Q1
Best network for SM20?
EE leads with 89/100 — driven by 79% 5G and 99% 4G in this suburban part of Sutton.
SM20 DISTRICT · SUTTON
Best mobile network in SM20 Sutton postcode district
EE scores 89/100 — the top-ranked UK network for SM20 in Sutton. 79% 5G · 99% 4G coverage. Data: Ofcom Connected Nations 2024.
RESULT · SM20 · SUTTON
Coverage for SM20 district
★ BEST OPERATOR
EE
89/100
EE delivers the strongest coverage for the SM20 district in Sutton. Scored across 5G, 4G and 3G using the latest UK operator footprint data.
Full ranking — SM20
#1
EE
#2
Three
#3
O2
#4
Vodafone
Coverage analysis — SM20
Comparing Ofcom-verified operator coverage footprints, EE scores highest across Sutton. In this suburban area, EE achieves an overall coverage score of 89/100 — driven by strong 5G coverage (79%) and rock-solid 4G at 99%. 5G and 4G scores are closely matched, reflecting a mature, stable network.
EE noticeably leads Three by 9 points overall. While Three reaches 59% on 5G and 100% on 4G in Sutton, it falls short of EE's combined performance across all bands. O2 and Vodafone round out the field at 79 and 79 respectively.
Why EE for SM20?
EE has made solid 5G inroads across Sutton, reaching 79% of premises in SM20. While not blanket coverage, most streets and town centres are covered — and 4G fallback at 99% keeps reliability high throughout.
The runner-up in SM20 is Three at 80/100 (59% 5G / 100% 4G). The margin is noticeable but not enormous. EE edges ahead on 5G depth; if your plan is with Three, 4G performance should still be solid.
Best phone deals from EE
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Explore the Sutton area
View full coverage analysis for the Sutton (SM) area, or enter any UK postcode in the scanner above for a personalised result.
Coverage FAQ — SM20
Q2
Is 5G available in SM20?
EE provides strong 5G coverage at 79%. Three follows at 59%.
Q3
Which network has the best 4G?
EE leads 4G too at 99%. Reliable 4G is critical in suburban areas.
Q4
Is O2 worth considering?
O2 scores 79/100 in SM20 (59% 5G, 100% 4G). It may suit certain tariff or price preferences despite trailing the top two.