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Opensignal reports and analyses are the definitive guide to understanding the true experience consumers receive on mobile and broadband networks.

Opensignalのレポートと分析はワイヤレス・ネットワーク・ユーザーの真の体感を理解する為の決定的ガイドです
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Japan, April 2026, Mobile Network Experience

By Robert Wyrzykowski, April 2026

In our latest Japan Mobile Network Experience report, au leads the national award count with ten sole and one joint win. It achieves a clean sweep for experiential awards in Japan, while also winning Consistent Quality and Reliability Experience outright.

The long goodbye: why is 3G still present in Asia Pacific?

By Robert Wyrzykowski, April 2026

It’s been 25 years since the world’s first commercial 3G launch. Today, 4G is universal, 5G rapidly expands, and 6G already looms on the horizon. And yet … 3G is still very much alive. So why hasn’t it disappeared, even in some developed markets in APAC?

One region, two paths: the opposing forces in data consumption across Asia Pacific

By Robert Wyrzykowski, February 2026

Using our data across 12 Asia–Pacific markets, this analysis shows how opposing forces are reshaping how smartphone users consume data, and why the balance between Wi-Fi and mobile is increasingly market-specific rather than universal.

Japan, October 2025, Mobile Network Experience

By Robert Wyrzykowski, October 2025

au leads the national award count with nine outright and two shared wins. NTT Docomo retains all of its awards from the previous report, while. SoftBank increases its tally from one outright win in the previous report to two sole and one shared victories.

5G mmWave: The UK auction is over — but where’s the action?

By Robert Wyrzykowski, October 2025

In the latest spectrum auction, the U.K.’s three mobile operators — EE, O2, and Vodafone/Three — each spent £13 million for 5.4 GHz of mmWave spectrum. But, what is the actual impact of mmWave on the mobile network connectivity?

Redefining performance in the cloud-native era: lessons from Rakuten Mobile

By Sylwia Kechiche, August 2025

Find out how Rakuten Mobile uses AI, real-time analytics, and competitive benchmarking to drive continuous network improvement — and what’s next for KPIs in the age of Open RAN and 5G

Does 5G Standalone live up to the hype in Japan?

By Robert Wyrzykowski, July 2025

Following our recent analysis of the 5G SA market in Singapore, we now turn our attention to Japan — one of the global frontrunners in 5G SA commercial rollouts. We examine the experience of our users on 5G SA networks in Japan, compared to 5G NSA