Despite having completely different business models, Apple and Samsung are also similar in some ways. It seems like people either love these companies or hate them, at least that's what I'm getting based on their reactions. I'm not trying to generalize, of course, but there are many people who have strong feeling towards these companies, being positive or negative. That being said, Samsung is one of those companies which invest tons and tons of cash into their R&D (Research and Development) department. That department made it possible for Samsung to introduce devices like the first Galaxy Note, introduce their AMOLED panel and improve upon it over the years and even launch the quite recent Galaxy Note Edge device considering that required the company do develop rounded display. Samsung had all kinds of crazy ideas over the years, but they also produced lots of useful devices, components... and by doing that actually brought something truly innovative to the table. Samsung's SDI branch is pushing battery technology forward and it seems they came to a significant breakthrough.
Samsung seems to have developed a flexible, rollable battery which is designed for wearables. Samsung SDI unveiled the next generation of flexible batteries during the InterBattery 2014 exhibition in Seoul, Korea. These batteries can actually be rolled, Samsung used structural designed and improved materials in order to create these batteries and make them so flexible. This is all great and stuff, but this technology is not ready for mass production just yet. The company needs to improve the reliability of these batteries int he coming years, so we won't be seeing of those in a smartwatch (for example) anytime soon. The reports are claiming it will take at least 3 years for Samsung to make these batteries ready for mass production. Samsung SDI also showed off a pin-type battery which measures only 20 x 3.6mm and boasts a capacity of 10mAh. This is also quite impressive and promising, this basically means they'll be able to stuff a more powerful batteries in a smaller space in the future. Batteries are a huge issue when it comes to today's smartphones and significant improvements are needed, it seems like Samsung is on the right path.