Samsung is planning to introduce a new battery technology for its wearable devices, including the Galaxy Watch and Galaxy Ring. According to a report from 9to5Google, the company will adopt all-solid-state batteries to enhance energy density in its upcoming Galaxy Ring 2 or Galaxy Ring 3.
How Solid-State Batteries Differ from Lithium-Ion
Currently, wearables use lithium-ion batteries, the same type found in smartphones and many other gadgets. These traditional batteries rely on liquid electrolytes, whereas solid-state batteries use a solid electrolyte instead.
This shift brings several advantages:
- Higher Energy Density: Solid-state batteries provide more capacity without increasing size, a benefit also seen in silicon-carbon batteries.
- Flexible Design: They can be designed in various shapes, allowing brands to optimize space in wearable devices.
- Improved Safety and Performance: Unlike lithium-ion batteries, which contain flammable liquid electrolytes, solid-state batteries significantly reduce the risk of fire, leakage, or thermal runaway.
Samsung’s Progress and Expected Launch
In January 2025, Samsung Electro-Mechanics CEO Chang Dukhyun confirmed that the company’s all-solid-state batteries, also known as ASSBs, are ready and have achieved the highest energy density and capacity-to-size ratio in the industry.
The first Samsung device to feature this new battery technology is expected to be the upcoming Galaxy Ring. According to the report, Samsung’s first solid-state battery-powered product could launch in the fourth quarter of this year.
It could be the Galaxy Ring 2 or Galaxy Ring 3, depending on the release timeline of the Galaxy Ring 2, which may arrive in July alongside the Galaxy Z Fold 7 and Flip 7.
Silicon-Carbon vs. Solid-State Batteries
Recent flagship phones like the OnePlus 13 and Xiaomi 15 use silicon-carbon batteries. These improve traditional lithium-ion batteries by enhancing the anode with silicon, boosting energy density while still using liquid electrolytes. We expect this technology to be used in the upcoming Galaxy S26 as well.
Solid-state batteries, on the other hand, represent a more fundamental shift, replacing the liquid electrolyte with a solid one. This change enables the use of lithium metal anodes, increasing its energy density and safety, and potentially also allowing for faster charging.
However, note that silicon-carbon batteries are still denser than solid-state batteries.
