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  • Debbie Bouffler

OPPO Reno4 Pro 5G - Battery Performance Score

Updated: Aug 30, 2021


Battery Capacity mAh: 4000


Smartphone Battery Performance: Ranking #37

In the lower half for Battery Performance within the


Battery Life Testing Report – November 2020





Release Date November 2020

Product Features and Specification

· Design: 7.6mm Ultra Slim Body

· Camera: Ultra Clear Triple LDAF Camera

· Chipset: Qualcomm Snapdragon™ 765G (7nm process)

· Battery: 1.5 Days of use with 4000 mAh Battery

· Display: 6.5” (diagonal) AMOLED

· Size: 159.6mm x 72.5mm

· Weight: 172g

· Memory: 12GB RAM +256GB ROM


Battery Performance


OPPO Reno Series started in 2019 and the first Reno Smartphone became famous thanks to their unique shark like fin design which integrated the selfie camera. With the OPPO Reno4 Series just having been released, OPPO is back to a more conventional front side design now with a selfie camera placed into a small punch on the screens.


Testing Results

BATTERY LIFE - Days of Use

The OPPO Reno4 Pro 5G settings allowed us to test the smartphone with two different settings, which included a 90 Hz and 60 Hz refresh rate.

The OPPO Reno4 Series includes three different models, two having integrating displays with higher refresh rate. Even the OPPO Reno4 Z 5G, the entry model of OPPO Reno4 Series gets a surprisingly good 120Hz refresh rate LCD display.

Overall, all 3 models are lightweight, even though integrating a 4000 mAh battery to power their 5G processors. Intriguingly, the OPPO Reno4 5G and OPPO Reno4 Pro 5G are equipped with Qualcomm Snapdragon 765 5G which has been already seen on many Smartphones this year, while OPPO Reno4 Z 5G gets the Mediatek Dimensity 800.

After a few days of usage, we soon established that with light weight and excellent displays, all three Smartphones are wonderfully comfortable to use. Here at ViserMark, our aim is to verify if end users will be satisfied with the battery life and performance of Smartphones. We tested and proved the real difference in terms of battery performance across the three Smartphones from the Reno 4 Series.

On taking delivery of Smartphones in our testing lab that integrate screens with variable refresh rates, our ViserMark scores are calculated by averaging results across the different settings.

All three Smartphones within OPPO Reno4 Series achieved very similar battery life performance with respectable performance scores scores starting from 44 to 53. The OPPO Reno4 Pro 5G and the OPPO Reno4 Z 5G have been ranked with 1.5 Days of Usage, with individual battery performance scores of 48 and 44.

OPPO Reno4 5G has been ranked with 2 Days of Usage, with a battery performance score of 53. With its 60Hz refresh rate display and the capability to support 2 days of usage, it has an excellent performance for a combination of 6.4’’ screen/183g body. These results define the OPPO Reno4 5G Smartphone the best from the three in the OPPO Reno4 Series.

Both the OPPO Reno4 Z 5G and OPPO Reno4 Pro 5G achieves a very solid performance for their specification, with unique features such as:

- OPPO Reno4 Pro 5G is integrating a mid to high-end processor

- 6.5’’ 90Hz screen in a 172g body

- OPPO Reno4 Z 5G is integrating a 6.57’’ 1

- 20Hz screen in a 184g body

We are delighted to say that both OPPO Reno4 Pro 5G and the OPPO Reno4 Z 5G Smartphones deliver high end performance for at least 1.5 Days of Usage.


CHARGING TIME - Hours and Minutes

we obtained an outstanding Charging Time of an impressive 38 minutes, the quickest charging time recorded by ViserMark Test Protocol.


There are a number of power-efficient processors, within today's Smartphones, that are able to cope with the growing number of new applications and can support high-resolution displays without compromising battery life.

Power Efficiency is calculated using Battery Life and Battery Capacity. This is expressed in “Leaves" and reflects a rating between 1 being least and 5 being the most power-efficient.

The OPPO Reno4 Pro 5G achieved an overall Power Efficiency Score of 1.5 and is placed in the lower half of the most Power Efficiency Smartphones within the High Tier.



All three Smartphones from the OPPO Reno4 Series clearly demonstrate their power efficiency through the ViserMark Testing Protocol. By combining light bodies, 4000 mAh batteries and mid to high end processors, particularly in wide screens, often causes a compromise in the Battery Day of Usage performance. OPPO succeeded to overcome this challenge by achieving an incredibly good integration of all components to maintain a high level of quality experience relating to Battery Life.


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) - not available at present.

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 smartphone camera industry. We appreciate your interest in VCX-Forum.


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OPPO is part of, and owned by, BBK Electronics, a major Chinese consumer electronics firm. Launched by CEO Cheng Mingyong in 2004, OPPO became China's largest smartphone manufacturer in a mere 12 years. By 2016, the brand could be found everywhere, with OPPO phones being sold in over 200,000 retail outlets across the nation.


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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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