Technology has often been seen as a double-edged sword—sometimes distracting, other times life-saving. In recent years, wearable devices like smartwatches have gone beyond fitness tracking to become personal safety companions. One such incident recently proved how advanced technology can make the difference between life and death. A 26-year-old Mumbai techie, Kshitij Zodape, survived a near-fatal scuba diving accident in Puducherry, thanks to the Apple Watch Ultra’s emergency siren and dive tracking features.
The Diving Adventure Turns Risky
In mid-2024, Kshitij, who works for an e-commerce company in Mumbai, went scuba diving in the Bay of Bengal near Puducherry. As an experienced diver since 2020, he had gone about 36 metres underwater when an unexpected problem occurred—his weight belt came loose.
The weight belt is crucial for divers as it maintains balance and allows controlled movement under pressure. Once it came unstuck, it made Kshitij buoyant and started pushing him rapidly upward toward the surface. A sudden ascent like this is extremely dangerous as it risks lung over-expansion and severe decompression sickness.
Apple Watch Ultra Detects the Emergency
As his ascent grew uncontrollable, the Apple Watch Ultra’s sensors kicked in. The smartwatch is designed with depth and pressure measurement tools, making it suitable for adventure sports like scuba diving.
The watch detected that Kshitij was rising too quickly. At first, it displayed warning notifications asking him to slow down. However, when it noticed no corrective action, the emergency siren activated automatically.
This siren proved to be the turning point. Underwater, where visibility was poor and communication nearly impossible, the distinct high-pitched sound caught the attention of his instructor, who was swimming ahead. The instructor quickly swam back and assisted Kshitij, preventing what could have been a fatal accident.
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What Could Have Gone Wrong
If the watch hadn’t activated the siren, the consequences could have been catastrophic. Rapid ascent can lead to:
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Lung over-expansion: The air inside lungs expands too quickly, leading to rupture.
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Decompression sickness (the bends): Nitrogen bubbles form in the body, causing severe pain and possible paralysis.
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Unconsciousness underwater: A diver could faint and drown without immediate help.
Kshitij later admitted that he was unaware of the Apple Watch Ultra’s siren feature. The device not only saved his life but also gave a clear demonstration of how technology and human action combined can avert tragedy.
Apple Watch Ultra’s Emergency Siren – How It Works
Apple launched the Watch Ultra in 2022 as a rugged, adventure-ready device. It comes with multiple safety features, but the emergency siren is one of the most crucial.
Key Details of the Siren Feature:
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Emits two alternating high-pitched sounds designed to stand out from natural noises.
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Can be heard up to 180 metres away in quiet conditions.
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Works even when the watch is wet (though volume may reduce slightly).
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Keeps sounding until turned off or the battery drains.
This feature, combined with dive depth and ascent monitoring, is what saved Kshitij.
The Aftermath – A Letter to Tim Cook
Deeply moved by the incident, Kshitij later wrote to Apple CEO Tim Cook, narrating how the Apple Watch Ultra saved his life. To his surprise, Cook personally responded, saying:
“I’m so glad your instructor heard the alarm and quickly assisted you. Thanks so much for sharing your story with us. Be well.”
This personal acknowledgment highlighted Apple’s focus on how their products are not just gadgets, but life-enhancing tools.
Broader Significance – Wearable Tech as Life-Savers
Kshitij’s case is not isolated. In recent years, Apple Watches have been credited with detecting heart attacks, high blood pressure, falls, and even car accidents.
Some notable examples include:
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Detecting irregular heart rhythms, prompting early medical intervention.
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Notifying emergency contacts after a car crash or fall detection.
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Helping stranded hikers by broadcasting siren alerts in remote areas.
Such stories highlight a broader trend—wearables are evolving from lifestyle gadgets into essential safety devices.
Lessons from the Incident
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Awareness is crucial – Many users, like Kshitij, are unaware of all the safety features their devices carry. Exploring them beforehand can be life-saving.
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Technology complements but doesn’t replace training – Diving safety still depends on equipment checks and professional training. The watch acted as a backup, not the primary rescue tool.
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Adventurers should embrace smart devices – Whether climbing, hiking, or diving, rugged smartwatches and trackers provide an additional safety net.
Table: Apple Watch Ultra – Safety Features Overview
| Feature | Purpose | Life-Saving Impact |
|---|---|---|
| Dive Depth & Ascent Sensor | Tracks underwater depth and ascent speed | Prevents accidents during scuba diving |
| Emergency Siren | Emits high-pitched alarm audible up to 180m | Alerts rescuers in emergencies |
| Fall Detection | Detects sudden falls and auto-calls emergency | Saves elderly or injured people |
| Crash Detection | Identifies car accidents, alerts contacts | Sends help after severe crashes |
| Heart Monitoring | Detects irregular heart rhythms | Prevents heart attack risks |
| Emergency SOS | Sends location and help alert | Useful during remote outdoor activities |
Conclusion
The incident involving Mumbai techie Kshitij Zodape is a powerful reminder of how technology can protect human lives when combined with awareness and timely intervention. The Apple Watch Ultra’s emergency siren proved to be more than just a feature—it became the bridge between life and death in a dangerous underwater situation.
As wearable technology advances, we can expect more such stories where devices act as silent guardians, ready to step in when danger strikes. For Kshitij, the watch was not just a gadget; it became a lifeline under the sea.