#heart rate tracking
3 stories

Apple is building a screenless fitness tracker
Apple is developing a Whoop-like wearable band that could launch in 2028 if the company moves forward with the project.
The Verge · 1m

Apple Watch Ultra 4 lasted 74 hours on one charge
The new Ultra 4 packs a faster chip, better sensors, and absolutely stunning battery life for outdoor adventurers.
PCMAG · 2m

Apple Watch Ultra 4 review: Stronger battery, better tracking
The adventure smartwatch gets a major sensor upgrade and lasts longer than ever, but some features aren't ready yet.
Men's Health · 3m