Battery life is often a sore spot for smartwatches, because the tiny batteries do not retailer a variety of energy, and you’re pressured to cost them frequently. For instance, the Samsung Galaxy Watch 8 Basic, which is among the many finest Android smartwatches, is simply rated for round 40 hours of battery backup. So, producers are continuously engaged on enhancing expertise to stuff extra energy right into a smaller battery and pace up charging occasions.
Samsung Electro-Mechanics (SEM), a subsidiary of Samsung Group, is one such producer that is actively engaged on solid-state battery expertise particularly for wearables. This tech will allow smartwatches to characteristic bigger batteries, a thinner profile, and improved thermal stability. It is attainable that an SEM solid-state battery may present up within the next-generation Samsung Galaxy smartwatch.
The corporate initially introduced this ultra-compact battery in 2024, revealing that it is an oxide-based unit and that buyer exams had been already underway. Whereas no particular time-frame of when this battery can be out there in a smartwatch was given, SEM claimed on the sidelines of CES 2025 that it was eying 2026 for mass manufacturing. This is how this new battery expertise is totally different from present Samsung Galaxy smartwatch batteries, and why that is a great factor.
Higher than conventional Li-ion smartwatch batteries
The newly developed oxide-based solid-state battery (SSB) for wearables is kind of totally different from Li-ion batteries present in well-liked Android smartwatches, just like the Samsung Galaxy Watch Extremely. Because the identify suggests, the SSB replaces the liquid electrolyte present in typical Li-ion batteries with a strong, ceramic-like materials. Because of this, SSBs haven’t got to fret about leakage, and the bodily growth is minimal throughout charging.
So, they do not want a pouch to maintain all the things contained or a buffer house to account for growth. Moreover, the solid-state models do not require a separator, which is present in Li-ion batteries to maintain the anode and cathode separate, because the strong electrolyte itself serves as a separator. It is dense, steady, and would not soften at excessive temperatures, making SSBs safer than Li-ion batteries as nicely. The dearth of a necessity for a separator and a powerful casing permits Samsung to pack the unit’s chemical compounds extra tightly, giving the battery higher vitality density.
One other spotlight of SSBs is that they are often made in customized, non-linear shapes, which is right for smartwatch house effectivity. The advantages of an oxide-based SSB would permit a Samsung Galaxy smartwatch to presumably embody an even bigger battery for an extended backup or a slimmed-down body for a lighter construct. Nevertheless, for now, we’ll have to attend for an official announcement on whether or not the next-generation Samsung smartwatch will certainly have a solid-state battery.
