Q1
Best network for PO4?
EE leads with 91/100 — driven by 83% 5G and 100% 4G in this densely populated urban part of Portsmouth.
PO4 DISTRICT · PORTSMOUTH
Best mobile network in PO4 Portsmouth postcode district
Comparing EE, Vodafone, O2 and Three across 5G · 4G · 3G for the PO4 postcode district in Portsmouth.
RESULT · PO4 · PORTSMOUTH
Coverage for PO4 district
★ BEST OPERATOR
EE
91/100
EE delivers the strongest coverage for the PO4 district in Portsmouth. Scored across 5G, 4G and 3G using the latest UK operator footprint data.
Full ranking — PO4
#1
EE
#2
Three
#3
O2
#4
Vodafone
Coverage analysis — PO4
Cross-referencing EE, Vodafone, O2 and Three using Ofcom 2024 data, EE outperforms rivals in Portsmouth. In this densely populated urban area, EE achieves an overall coverage score of 91/100 — driven by strong 5G coverage (83%) and rock-solid 4G at 100%. 5G and 4G scores are closely matched, reflecting a mature, stable network.
EE consistently leads Three by 4 points overall. While Three reaches 75% on 5G and 100% on 4G in Portsmouth, it falls short of EE's combined performance across all bands. O2 and Vodafone round out the field at 86 and 83 respectively.
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Explore the Portsmouth area
View full coverage analysis for the Portsmouth (PO) area, or enter any UK postcode in the scanner above for a personalised result.
Coverage FAQ — PO4
Q2
Is 5G available in PO4?
EE provides strong 5G coverage at 83%. Three follows at 75%.
Q3
Which network has the best 4G?
EE leads 4G too at 100%. Reliable 4G is critical in densely populated urban areas.
Q4
Is O2 worth considering?
O2 scores 86/100 in PO4 (73% 5G, 99% 4G). It may suit certain tariff or price preferences despite trailing the top two.