A Whoop band for tracking vulnerable relatives? Fitbit founders launch new screenless wearable with GPS, heart monitoring, sleep tracking and more — and even aspeaker so you can check in

Whoop wearable next to the new Luffu Link wearable.

• Fitbit founders are launching a new screenless fitness tracker
• The Luffu Link is designed for caregivers, bringing all your relatives' health data to one place
• It's available for pre-order now, and will roll out early next year

Watch out Whoop, there’s a new screenless health and fitness wearable on the way — and it’s coming from the founders of Fitbit.