Okay, so I’ve been using this little gray-white gadget for a few weeks now, and here’s the tea: it’s legit. The OLED screen? Crisp. Like, ‘no-squinting-required’ crisp. I tested it against my Fitbit for pulse rate, and it matched perfectly—no shady business.

I bought this during my mini COVID panic (we’ve all been there), and it’s been a sanity-saver. The perfusion index (PI) feature is low-key genius—helps me figure out which finger gives the best reading. Pro tip: skip the nail polish for accurate results.

The included case and lanyard? Chef’s kiss. For $25, it’s a steal. My only gripe? The display doesn’t rotate, but honestly, I don’t care enough to dock points. Nurses at my gym keep side-eyeing it—jealousy looks good on them.

PSA: Not FDA-approved, but for casual use (hiking, freaking out over SpO2 levels), it’s golden. Just don’t perform surgery with it.