Fitness tracker failed to detect heart attack, man claims

Key facts

• Julian Davies, 43, suffered a major heart attack.
• His fitness tracker indicated he was in good health.
• The tracker reported a 'great night's sleep' before the event.
• Davies survived the heart attack.

Julian Davies, a 43-year-old man, has shared his experience of a near-fatal heart attack, emphasizing the unreliability of fitness trackers for comprehensive health monitoring. Davies stated that he believed himself to be fit and healthy, relying on his £190 fitness tracker to alert him to any potential health issues. However, instead of flagging any problems, the device reported that he had experienced a 'great night's sleep' on the night prior to his medical emergency. Shortly thereafter, doctors diagnosed him with a major heart attack. Davies survived the incident but has since spoken out, asserting that these wearable gadgets cannot be fully trusted for accurate health assessments.