Q1
Best network for SM12?
EE leads with 87/100 — driven by 74% 5G and 99% 4G in this suburban part of Sutton.
SM12 DISTRICT · SUTTON
Best mobile network in SM12 Sutton postcode district
Comparing EE, Vodafone, O2 and Three across 5G · 4G · 3G for the SM12 postcode district in Sutton.
RESULT · SM12 · SUTTON
Coverage for SM12 district
★ BEST OPERATOR
EE
87/100
EE delivers the strongest coverage for the SM12 district in Sutton. Scored across 5G, 4G and 3G using the latest UK operator footprint data.
Full ranking — SM12
#1
EE
#2
Three
#3
O2
#4
Vodafone
Coverage analysis — SM12
According to Ofcom's December 2024 Connected Nations report, EE delivers the strongest signal in Sutton. In this suburban area, EE achieves an overall coverage score of 87/100 — driven by strong 5G coverage (74%) and rock-solid 4G at 99%. 5G and 4G scores are closely matched, reflecting a mature, stable network.
EE clearly leads Three by 5 points overall. While Three reaches 63% 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 81 and 80 respectively.
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Explore the Sutton area
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Coverage FAQ — SM12
Q2
Is 5G available in SM12?
EE provides strong 5G coverage at 74%. Three follows at 63%.
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 81/100 in SM12 (62% 5G, 99% 4G). It may suit certain tariff or price preferences despite trailing the top two.