Galaxy Watch 5 Pro user sustains overnight wrist blisters after battery drains

A Samsung Galaxy Watch 5 Pro user reported suffering severe skin burns and blisters after wearing the smartwatch to sleep on October 22, 2026. According to a post shared on Reddit by user u/ksima_03, the three-year-old wearable went to bed fully charged but was completely drained and unresponsive by morning. [2][3][4]

The rapid overnight discharge of the watch's 590mAh lithium-ion battery likely generated substantial heat, preventing the device from powering back on. While common wearable skin reactions typically stem from contact dermatitis, photos shared by the user showed fluid-filled blisters and marks that resemble burns. Outlets noted similar isolated overheating reports across other Samsung devices, including the Galaxy Watch 7, Watch 8, and Ultra models. [2][3]

The incident has revived lingering consumer anxieties regarding battery safety and overnight sleep tracking. Samsung has not commented on the matter, though analysts note such hardware failures remain rare across millions of active devices. [3][4]