The 5 Best Smart Rings to Buy in 2025

If you care most about sleep and recovery, the Oura Ring 4 is still the one everyone else is chasing. The ring packs multiple LEDs, temperature sensors, and a 3D accelerometer into a slim titanium band that’s noticeably comfortable to wear day and night. In the app, you get clear readiness, sleep, and activity scores along with surprisingly detailed data on heart rate variability, body temperature shifts, and sleep stages.

The trade‑off is cost. On Amazon, the core silver finish typically sits around $349, while colors like gold or stealth can climb noticeably higher. You also need an Oura membership to unlock the metrics that make the ring worth owning, which adds a small monthly fee on top of the hardware. If you’re okay with the subscription and want the deepest insights in a discrete form factor, it’s the top premium pick.

Oura’s ecosystem is also mature. Firmware and app updates roll out regularly, and integrations with popular health platforms make it easier to fold your ring data into a bigger wellness picture. For people who want a set‑and‑forget health tracker that’s jewelry first and gadget second, Oura Ring 4 makes a strong case despite its price.

The Samsung Galaxy Ring is built for people already living in the Galaxy ecosystem. It pairs tightly with Samsung Health, turning the ring into an always‑on extension of your phone’s wellness tools. You get sleep tracking, heart rate monitoring, and an Energy Score that blends your recent sleep and activity to suggest whether to push harder or back off.

Because there’s no subscription, what you pay up front on Amazon is basically it. The MSRP sits around $399.99, but discounts commonly drop it closer to the $300 mark during big sale events. Battery life is solid at up to about a week, and the included charging case makes topping up quick and painless.

The main limitation is compatibility. While you can use the ring with Android, the most seamless experience and feature set still live on Samsung phones. If you’re already on a Galaxy S or Fold and want an understated health tracker instead of another smartwatch, Galaxy Ring is a very easy recommendation.

Ultrahuman Ring Air targets people who care about metabolism and recovery as much as they do raw step counts. The titanium shell and epoxy inner coating make it comfortable enough to wear around the clock, and reviewers routinely call out how light it feels. In the app you’ll see sleep, strain, and recovery‑style metrics that overlap with what Oura does, but without locking essentials behind a monthly subscription.

On Amazon, pricing is competitive with other premium smart rings, typically around $349 before any coupons or limited‑time sales. The company occasionally runs promotions that bring the effective price down, but the everyday sticker still puts it in the higher tier of the market.

Battery life lands in the multi‑day range rather than true battery‑monster territory, but the trade‑off is a thin, compact form factor and a fairly rich sensor suite. If you want a high‑quality smart ring but don’t love the idea of another monthly bill, Ultrahuman Ring Air is one of the strongest options in 2025.

RingConn Gen 2 is built around comfort and endurance. The titanium alloy ring is noticeably thin and light, and paired with an efficient battery system and charging case, you can realistically go a week and a half between charges. It covers the usual smart‑ring basics—heart rate, SpO2, temperature, and activity—but also adds sleep apnea‑related monitoring that’s uncommon at this price.

The Gen 2 typically sells for about $299 on Amazon in the U.S., but early adopters and sale watchers sometimes catch it for less during promotions. There’s no subscription, so the up‑front price is the total cost of ownership unless you buy accessories.

The app doesn’t feel quite as polished as the biggest brands, and the ecosystem is more bare‑bones, but the core experience is solid for people who want a discreet, long‑lasting tracker. If battery life and avoiding monthly fees sit at the top of your list, RingConn Gen 2 is an easy ring to recommend.

The Renpho Lynx smart ring is aimed squarely at people who are curious about smart rings but don’t want to sink a few hundred dollars into one. It focuses on the basics—sleep tracking, heart rate, and daily movement—without trying to compete spec‑for‑spec with the big names. Build quality is perfectly fine for the price, but it doesn’t have the same titanium jewelry feel as Oura, Samsung, or RingConn.

On Amazon, the Lynx usually sits close to the $120 mark, and it’s not uncommon to see minor discounts. That puts it closer to a mid‑range fitness tracker than a premium wearable, which is exactly the point. There’s no required subscription, so once you’ve bought the ring, you’re done paying.

The app is more utilitarian and less slick than top‑tier options, and the insights are fairly surface level. Still, if you just want to see how a smart ring fits into your life before upgrading to something pricier, Renpho’s Lynx makes the experiment a lot less expensive.