• Daniel Chaparro

Samsung Galaxy A51 ViserMark Battery Life

Updated: Mar 31

Battery Life Testing Report – March 2021


The Galaxy A51 comes as the evolution of the A50 model, it is a Samsung update for a mid-range price Smartphone, that already succeed in 2019 with the A50.

Most changes in the A51 are related to updated hardware and a modern design, the A51 model has a 4/6 GB RAM memory and 64/128 ROM memory and the possibility to extend it up to 500 GB.

Release Date January 2021

Product Features and Specification

  • Design: Plastic refined and stylish design.

  • Camera: 32 MP Front camera, f/2.2 26mm (wide),1/2.8”, 0,8µm

Quad 48 MP rear camera, f/2.0, 26 mm(wide) ½.0", 0.8µm, PDAF;

12 MP rear camera, f/2.2, 123" (Ultrawide);

5 MP rear camera, f/2.4 (macro);

5 MP rear camera, f/2.2 depth.

Video capture: 4K@30fps, 1080p@30fps

  • Battery: 4000 mAh (Fast charging 15W)

  • Display: 6.5"

  • Size: 158.5 x 73.6 x 7.9 mm

  • Weight: 172g

  • Memory: 64/128GB.

  • RAM: 4/6GB

  • Chipset: Exynos 9611 (10nm).

  • Android: Android 10, upgradable to Android 11, One UI 3.0

  • Software Version: QP1A.190711.020.A515FXXU4CUA1

Success Metrics


The Samsung Galaxy A51 is classed as a Mid-tier device (between 200 to 500 EURO) in the ViserMark list. It is equipped with the Exynos 9611 Chipset and powered by a 4000mAh battery with a 15W Fast Charge option.

Testing Results

Through the ViserMark test protocol, the FE battery least about 37 hours with a display refreshing rate of 60 Hz obtaining a 171 ViserMark score. Compared with the average ViserMark score of Mid-tier devices “208.1” the A51 offers a lower autonomy.

Test Graphics


The battery autonomy of the Samsung Galaxy A51 is 171, which is around 1.5 days based on the ViserMark testing protocol. The A51 performance is far from expectations. Other devices in the same price range with a similar battery capacity performed better. As an example, The Xiaomi Mi9T Pro (214), Reno 4 5G (208) or the Sony L4 (205 with a 3580-battery capacity).

ViserMark tests are performed with the strictest protocol in a controlled environment to ensure repetition and consistency powered and automated by SmartViser’s test automation solution viSer. The automation test includes a variety of user actions from calls to social media and periods of standby times.

VCX (Valued Camera eXperience)

The VCX Forum has been working with its members on the system and infrastructure as a non-profit organisation. We strive to improve our technology to develop and exchange accurate and objective quality and performance indicators that are our ultimate goal. We will also serve as a compass for the smart-phone camera industry. We appreciate your interest in VCX-Forum.

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The Samsung Group is a South Korean multinational conglomerate headquartered in Samsung Town, Seoul. It comprises numerous affiliated businesses, most of them united under the Samsung brand. Samsung Electronics has assembly plants and sales networks in 74 countries and employs around 290,000 people. Samsung is a major manufacturer of electronic components such as lithium-ion batteries, semiconductors, image sensors, camera modules and displays for clients such as Apple, Sony, HTC and Nokia.

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If you're looking for the best smartphone on the market, battery performance is one of the key decisive aspects then ViserMark is for you.

Not only is ViserMark the first label that measures battery performance, translating mAh into direct battery life scores, but it is also a highly valuable marketing asset to device manufacturers and end-users. ViserMark is a benchmark to help make better-informed choices when buying a Smartphone. 

If you are a smartphone manufacturer and looking to improve your devices battery life and performance get in touch now to discuss how we can help.

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