Ultrahuman's Tracker Ring Requires No Subscription, and It’s Under $300 for Prime Day
You have until October 21 to buy the Ultrahuman smart ring. Or check out one of these other fitness tracker deals for Prime Day.
Link :
https://www.wired.com/story/ultrahuman-prime-day-2025/
Link :
https://www.wired.com/story/ultrahuman-prime-day-2025/
