Noise Luna Ring (Gen 2) review: a subscription-free Oura rival that’s solid but not standout

Noise Luna Ring (Gen 2): One-minute reviewThe Noise Luna Ring 2 is the second generation of the Luna Ring. I reviewed the original in early 2025 and liked that it felt comfortable, offered solid insights, and was impressively accurate for sleep tracking from a first-gen product.On paper, the Luna Ring 2 doesn’t sound like a huge leap forward and, visually, you’d be forgiven for not immediately spotting what’s changed. The design tweaks are subtle, and if you already own the fir