Oppo Watch S2 Specs Confirmed Ahead of September 22 Launch: FatMax Mode, 10-Day Battery

Oppo has confirmed full specifications for the Oppo Watch S2 ahead of its official unveiling on September 22, 2026, revealing an ultra-thin design and a new “FatMax” fat-burning mode aimed squarely at fitness-focused buyers, Gizmochina reports.

Oppo Watch S2: Design and Build

The Watch S2 measures just 8.9mm thick and weighs 34.4g without the strap, keeping it in line with Oppo’s push toward slimmer wearables that started with the original Oppo Watch S. It retains the round dial look and will launch in Vibrant Orange, Misty Powder, and Mountain Shadow Grey colourways.

Battery Life and Health Tracking

Oppo is promising up to 10 days of battery life on a single charge, dropping to roughly 7 days with normal use and around 4 days with the always-on display active. On the health side, the Watch S2 packs ECG monitoring, a wrist temperature sensor, blood oxygen tracking, and continuous heart rate monitoring, with Oppo claiming 98.8% exercise heart-rate accuracy thanks to an optical sensor that handles interference 75% better than before.

FatMax Mode and Connectivity

The headline software feature is FatMax, a fat-burning mode that calculates a personalized heart rate zone and tracks fat burn in real time during workouts. The watch also supports dual-device pairing and Watch Fluid Cloud, which surfaces live updates for food delivery, ride-hailing, and navigation directly on the wrist — a feature set that builds on what Oppo introduced with the Oppo Watch X2.

Price and Availability

Oppo hasn’t announced India pricing yet, but the original Oppo Watch S launched at 1,499 yuan (roughly €259) in China, giving a rough sense of where the S2 could land. A global rollout typically follows the China launch by a few weeks, alongside other Oppo devices like the recently confirmed Oppo Reno 16 series.

FAQ

Q: When does the Oppo Watch S2 launch?
Oppo will officially unveil the Watch S2 in China on September 22, 2026.

Q: How thick is the Oppo Watch S2?
Just 8.9mm, continuing Oppo’s focus on slim wearable design.

Q: What is FatMax mode?
A fitness feature that calculates a personalized heart rate zone and tracks fat burn in real time during workouts.

Q: How long does the battery last?
Up to 10 days maximum, around 7 days with normal use, and about 4 days with always-on display enabled.

Q: Will the Oppo Watch S2 launch in India?
Oppo hasn’t confirmed India pricing or availability yet; a global rollout typically follows the China launch.