Noise Luna Ring (Gen 2) review: Price and availability

The 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 first Luna Ring I don’t think this is a must-have upgrade.

But taken on its own, this is a good smart ring. A few pain points have been ironed out. The ring is around 10% slimmer, there’s a new charging case which looks great and stores multiple top-ups, battery performance has improved slightly and the app feels quicker to update. I also felt like sleep tracking was more precise this ...