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Oppo Watch S2 Launches Sept 22 With FatMax Mode and ECG

Lena Fischer 2 min read

Oppo Watch S2 launches Sept 22 in China with ECG, wrist temperature, and FatMax mode. Weighing 34.4g, it offers up to 10 days of battery life.

Oppo Watch S2 Launches Sept 22 With FatMax Mode and ECG
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Oppo is launching the Watch S2 smartwatch in China on September 22, offering buyers a lighter and thinner option for daily fitness tracking. This release matters because it introduces specific health monitoring features like ECG and wrist temperature sensors that were not standard on previous models. Users who prioritize precise heart-rate data during workouts will find the new FatMax mode particularly relevant for managing exercise intensity.

New smartwatch adds wrist temperature monitoring and FatMax mode

The device retains the familiar round-dial design of its predecessor but significantly reduces the physical footprint to improve comfort. It measures just 8.9mm thick and weighs only 34.4 grams, making it one of the slimmer options in the current market. Oppo offers the watch in three distinct colorways: Vibrant Orange, Misty Powder, and Mountain Shadow Grey.

Specifications

  • Thickness: 8.9mm
  • Weight: 34.4g
  • Colors: Vibrant Orange, Misty Powder, Mountain Shadow Grey
  • Health Features: ECG, wrist temperature, blood oxygen, heart-rate tracking, FatMax mode
  • Heart Rate Accuracy Claim: 98.8% exercise heart-rate accuracy

Health monitoring capabilities form the core of the Watch S2's value proposition, with support for ECG, blood oxygen, and continuous heart-rate tracking. The optical sensor claims a 75% improvement in resistance to interference, which Oppo says results in 98.8% exercise heart-rate accuracy. These performance metrics are manufacturer claims that have not yet been verified by independent testing labs.

The watch introduces a FatMax mode that calculates personalized fat-burning zones and displays estimated fat burned in grams during workouts. Battery life varies based on usage patterns, lasting up to 10 days in max mode, seven days with regular use, and four days with the always-on display enabled. We remain skeptical of the gram-based fat display accuracy, as studies generally show smartwatches are unreliable for precise calorie burn measurement.

We looked at Oppo Find X10 Leaked With Dimensity in our earlier Oppo coverage to track the brand's broader hardware strategy. The Watch S2 focuses on refined health metrics and battery efficiency rather than introducing a completely new form factor. Buyers in China can expect the device to hit shelves on September 22, while international availability and pricing details remain unannounced.

Source: NotebookCheck

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