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Xiaomi Redmi 9 ViserMark Battery Life

Updated: Feb 8, 2021


Battery Life Testing Report



With its 5020 mAh battery, you can go up to 2.5 full days on a single charge. The 2340x1080 full HD+ resolution ensures an immersive visual experience.

Product Features and Specifications

  • Camera: Quadruple, 13MP main camera

  • Chipset: Media Tek Helio G80

  • Battery: 2.5 days of use with 5020 mAh battery

  • Display: 6.53” FHD+

  • Size: 163.3 x 77 x 9.1 mm

  • Weight: 198g

  • Memory: 3 GB RAM – 32 GB Storage

Success Metrics



Xiaomi Redmi 9 with a Media Tek processor and a 5020 mAh battery capacity should have a very high autonomy. We already tested Xiaomi Redmi Note 9 pro with a Qualcomm processor and the result was really good. Redmi 9 can or not propose the same result than Redmi Note 9 pro in terms of autonomy, that is the question.

Testing Results

Both Redmi note 9 pro and Redmi 9 showed very similar discharge trends and they both reached end of first days with exactly same remaining battery level. So, Xiaomi with 2 different processors propose the same user experience for autonomy to the end-user.

Redmi 9 power has achieved one of the best battery life score of 2020 products that SmartViser has been testing.

Test Graphics

First graphic below shows that 2 runs have the same results so Xiaomi Redmi 9 is very stable in terms of behaviour.



Xiaomi Redmi 9 achieves a really good performance very close to 3 days and can fight on autonomy with Oppo A5 & A9 as they have the same results.

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.


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Xiaomi was founded in 2010 by serial entrepreneur Lei Jun, who believes that high-quality

technology doesn't need to cost a fortune. Is focused on being the most user-centric mobile internet company. With more than 61 million handsets sold in 2014, and products launched in Taiwan, Hong Kong, Singapore, Malaysia, Philippines, India, Indonesia and Brazil, Xiaomi is expanding its footprint across the world to become a global brand. Xiaomi is headquartered in Beijing, China and has offices in Asia-Pacific, India, and Brazil.

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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, it is 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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