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Our Customer Stories

Many leading Smartphone manufacturers are at the heart of our innovation. 

Please find out how our testing and support have enabled them to improve the customer experience of their smartphone users. 
What Our Customers Are Saying
Wiko Testimonial
ViserMark collaborates with OPPO



“As mobile devices become more and more powerful and meet new habits (online streaming, gaming, 5G), battery life is more than ever a challenge for manufacturers.


At OPPO, we continuously optimise our devices to increase battery life and provide customers with innovative features like the world’s fastest flash charge technology SuperVOOC 2.0.


Thanks to the new ViserMark score, users can get a quick, factual overview of a device’s performance on battery life and check if it suits them.”


David Chauvaud

- Product Marketing Chief at OPPO France

ViserMark labels where shown by OPPO in their web store

This image shows the OPPO Store in France, displaying the ViserMark Battery Life label for the OPPO A57.  It shows that the OPPO A57 is capable of 2 Days of Use, helping to make a better-informed decision when buying a smartphone.  View the online site

ViserMark collaborates with Wiko
ViserMark labels where used by Wiko

Wiko Power U20

ViserMark Battery Life label showing days for Wiko test


"We, as manufacturers of smartphones, aim to deliver the best experience for our users. Developing newer Smartphones requires a large amount of time and expenditure to be competitive and visible in a very crowded and fast-moving market. The Battery Life of a Smartphone is absolutely critical to users and their daily productivity. Our R&D has put a lot of effort into providing our end users with superior battery life performance.

SmartViser was chosen for this project as they offered superior knowledge on Smartphone Battery Life and Performance, which is critical to us when considering future Smartphones. The SmartViser testing was impressive and performed in very strict testing conditions.  Our Smartphone passed very rigorous testing protocols, and we are extremely pleased with our ViserMark Label as a result of the overall tests.

Thanks to ViserMark, we could clearly communicate our leadership in the best battery life performance. The ViserMark score directly impacts our sales and end-user experience.”


Wiko - Tinno R&D

Oppo Testimonial
ViserMark labels where used by Xiaomi
ViserMark Battery Life label showing days for xiaomi test


"Our primary mission at Xiaomi is to make quality technology accessible to everyone. We are committed to continuous innovation and unwavering focus on quality and efficiency.


We understand that Battery Life performance is crucial for the end users, and we always strive to offer them super Quality of Experience and Service.


Using ViserMark Label gives us great confidence by validating the quality and performance of our products, and it's a simple way of translating technical specifications into user benefits, making it a great marketing asset for us."


Xiaomi Testimonial
ViserMark collaborates with Xiaomi


Smartphone Design


We want to share our latest smartphone test results with ViserMark Labels and insightful reviews with you.

Smartphone showing a Travel Blog


Interesting articles and reports on battery performance-related topics and the latest industry developments.

People Recording using mircophones


Providing you with a round-up of all the smartphone events as well as the latest

ViserMark news.

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