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
EE scores 91/100 — the top-ranked UK network for PO4 in Portsmouth. 83% 5G · 100% 4G coverage. Data: Ofcom Connected Nations 2024.
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.
Why EE for PO4?
EE's 5G rollout in Portsmouth is among the strongest nationally, covering 83% of premises in the PO4 district. For anyone streaming video, gaming on mobile, or relying on a mobile hotspot at home, this level of 5G penetration makes a real difference to day-to-day speed.
The runner-up in PO4 is Three at 87/100 (75% 5G / 100% 4G). It is a close contest — both operators deliver strong coverage in PO4, and your choice may come down to tariff, handset preference, or existing contract.
Best phone deals from EE
To make the most of your winning network, here are the top EE contracts available now.
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.