The future Samsung Galaxy Watch will have impressive autonomy

The latest version of the Galaxy Watch lasts about a day on a single charge, although that time depends on how you use it. This is less than the Galaxy Watch 6. In other words, although the Galaxy Watch & is a great device, they can definitely be improved in some areas – and maybe Samsung is testing new battery technology for its devices.

What we know about the watch

According to an article in BusinessKorea, Samsung has developed a never-before-seen battery: an ultra-small, all-solid-state device that it calls a “dream battery.” This battery is expected to be first used in the Galaxy Ring and Galaxy Watch, and mass production will begin in the first half of 2026.

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The new solid-state battery will have an energy density of 200 Wh/L, making it one of the highest in the industry. This means that a battery with a capacity of one liter can provide 100 watts of energy for an hour. The higher the energy density of the battery, the greater its capacity. When we already see wearable devices struggling to cope with everyday needs, the idea of ​​a battery with 100 times the capacity of the largest ones on the market looks extremely attractive.

But while large capacity is attractive us, there are other advantages that should not be forgotten. Solid-state batteries charge much faster than traditional batteries and come in a wide variety of shapes, making them ideal for use in wearable devices.

Apple isn't sitting idly by either. At the beginning of this year, the company TDK – supplier of batteries for Apple – announced its own breakthrough in the field of battery technology. Now there is a race to see which company will be the first to bring it to market. Whether it's Apple or Samsung, whoever brings a working version of this battery technology to market will have a huge advantage.

Of course, you and I will benefit the most. We won't have to charge the phone as often, and when we do, it won't last as long.