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HTC Desire 820 and HTC One A9 devices have been released in the same month, but in two different years: 2014 and 2015. Both devices have good specifications that are worth mentioning and this comparison will help take the best decision in case you’re interesting in purchasing one of these phones.

Designs

The HTC Desire 820 measures 157.7×78.7×7.7mm and weights 155 grams. It has a dual tone design and a plastic body that gives it the feeling that it’s a cheap phone. On the other hand, the HTC One A9 is slimmer and lighter, as it measures 145.8×70.8×7.3mm and weights 143 grams. Its body is made of metal, being similar to the One M9, so it has two lines on the back and the rear camera is placed above the first line, in the middle. Another advantage of the A9 is the addition of a fingerprint scanner on the front panel, below the screen, which supports Android Pay, the new mobile payment system introduced in Android Marshmallow.



Displays

The HTC Desire 820 has an LCD display of 5.5-inch that supports a resolution of 1280×720 pixels at 267 ppi and it’s protected by Corning Gorilla Glass 3. The HTC One A9 comes with an AMOLED display of 5-inch that supports a higher resolution of 1920×1080 pixels at 441 ppi and it’s protected by Corning Gorilla Glass 3.

Processors, Graphics Cards & RAM

The HTC Desire 820 has been released with a Qualcomm MSM8939 Snapdragon 615 chipset, an octa-core processor formed from a quad-core Cortex A53 processor clocked at 1.5GHz and a quad-core Cortex A53 processor clocked at 1.0GHz, an Adreno 405 graphics card and 2GB of RAM. The HTC One A9 features a Qualcomm MSM8952 Snapdragon 617 chipset, an octa-core processor formed from a quad-core Cortex A53 processor clocked at 1.5GHz and quad-core Cortex A53 processor clocked at 1.2GHz, an Adreno 405 graphics card and in two RAM variants of 2GB and 3GB.

Storages

The HTC Desire 820 device comes with an internal memory of 16GB which you can expand up to 128GB using a microSD card. On the other hand, the HTC One A9 has been released in two internal storage variants of 16GB (the variant with 2GB of RAM) and 32GB (the variant with 3GB of RAM), but you can expand their capacity up to 200GB.

Cameras

Both devices sport a primary camera of 13MP (found on the rear side of the handsets) with features such as LED flash, autofocus, geo-tagging, touch focus and HDR. However, when it comes to the secondary camera, the HTC Desire 820 has a better one of 8MP, while the HTC One A9 inherited the 4MP Ultrapixel camera from the back of the One M8.

Batteries

Both devices come with non-removable batteries, but the one found on the HTC Desire 820 has a capacity of 2600 mAh and it is more powerful than the 2150 mAh battery that powers the HTC One A9.

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