived in the house, she was told that every second after the child stopped breathing was very important. Thus, the few seconds she saved while utilizing the "Hey Siri" feature ultimately helped save her daughter's life.

"I've only had the phone since the start of the year. I had played around with Siri, I thought it was a fun feature. Now I have that feature turned on all the time and it will never be turned off again," she said.

While the specs of the iPhone 6S are lagging in terms of raw power when compared to its main rivals in the smartphone industry, it is nonetheless equipped with a number of useful features and upgrades from its predecessor. One of these upgrades, the "Hey Siri" function, which summons the firm's popular A.I.-powered voice assistant by uttering a trigger phrase, has been lauded as an extremely convenient feature among iPhone users.

For Stacy Gleeson and her daughter, the feature is not just a simple convenience.

"Saving me the trouble of having to physically dial emergency services was a godsend," Gleeson said.