The Samsung Galaxy A51 is a mid-range Android-based smartphone manufactured, developed and marketed by Samsung Electronics as part of its Galaxy A series. It was announced on December 12, 2019 and released on December 16, 2019.
Like the Galaxy A71, it also had two 5G versions: with UW and without UW. The latter was announced on April 2020, while the former was announced and released on August 2020.
Similar to the Galaxy A71, it features a plastic back and plastic frame for the LTE variant, while the 5G variants feature an aluminum frame and a plastic back. The back pattern varies by variant: the LTE model features a prism crystal pattern, the 5G non-UW model has a two-tone design, and the 5G UW model having a brick-styled pattern.
All variants of the Galaxy A51 have a 6.5 in Super AMOLED Infinity O display with an FHD+ 1080 ÃÂ 2400 pixel resolution, a 20:9 aspect ratio, and a pixel density of ~405 PPI. The front glass is constructed of Corning Gorilla Glass 3.
All variants have a quad camera setup arranged in an "L" shape located in the corner with a rectangular protrusion. The array consists of a 48 MP wide angle camera, a 12 MP ultrawide camera, a 5 MP macro camera, and a 5 MP depth sensor. It also has a single 32 MP front facing camera, which sits in a small punch hole on the front of the screen.
Both the front and rear facing cameras can record video up to 4K@30 fps, as well as 1080p@30/120 fps.
The LTE variant is powered by the Samsung Exynos 9611 octa-core SoC, the 5G non-UW variant is powered by the Samsung Exynos 980 SoC, and the 5G UW variant is powered by the Qualcomm Snapdragon 765G SoC.
RAM options vary from 4 GB to 8 GB for the LTE variant and 6 GB or 8 GB for the 5G variants. Storage options for the LTE variant are available in either 64 or 128 GB, while the 5G variants are only available in 128 GB. Storage can be expanded with a microSD card up to 512 GB.
It comes with a non-removable 4000 mAh (for the LTE variant) or 4500 mAh (for the 5G variants) lithium polymer battery and 15W Fast Charging.
All variants of the Galaxy A51 originally came with Android 10 and One UI 2.0. On 18 August 2020, Samsung announced that all variants of the Galaxy A51 would be supported for three generations of Android software updates, and 4 years of security updates. It also became one of the first Galaxy A series device (alongside Galaxy A71 and Galaxy A90 5G) to have a longer software support.