Q1
Best network for SM3?
EE leads with 88/100 — driven by 77% 5G and 99% 4G in this suburban part of Sutton.
SM3 DISTRICT · SUTTON
Best mobile network in SM3 Sutton postcode district
Comparing EE, Vodafone, O2 and Three across 5G · 4G · 3G for the SM3 postcode district in Sutton.
RESULT · SM3 · SUTTON
Coverage for SM3 district
★ BEST OPERATOR
EE
88/100
EE delivers the strongest coverage for the SM3 district in Sutton. Scored across 5G, 4G and 3G using the latest UK operator footprint data.
Full ranking — SM3
#1
EE
#2
Three
#3
O2
#4
Vodafone
Coverage analysis — SM3
Comparing Ofcom-verified operator coverage footprints, EE outperforms rivals in Sutton. In this suburban area, EE achieves an overall coverage score of 88/100 — driven by strong 5G coverage (77%) and rock-solid 4G at 99%. 5G and 4G scores are closely matched, reflecting a mature, stable network.
EE clearly leads Three by 9 points overall. While Three reaches 59% on 5G and 99% on 4G in Sutton, it falls short of EE's combined performance across all bands. O2 and Vodafone round out the field at 78 and 78 respectively.
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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 — SM3
Q2
Is 5G available in SM3?
EE provides strong 5G coverage at 77%. 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 78/100 in SM3 (57% 5G, 99% 4G). It may suit certain tariff or price preferences despite trailing the top two.