From Galaxy S2 to S21 – this much has happened in ten years

Smartphone development has been at a furious pace over the past ten years. Phones have in several ways been at the forefront of computer development and were the first to come up with cutting-edge technology.

Now that we have reached a certain natural stagnation, it may be time to look back and see how much has actually happened in a decade. Part of the development can be difficult to express in black and white, as specifications only tell part of the progress.

For the sake of simplicity in this basic review, we compare the classic Galaxy S2, Samsung’s flagship in the summer of 2011, with today’s top model in the S-series: Galaxy S21 Ultra. Galaxy S2 was powered by Samsung’s first Exynos. It was a powerful chip at the time that replaced Hummingbird.

Exynos had a dual-core 1.2GHz processor with 45nm manufacturing technology. Ten years later, Exynos offers 5nm manufacturing technology, eight cores, and clock frequencies up to 2.9GHz. Working memory has been increased sixteen times, from 1GB to 1,16GB.

At the same time, RAM has become much faster and more energy efficient. We have gone from LPDDR2 to LPDDR5 and transfer speeds of about 2.6GB / s to just over 50GB / s. The storage has grown from 16GB (a lot for its time) to 512GB – 32 times as much.

The screen is, of course, another big step forward. The Galaxy S2 had a 4.3-inch Super AMOLED Plus screen with a 16: 9 aspect ratio, 480 x 800 pixels and 217ppi. Galaxy S21 Ultra offers 4.2 million more pixels than its ten-year-old predecessor. The pixel density has increased from 217ppi to 516ppi. The panel is gigantic with its 6.8 inches, although the aspect ratio means that a direct comparison with inches can not be made.

Other things that have happened in ten years: We have gone from Bluetooth 3.0 to 5.2, from micro-USB to USB-C, from HSDPA to 5G, and from only GPS to GPS and GLONASS, Galileo and BeiDou. Other innovations are ultrasound-based biometric authentication, NFC, UWB and IP68 rating. Galaxy S2 had no biometric authentication at all.

Regarding photography and video recording, it is like night and day between the phones. The S2 had a single rear 8MP camera with low light input and small sensor size. Ultra instead has a 108MP camera, a 12MP super wide-angle camera and telephoto lens with up to 10x optical zoom.

Battery capacity may play a lesser role in this context than battery life, but the battery has in any case grown from 1650mAh to 5000mAh. But not everything has gotten better. Galaxy S2 had a removable battery, memory card slot, headphone output and a much smoother format – for those who think this is an advantage.

Source: Swedroid by

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