A Detailed Comparison: OnePlus Watch 3 (43mm) vs Google Pixel Watch 3 (41mm)

I’ve tested both the 43mm and 47mm versions of the OnePlus Watch 3, and in this article, I’ll dive into how the smaller iteration stacks up against the 41mm Google Pixel Watch 3. While both smartwatches boast sleek designs, lightweight frames, and solid health tracking capabilities, they cater to different user needs. Let’s explore the specifications, performance, and unique features that differentiate these devices.

Design and Comfort

When it comes to design, the OnePlus Watch 3 (43mm) presents a straightforward yet appealing round face within a robust stainless steel casing. It achieves a comfortable fit that feels secure on the wrist whether you’re exercising or sleeping. Weighing only 38 grams, you can easily forget you’re wearing it.

In contrast, the Pixel Watch 3 leans into a more stylish aesthetic. Its domed Corning Gorilla Glass melds beautifully with the aluminum body, resulting in a weight of just 31 grams, making it one of the lightest options available. The minimalist approach truly shines here, especially with the newly introduced 45mm model, although for this comparison, I focused on the 41mm variant.

Both watches sport a crown and a flat physical button. The OnePlus has slightly sharper edges, while the Google device opts for smooth, rounded contours. Notably, the OnePlus takes the display size crown with a 1.32-inch screen compared to the Pixel’s 1.2 inches. Both displays peak at an impressive 2000 nits, but the added real estate on the OnePlus makes for easier data readability.

Health Features and Sensors

Diving into health tracking, the Pixel Watch 3 boasts a sophisticated array of sensors, including ECG, skin temperature monitoring, and even cEDA for stress levels, significantly enhancing its health metrics roster. Its partnership with Fitbit offers premium insights into wellness, although some of these features may be hidden behind a subscription paywall.

On the other hand, the OnePlus Watch 3 provides essential health tracking—heart rate, blood oxygen levels, and sleep metrics—albeit without the advanced capabilities of the Pixel. It backs up its data with dual-frequency GPS that locks quickly, proving reliable even in dense environments. Unfortunately, core features like wrist temperature and vascular metrics are exclusive to the larger 47mm model.

Sports Tracking Capability

Both devices shine in the sports tracking department, but they cater to different profiles. The OnePlus Watch 3 supports over 100 workout modes, capturing detailed metrics like cadence, stride length, and VO₂ max. In my comparisons, it accurately tracked workouts, matching a Garmin watch’s heart rate readings within a beat or two, demonstrating impressive GPS accuracy.

The Pixel Watch 3 may track fewer activities, but it incorporates automatic workout detection and offers strong performance for casual runners. Its GPS performance remained reliable, matching a high-end Garmin for distance accuracy on a 10K run. However, it lacks the in-depth performance insights present in the OnePlus, focusing instead on Fitbit’s Daily Readiness Score.

While neither watch rivals the extensive capabilities of dedicated sports watches like those from Garmin, they excel as health and fitness companions.

Smart Features and Usability

Both smartwatches run on Wear OS 5, offering a smooth navigation experience with access to a wealth of apps through the Play Store. Users will find staples like Google Assistant, Wallet, and Maps readily available.

The Pixel Watch 3 leverages additional features such as ultra-wideband (UWB) support and optional LTE, enriching the overall user experience and providing tighter integration with Google services. Voice commands are seamless, and call quality is commendable.

On the music front, the OnePlus Watch includes 32GB of storage, but transferring music requires third-party apps, while the Google counterpart allows offline music via streaming services—albeit tied to subscription fees. Users can upload their tracks to YouTube Music for accessibility, albeit with some extra steps.

Battery Life: A Key Differentiator

Battery life presents a critical difference between the two devices. The Pixel Watch 3 is equipped with a 307 mAh battery, yielding around 24 hours under typical usage. Its Battery Saver mode can extend that to about 36 hours, but regular charging is necessary.

In contrast, the OnePlus Watch 3 shines with a larger 345 mAh battery, providing up to 60 hours of regular use. The power-saving mode can even stretch that to seven days, and a 10-minute charge equals a full day of use. For users who prioritize longevity and ease, the OnePlus offers a more forgiving experience.

Specs Comparison

Here’s a concise breakdown of their specifications to help settle the debate:

In this detailed comparison, each watch offers unique benefits tailored to different lifestyles. Users looking for reliability and extensive battery life may favor the OnePlus Watch 3, while those wanting a more advanced health tracking ecosystem may lean towards the Pixel Watch 3.