‘Count your days’: Woman’s boyfriend buys Oura ring. Then she notices something suspicious

Oura Ring, a wearable health tracker, can help you get to the bottom of your sleep, fitness, and stress. But one girlfriend warns that the device may tell you something you don't want to hear in a now-viral TikTok.

In a video with over 396,000 views, TikToker Eli Markovic (@elimarkovic) shares a clip of her and her boyfriend sitting across from each other at a restaurant. She zooms in on a silver Oura ring on her boyfriend's pointer finger.

On-screen text reads, "My man bought...