10 Best Smartwatch With Oximeter 2026 in the United States

The Fitbit Versa 4 Fitness Smartwatch is a strong contender in the smartwatch category, especially for those focused on health and fitness tracking. One of its standout features is the SpO2 oximeter, which allows users to monitor their blood oxygen levels effectively. This can be particularly valuable for fitness enthusiasts and those keeping an eye on their health metrics.

Battery life is impressive, lasting over six days on a single charge, which means you won't need to worry about it dying mid-workout or during sleep tracking. The display quality is decent, with a 1.58-inch touchscreen that is easy to navigate, although some may find it a bit small compared to larger models on the market.

In terms of fitness and health tracking, the Versa 4 offers a comprehensive suite of features. It includes built-in GPS, heart rate monitoring, and tracks a wide range of activities (over 40 modes). The Daily Readiness Score and personalized insights help users understand when to push harder or take a break, enhancing the fitness experience. The accuracy of the heart rate monitor can sometimes be inconsistent when compared to dedicated devices.

For compatibility, it works well with both iOS and Android devices, making it versatile. Its water resistance up to 50 meters means it can handle swimming and showers, adding to its durability.

On the design front, the Fitbit Versa 4 is comfortable to wear throughout the day, although its aesthetic may not appeal to everyone. The option to customize watch faces is a nice touch, allowing users to express their style.

As for pricing, it's competitive considering the features offered, though there are alternatives that may provide similar functionalities at a lower cost. The Fitbit Versa 4 is well-suited for fitness-focused users looking for a reliable smartwatch with robust health tracking features, but some may desire more precise metrics or a larger display.

The Fitbit Sense 2 is a robust smartwatch designed for health and fitness enthusiasts, particularly those looking for advanced features to monitor their well-being. One of its standout features is the SpO2 oximeter, which provides good accuracy in measuring blood oxygen levels. This can be particularly beneficial for users interested in tracking their respiratory health.

Battery life is impressive, lasting more than six days on a single charge, which is great for those who want to wear their watch continuously without frequent charging interruptions. The display quality is decent, with a clear interface that is easy to navigate, even for less tech-savvy users.

In terms of fitness tracking, the Sense 2 excels with built-in GPS, heart rate monitoring, and over 40 exercise modes. Features like the Daily Readiness Score and Active Zone Minutes help users stay motivated and informed about their activity levels. The smartwatch also offers comprehensive sleep tracking and stress management tools, making it a great option for anyone looking to improve their overall health and wellness.

Compatibility is a strong point as it works seamlessly with both iOS and Android devices, allowing users to receive notifications, calls, and texts. Moreover, the inclusion of Amazon Alexa and Fitbit Pay adds convenience for everyday tasks.

On the downside, while the smartwatch boasts numerous health features, some users might find the app interface a bit overwhelming initially. Additionally, while it's water-resistant up to 50 meters, care should still be taken to avoid exposure to extreme conditions. The design is generally comfortable, but its larger size may not suit everyone's taste.

The price point may be on the higher side for some, so potential buyers should consider if they’ll fully utilize its advanced features. Those interested in a comprehensive health-tracking device will likely find the investment worthwhile.

The Amazfit T-Rex 3 is a rugged smartwatch built for adventure enthusiasts. It features a bright AMOLED display with up to 2,000 nits of peak brightness, making it easy to read in any lighting condition. It also includes a glove mode for usability during cold weather activities. The battery life is outstanding, lasting up to 27 days with typical use and offering various GPS modes for extended adventures, up to 180 hours with reduced settings.

This smartwatch supports over 170 fitness modes and includes AI-generated training plans and real-time performance updates, making it a versatile companion for a wide range of activities. Its built-in GPS, dual-band positioning, and support from 6 satellite systems ensure accurate tracking of your movements, and the free global maps enhance navigation capabilities. The T-Rex 3 is extremely durable, with a military-grade body capable of withstanding extreme temperatures and water-resistant up to 100 meters, suitable for activities like surfing and freediving.

Compatibility with both Android and iPhone ensures broad usability, while privacy protection measures safeguard user data. The watch's design is rugged and may not appeal to those looking for a sleeker, more fashion-forward accessory. Priced on the higher end, it might be considered expensive for casual users but justifiable for those needing a sturdy, feature-packed smartwatch for demanding environments.