Q1
Best network for ZE1?
Three leads with 100/100 — driven by 100% 5G and 100% 4G in this remote part of Shetland.
ZE1 DISTRICT · SHETLAND ISLANDS
Best mobile network in Lerwick ZE1 · Shetland Islands
Three scores 100/100 — the best measured network for ZE1 in Shetland, 12 points clear of the weakest. 100% 5G-grade · 100% 4G. Ofcom Mobile Coverage data (May 2025), measured across 151 addresses in 6 sampled postcodes.
The ZE1 district covers Lerwick, Bressay and Shetland Central, in Shetland Islands. Signal varies street by street — scan your exact postcode below.
RESULT · ZE1 · SHETLAND
Coverage for ZE1 district
★ BEST MEASURED
Three
100/100
Three has the strongest measured coverage for the ZE1 district in Shetland, 12 points clear of the weakest network in Ofcom's data.
Full ranking — ZE1
#1
Three
#2
O2
#3
Vodafone
#4
EE
Coverage analysis — ZE1
Based on Ofcom's measurements, Three comes out on top for Shetland. In this remote area, Three 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.
Three noticeably leads O2 by 1 points overall. While O2 reaches 100% on 5G and 100% on 4G in Shetland, it falls short of Three's combined performance across all bands. Vodafone and EE round out the field at 95 and 88 respectively.
In remote areas like Shetland, 4G reliability often matters more than 5G availability. Three 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 Three for ZE1?
Three's 5G rollout in Shetland is among the strongest nationally, covering 100% of premises in the ZE1 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 ZE1 is O2 at 99/100 (100% 5G / 100% 4G). It is a close contest — both operators deliver strong coverage in ZE1, and your choice may come down to tariff, handset preference, or existing contract.
Switching to Three in Lerwick
Three has the strongest measured signal here — 100/100, with 100% 5G-grade and 100% 4G coverage across Lerwick, Bressay and Shetland Central, 12 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 — ZE1
Q2
Is 5G available in ZE1?
Three provides excellent 5G coverage at 100%. O2 follows at 100%.
Q3
Which network has the best 4G?
Three leads 4G too at 100%. Reliable 4G is critical in remote areas where 5G hasn't yet rolled out fully.
Q4
Is Vodafone worth considering?
Vodafone scores 95/100 in ZE1 (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 ZE2, ZE3 — or browse all Shetland postcode districts.