Cell Coverage in Radlett, England

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Performance by Carrier in Radlett

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

EE logo
Down
2.2Mbps
Up
2.7Mbps
Reliab.
3.5/ 10

30 tests conducted

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O2 logo
Down
0.0Mbps
Up
0.0Mbps
Reliab.
0.0/ 10

Less than 10 tests conducted

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Three logo
Down
210.3Mbps
Up
9.2Mbps
Reliab.
0.0/ 10

Less than 10 tests conducted

View Carrier
Vodafone logo
Down
13.6Mbps
Up
2.3Mbps
Reliab.
0.0/ 10

Less than 10 tests conducted

View Carrier

These results compare 4 mobile carriers measured in Radlett — 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.

Three delivers the fastest median download at 210.3 Mbps, making it the top performer for raw download throughput. EE ranks highest for reliability with a score of 3.5/10, reflecting consistent connection quality across tests.

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Network Performance

Based on crowdsourced speed tests and signal measurements in Radlett, England, 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

3.4Mbps

Upload

2.9Mbps

Latency

32ms

Reliability

3.5/ 10

Top Performers

Best Download: Three

210.3 Mbps

Best Upload: Three

9.2 Mbps

Best Latency: Three

21 ms

Best Reliability: EE

3.5 / 10

Based on 39 speed tests

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

These medians are calculated from 39 tests. Current medians are 3.4 Mbps download, 2.9 Mbps upload, and 32 ms latency.

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Cell Coverage in Radlett: FAQ

What is the best cell phone carrier in Radlett?

Based on crowdsourced speed tests in Radlett, Three 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 Radlett?

We need at least 25 recent speed tests to generate reliable local metrics. If we don't have enough tests yet, the page focuses on maps and nearby locations while we keep collecting data.

What is the reliability score?

The reliability score summarizes how dependable mobile performance is in Radlett. 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 Radlett?

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 Radlett?

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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