SignalCheck.uk

Mobile Signal in SE21

London, Greater London — Urban area

Best Network

EE

95
Best Network

EE

excellent

Outdoor
98%
Indoor
87%
Voice
99%
5G Available Details →

Three

excellent

Outdoor
97%
Indoor
87%
Voice
95%
5G Available Details →

O2

excellent

Outdoor
97%
Indoor
86%
Voice
98%
5G Available Details →

Vodafone

excellent

Outdoor
98%
Indoor
87%
Voice
94%
5G Available Details →

Side-by-Side Comparison

Metric EE Three O2 Vodafone
4G Outdoor 98% 97% 97% 98%
4G Indoor 87% 87% 86% 87%
Voice 99% 95% 98% 94%
5G 5G Available 5G Available 5G Available 5G Available
Overall excellent excellent excellent excellent
Score
95
94
95
94

Coverage Summary

Mobile signal in SE21 (London) is rated excellent overall. EE leads with 98% outdoor 4G coverage and 87% indoor coverage. Vodafone offers the weakest coverage at 98% outdoor.

5G: Full 5G is available from EE, Three, O2, Vodafone.

Nearby Areas

SE20

London

Best: Vodafone

SE22

London

Best: O2

SE23

London

Best: EE

Frequently Asked Questions

What is the best mobile network in SE21?
EE has the best overall coverage in SE21 (London) with 98% outdoor 4G coverage and a score of 95/100.
Is there 5G in SE21?
Yes, 5G is available in SE21 from EE, Three, O2, Vodafone.
How is indoor signal in SE21?
Indoor 4G coverage in SE21 ranges from 86% to 87%. EE leads with 87% indoor coverage.
Which network has the worst signal in SE21?
Vodafone has the weakest coverage in SE21 with a score of 94/100.

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All postcodes in London · Greater London coverage · EE in SE21 · Three in SE21 · O2 in SE21 · Vodafone in SE21 ·