au Achieves Top Rankings in Opensignal’s Domestic 5G SA User Experience Analysis
Tokyo, Japan – July 31, 2024 – KDDI Corporation is pleased to announce that its mobile brand, au, has secured the number one position in all six key performance categories within Opensignal’s latest report analyzing the domestic 5G Standalone (SA) network user experience. This significant achievement underscores au’s unwavering commitment to delivering a superior and seamless 5G experience to its customers across Japan.
The Opensignal report, titled “Opensignal社の国内5G SAにおける通信体感分析,” (Domestic 5G SA Communication Experience Analysis by Opensignal) was published on July 31, 2025, at 01:00 JST. It highlights au’s leading performance in critical areas that directly impact user satisfaction and perceived network quality.
The six categories where au excelled are:
- 5G Availability: This metric measures the proportion of time users spend connected to a 5G network. au’s top ranking signifies that its 5G SA network is accessible to users for a greater percentage of their time, ensuring a consistent high-speed experience.
- 5G Reach: This category assesses the geographic extent of the 5G network. au’s leading position indicates a wider coverage area for its 5G SA services, making advanced 5G capabilities available to more users across various locations.
- 5G Upload Speed Experience: This measures the typical upload speeds experienced by users on the 5G network. A higher score signifies faster and more efficient uploading of data, crucial for activities like sharing large files, video conferencing, and social media engagement.
- 5G Download Speed Experience: This assesses the typical download speeds experienced by users. au’s superior performance in this area translates to faster content downloads, smoother streaming, and an overall more responsive internet experience.
- 5G Video Experience: This metric evaluates the quality of video streaming on the 5G network, considering factors like playback success, buffering, and picture quality. au’s top ranking demonstrates its ability to deliver an exceptional video viewing experience without interruption or degradation.
- 5G Games Experience: This category measures the quality of mobile gaming on the 5G network, focusing on latency and responsiveness. au’s achievement in this area highlights its capacity to provide a lag-free and immersive gaming environment for its users.
Opensignal’s rigorous methodology involves collecting vast amounts of real-world data directly from users’ devices, providing an independent and objective evaluation of network performance. The 5G SA network is a crucial evolution of 5G technology, enabling enhanced capabilities such as ultra-low latency and increased network capacity, paving the way for innovative applications and services.
“We are immensely proud of au’s performance in Opensignal’s latest domestic 5G SA analysis,” said a representative from KDDI. “This recognition across all six key categories is a testament to our dedicated efforts in building and optimizing a robust 5G SA network. Our commitment remains focused on providing our customers with the most advanced and reliable mobile communication experience, empowering them with the full potential of 5G technology.”
KDDI continues to invest in its 5G infrastructure and the expansion of its 5G SA network, aiming to further enhance user experience and drive the adoption of new, transformative 5G services. This latest achievement reinforces au’s position as a leader in the Japanese telecommunications market.
Opensignal社の国内5G SAにおける通信体感分析において、全6部門でauが1位を獲得
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KDDI published ‘Opensignal社の国内5G SAにおける通信体感分析において、全6部門でauが1位を獲得’ at 2025-07-31 01:00. Please write a detailed article about this news in a polite tone with relevant information. Please reply in English with the article only.