Which smartphone is the best purchase? The Samsung Galaxy S5, Samsung Galaxy Alpha, or the HTC One M8.

In terms of design and display, the Samsung Galaxy Alpha measures 132.4 x 65.5 x 6.7 mm and weighs 115 grams, while the Galaxy S5 weighs 145 grams, and measures 142 x 72.5 x 8.1 mm, and the HTC One M8 measures 146.36 x 70.60 x 9.35 mm and weighs 160 grams. The Galaxy Alpha has a 4.7 inches display and uses a 1280 x 720 resolution. The Super AMOLED screen uses a 312 ppi pixel density as well. The Galaxy S5 has a 5.1 inch Super AMOLED screen that uses a 1920 x 1080 resolution and a 432 ppi pixel density. The HTC One M8 has a 5 inch screen, a resolution of 1920 x 1080, but the pixel density is bigger, 441 ppi, and it uses the LCD3 technology.

For the hardware, the Samsung Galaxy Alpha has a 1.8 GHz Exynos 5430 processor that features 8 cores. The Galaxt S5 on the other hand, has a quad core configuration with a Qualcomm Snapdragon clocked at 2.5 GHz. The HTC One M8 has a 2.3 GHz Qualcomm Snapdragon 801 that also passes as quad core. All three devices come with 2 GB of RAM, as The One M8 and Galaxy S5 features 16 and 32 GB storage variants, while the Alpha settles for just a 32 GB version.

For the battery and camera specs, the Samsung Galaxy Alpha has the smallest battery capacity, with 1860 mAh onboard, while the Galaxy S5 has the biggest capacity, with 2800 mAh. The HTC One M8 has 2600 mAh one.

The HTC One M8 uses the ultrapixel technology and has a 4 ultrapixel camera on the rear, coupled with a 5 MP camera on the front, the devices use the classic MP technology. The Samsung Galaxy Alpha has 12 MP on the rear and 2.1 MP on the front, falling behind the Galaxy S5, and its 16 MP/2.1 MP configuration.

The HTC One M8 cost $650, while the Samsung Galaxy S5 is about $530, and the Galaxy Alpha is about $600.

Which smartphone is the best purchase? Sound off in the comments section below.