Amazfit Helio Ring vs Ultrahuman Ring Air: Which smart ring is best for you?
The Amazfit Helio Ring and Ultrahuman Ring Air go head-to-head in design, tracking, and value. One’s premium, one’s ...
UltraHuman Ring Air review: Fitness tracking on your finger
The UltraHuman Ring Air comes with a charger and cable in the box, though there's no AC brick. Sliding the ring onto the ...
Amazfit Helio Ring review: a cheaper Oura alternative if sleep is your top priority
The Amazfit Helio Ring is rated at 10 ATM water resistance, meaning it can handle surface swimming and snorkeling, but not scuba diving. In practical terms, it’s safe for most daily water exposure, ...