Accuracy

3 articles

A modern fitness tracker on a wrist displaying an accurate heart rate reading, symbolizing the precision of wearable health technology.

How accurately do fitness trackers measure heart rate?

The Apple Watch Series 11 boasts an average heart rate error of less than 1%, delivering medical-grade precision from a consumer device, according to CNET .

Kai Kealoha·July 1, 2026

A smartwatch screen showing a heart rhythm graph, symbolizing the accuracy of wearable health data in a medical context.

Health & Fitness

Your Smartwatch Health Data Is More Accurate Than You Think, But Be Wary

Smartwatches can detect atrial fibrillation with over 94% sensitivity.

Kai Kealoha·June 10, 2026

Abstract representation of Gemini AI processing, showing data streams and a central core, hinting at its advanced capabilities and potential limitations.

The Edit

Gemini AI agent performance has accuracy limits, study finds

Google has slashed the price of its new AI Ultra plan by 60%, from $249.

Sofia Garcia·June 2, 2026