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Bringing You Smartphone
Battery Performance 

Our mission is to make it easier to understand Battery Performance when choosing or buying a smartphone
- for a more straightforward, more informed decision. 

Our ViserMark Labels show official Battery Life Ratings and Performance Scores, making battery life a key consideration when buying a smartphone.

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ViserMark tests hundreds of smartphones every year to find the best performers. Our strict, repeatable, and rigorous testing protocol leaves no room for error. All smartphones are tested the same way, so you have all the right information at the right time when researching and comparing.

Finding information about smartphones can often be difficult. ViserMark can now provide visual labels displaying relevant and useful information about smartphone performance.

Introducing The Battery Performance Label

ViserMark Label showing Smartphone Batttery Performance Score of 49/100

From the ViserMark range, the Battery Performance Label scores between 0 and 100.

Using various testing criteria, measured using real-life scenarios and live networks, results are collated with calculations from Battery Life, Power Efficiency and Charging results that amount to the total score.

Comprehensive Reviews Using
ViserMark Labels

ViserMark can provide a full range of smartphone battery performance test results as part of our testing protocol. Collating these into beneficial effects can help you see the ViserMark Battery Performance Score highlighting what certain smartphone features are impacted. This information is represented on a series of ViserMark Labels that provide helpful ratings on smartphone considerations, like battery life, charging times, power efficiency and annual energy consumption.  


The ViserMark Labels are used within our smartphone reviews, keeping you up-to-date with the latest results. Also, additional information can be found in our comprehensive Smartphone Ranking Tables showing the latest ViserMark Battery Performance Scores and comparisons in tiers, including Flagship/Pro, High, Mid and Entry based on price.

Our comprehensive smartphone test results show that the best-performance smartphones have been identified for you. The ViserMark Best Smartphone Performance for Battery Performance Score, Battery Life, Charging Times, Battery Power Efficiency and Annual Energy Consumption is listed in the Top Ten tables, with reviews to read or a short video to watch.  

Our team of experts will continue to bring you smartphone results, updated rankings, and the latest reviews from our rigorous testing protocols verified by SmartViser.

Helping Smartphone Users Understand Battery Performance

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Helping you to make the right choice

We are a good guide to smartphone users as experts with years of experience in battery performance testing.


As you start the evaluation process, we want to be considered the right source of accurate information on smartphone battery performance.


All the latest battery performance reviews for various smartphones are available to read or watch. 


Smartphone Design


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

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

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

ViserMark news.

We are open to your suggestions!

Do you have a request for us to test a new smartphone for battery life performance?

Want to see which smartphone has the best battery life or how it has improved?

We are constantly seeking feedback from smartphone users, and all feedback is appreciated and forwarded to our device testing experts. Please don’t hesitate to get in touch using the contact details below. We are looking forward to hearing from you!

Please email or call our Head Office in Rennes on +33 299 314 208 

Want To Contact Us?

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