Samsung Galaxy A70 vs Samsung Galaxy S9

The device is dustproof and water-resistant. Water-resistant devices can resist the penetration of water, such as powerful water jets, but not being submerged into water.

The device is protected with extra seals to prevent failures caused by dust, raindrops, and water splashes.

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Damage-resistant glass (such as Corning Gorilla Glass or Asahi Dragontrail Glass) is thin, lightweight, and can withstand high levels of force.

The bigger the screen size is, the better the user experience.

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The device has an LCD display with 3 subpixels per pixel, resulting in sharp and crisp images. Pixels in some displays (like AMOLED) share one subpixel to preserve space. This can result in a less crisp, slightly blurred image.

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The graphics processing unit (GPU) has a higher clock speed.

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It can support faster memory, which will give quicker system performance.

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The system on a chip (SoC) has an integrated LTE cellular chip. LTE is capable of downloading at faster speeds than older, 3G technology.

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More threads result in faster performance and better multitasking.

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Optical image stabilization uses gyroscopic sensors to detect the vibrations of the camera. The lens adjusts the optical path accordingly, ensuring that any type of motion blur is corrected before the sensor captures the image.

The maximum resolution available for videos shot with the main camera. Although it may be possible to choose among other frame rates, those recordings usually have lower resolutions.

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With a wider aperture the sensor can capture more light, helping to avoid blur by enabling a faster shutter speed. It also provides a shallow depth of field, allowing you to blur the background to focus attention on the subject.

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A phase detection autofocus is much faster than a contrast detection autofocus, allowing for sharper images.

Devices with stereo speakers deliver sound from independent channels on both left and right sides, creating a richer sound and a better experience.

With a standard mini jack socket, you can use the device with most headphones.

More microphones result in better sound quality and enable the device to filter out background noise.

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A built-in FM radio tuner allows you to listen to most of the live-broadcasted FM radio stations without using the internet.

Phones with physical keyboards have dedicated media keys, such as: play, stop, next, previous, volume up/down, etc.

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The device's battery life (when in use) as given by the manufacturer. With a longer battery life you have to charge the device less often.

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Fast charging technologies, like Qualcomm’s Quick Charge or MediaTek’s Pump Express, are used to reduce the time it takes to charge a device. For example, with Quick Charge 3.0, the battery can be charged to 50% in just 30 minutes.

The manufacturer offers a branded wireless charging kit. To charge the device, you simply put it down on its charging base.

The battery is removable and can be replaced by the user if broken.

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The device can save battery by using just a black-and-white screen with a few basic icons. This means even with a small amount of battery, you can keep the device running for a long time.

Offline voice recognition enables you to perform voice actions, like dictating texts or using various voice commands, without an internet connection.

Anyone is free to use, copy, study, and change the software in any way, and the source code is openly shared so that people are encouraged to voluntarily improve the design of the software.

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802.11ac wireless works on the 5GHz frequency range. It offers higher transfer rates, improved reliability and improved power consumption. It provides advantages for gaming and HD video streaming.

A two-stage shutter can help you take photos like a pro: just slightly press the button for the lens to focus, and then push it fully to capture the photograph.

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