Q1
Best network for ZE3?
O2 leads with 100/100 — driven by 100% 5G and 100% 4G in this remote part of Shetland.
ZE3 DISTRICT · SHETLAND ISLANDS
Best mobile network in Shetland South ZE3 · Shetland Islands
O2 scores 100/100 — the best measured network for ZE3 in Shetland, 13 points clear of the weakest. 100% 5G-grade · 100% 4G. Ofcom Mobile Coverage data (May 2025), measured across 113 addresses in 6 sampled postcodes.
The ZE3 district covers Shetland South, in Shetland Islands. Signal varies street by street — scan your exact postcode below.
RESULT · ZE3 · SHETLAND
Coverage for ZE3 district
★ BEST MEASURED
O2
100/100
O2 has the strongest measured coverage for the ZE3 district in Shetland, 13 points clear of the weakest network in Ofcom's data.
Full ranking — ZE3
#1
O2
#2
Vodafone
#3
EE
#4
Three
Coverage analysis — ZE3
Based on Ofcom's measurements, O2 scores highest across Shetland. In this remote area, O2 achieves an overall coverage score of 100/100 — driven by excellent 5G coverage (100%) and rock-solid 4G at 100%. 5G and 4G scores are closely matched, reflecting a mature, stable network.
O2 comfortably leads Vodafone by 0 points overall. While Vodafone reaches 100% on 5G and 100% on 4G in Shetland, it falls short of O2's combined performance across all bands. EE and Three round out the field at 99 and 87 respectively.
In remote areas like Shetland, 4G reliability often matters more than 5G availability. O2 scores 100% on 4G here, making it the most dependable choice for voice calls and data in areas where 5G infrastructure is still limited.
Why O2 for ZE3?
O2's 5G rollout in Shetland is among the strongest nationally, covering 100% of premises in the ZE3 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 ZE3 is Vodafone at 100/100 (100% 5G / 100% 4G). It is a close contest — both operators deliver strong coverage in ZE3, and your choice may come down to tariff, handset preference, or existing contract.
Switching to O2 in Shetland South
O2 has the strongest measured signal here — 100/100, with 100% 5G-grade and 100% 4G coverage across Shetland South, 13 points clear of the weakest. A cheaper plan on a network that does not reach your street costs more than it saves, so start from the coverage and pick the plan second.
Some links on this page are affiliate links. If you switch through one we may be paid a commission. It never changes which network we rank first - that comes from Ofcom coverage data alone.
Explore the Shetland area
View full coverage analysis for the Shetland (ZE) area, or enter any UK postcode in the scanner above for a personalised result.
Coverage FAQ — ZE3
Q2
Is 5G available in ZE3?
O2 provides excellent 5G coverage at 100%. Vodafone follows at 100%.
Q3
Which network has the best 4G?
O2 leads 4G too at 100%. Reliable 4G is critical in remote areas where 5G hasn't yet rolled out fully.
Q4
Is EE worth considering?
EE scores 99/100 in ZE3 (100% 5G, 100% 4G). It may suit certain tariff or price preferences despite trailing the top two.
Checking mobile signal in a nearby postcode? View our network analysis for ZE1, ZE2 — or browse all Shetland postcode districts.