OnePlus is expected to unveil its third smartwatch at the upcoming Mobile World Congress 2024 (MWC 2024) event to be held in Spain. While details about this smartwatch have trickled out through minor leaks over time, we’ve now started seeing more details trickle out as the launch approaches. The latest leak comes from an official source that gives us information on the smartwatch’s battery capacity and also answers some questions about OnePlus’ big battery life claims.

First reported by 9to5Google, an FCC listing can reveal how OnePlus claims to deliver better-than-market battery life with its latest smartwatch. The FCC listing suggests that the OnePlus Watch 2 will have a rather large 500mAh battery, which the report says is about 64 percent larger than the one in the latest Pixel Watch 2 and about 20 percent larger than this of Galaxy Watch 6 ( 44 mm) battery.

The Galaxy Watch 5 Pro still has the largest battery at 509mAh. OnePlus, in a recent forum post revealed that its Watch 2 will offer 100 hours of battery life in “smart mode,” which will set some new smartwatch standards or raise the bar if it ends up doing the same successfully. It’s currently unclear what the ‘Smart mode’ does, but it’s clear that the watch will deliver the claimed battery life when used in this mode.

According to the FCC document, the OnePlus Watch 2 will use a pin-based charging system with four flat pins located at the bottom that will connect to a charging adapter.

Unlike the last OnePlus Watch and OnePlus Nord Watch, which used a custom software operating system, the presence of a Qualcomm Snapdragon W5 Gen 1 SoC hints at a WearOS-powered smartwatch, which will come as a relief to the brand’s followers. A recent leak also hinted at the same. That being said, it is expected to be much more capable than its successor.

OnePlus recently officially revealed the design of its upcoming smartwatch. It will be available in two colors — Black Steel and Radiant Steel. Images of the wearable also show a large circular display with two buttons on the right side of the case. OnePlus claims the Watch 2’s body is made of stainless steel and has a sapphire crystal-protected display, which should make it as durable as a regular watch.

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