Cell Coverage in Caernarfon, Wales

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Not enough data for Caernarfon

Showing performance data for Gwynedd instead. We need at least 25 speed tests in Caernarfon to generate local metrics.

Performance by Carrier in Gwynedd

Compare real-world download speeds, upload performance, and latency for major carriers in Gwynedd — based on millions of crowdsourced speed tests to help you find the fastest, most reliable network.

DownDownload

42.6Mbps

UpUpload

4.1Mbps

Reliab.Reliability

4.9/ 10

Over 100 tests conducted

View Carrier

DownDownload

9.3Mbps

UpUpload

3.5Mbps

Reliab.Reliability

7.1/ 10

34 tests conducted

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DownDownload

No data

UpUpload

No data

Reliab.Reliability

No data

View Carrier

DownDownload

33.0Mbps

UpUpload

28.2Mbps

Reliab.Reliability

4.2/ 10

41 tests conducted

View Carrier

These results compare 4 mobile carriers measured in Gwynedd — Three, O2, Vodafone, EE — using median values calculated from crowdsourced speed tests. Each card shows download speed, upload speed, and reliability to give you a complete picture of real-world network performance.

EE delivers the fastest median download at 42.6 Mbps, making it the top performer for raw download throughput. O2 ranks highest for reliability with a score of 7.1/10, reflecting consistent connection quality across tests.

Network Performance

Based on crowdsourced speed tests and signal measurements in Caernarfon, Wales using data from Gwynedd, get a complete view of mobile performance with area-wide benchmarks and carrier-by-carrier breakdowns. Explore median performance metrics from real-world tests, then compare carriers side-by-side for speed, responsiveness, and availability.

Median Performance

Download

30.0Mbps

Upload

4.7Mbps

Latency

38ms

Reliability

5.2/ 10

Top Performers

Best Download: EE

42.6 Mbps

Best Upload: Vodafone

28.2 Mbps

Best Latency: EE

35 ms

Best Reliability: O2

7.1 / 10

Not enough tests

Network Performance aggregates all measured carriers in Gwynedd to provide a baseline view of typical speeds and latency in the area. Use these medians as a quick indicator of overall network quality.

Local testing in Caernarfon is limited, so these medians are based on data from Gwynedd. Current medians are 30.0 Mbps download, 4.7 Mbps upload, and 38 ms latency.

Cell Coverage in Caernarfon: FAQ

What is the best cell phone carrier in Caernarfon?

Based on crowdsourced speed tests in Gwynedd, EE currently leads in median download speeds. Compare carriers in the performance table above for the latest results.

Why might this page show limited data for Caernarfon?

We need at least 25 recent speed tests to generate reliable local metrics. Until we reach that threshold in Caernarfon, we show performance data for Gwynedd when it is available.

What is the reliability score?

The reliability score summarizes how dependable mobile performance is in Gwynedd. It uses a 0.0 to 10.0 scale (higher is better) and is calculated from real-world speed test percentiles with weighted components: download (50%), latency (30%), and upload (20%). It evaluates the lower-end experience using the bottom 10%, 5%, and 1% percentiles when enough samples are available. If local speed testing is limited, a coverage-based fallback is used from signal quality distribution (great/good/poor).

How can I check coverage at my specific address in Caernarfon?

Use the interactive map to check signal strength at your exact address. Visit the CoverageMap interactive map to explore 4G/5G availability.

How can I contribute coverage data for Caernarfon?

Download the CoverageMap app and run a few speed tests with location enabled. Your results help improve coverage accuracy and unlock local rankings faster.

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