CM8 DISTRICT · CHELMSFORD

Best mobile network in CM8 Chelmsford postcode district

Comparing EE, Vodafone, O2 and Three across 5G · 4G · 3G for the CM8 postcode district in Chelmsford.

RESULT · CM8 · CHELMSFORD

Coverage for CM8 district

Chelmsford · Mixed urban-rural density area · CM postcode area

★ BEST OPERATOR
EE
84/100

EE delivers the strongest coverage for the CM8 district in Chelmsford. Scored across 5G, 4G and 3G using the latest UK operator footprint data.

5G
70%
4G
99%
3G
98%

Full ranking — CM8

#1
EE
Overall: 84/100
5G
70%
4G
99%
3G
98%
#2
Three
Overall: 77/100
5G
55%
4G
99%
3G
95%
#3
O2
Overall: 75/100
5G
51%
4G
99%
3G
96%
#4
Vodafone
Overall: 71/100
5G
45%
4G
97%
3G
96%

Coverage analysis — CM8

Based on Ofcom Connected Nations 2024 data, EE delivers the strongest signal in Chelmsford. In this mixed urban-rural area, EE achieves an overall coverage score of 84/100 — driven by strong 5G coverage (70%) and rock-solid 4G at 99%. 5G and 4G scores are closely matched, reflecting a mature, stable network.

EE noticeably leads Three by 7 points overall. While Three reaches 55% on 5G and 99% on 4G in Chelmsford, it falls short of EE's combined performance across all bands. O2 and Vodafone round out the field at 75 and 71 respectively.

Best phone deals from EE

Pairing great coverage with great value, here are the top EE contracts available now.

Apple Smart Benefits
iPhone 16 128GB
£35.00/mo + £30 upfront
100GB data 24-month contract
View on EE →
Apple Apple TV+
iPhone 16 Pro 256GB
£52.00/mo + £30 upfront
Unlimited data 24-month contract
View on EE →
Apple 5G Stay Fast
iPhone 16 Plus 128GB
£40.00/mo + £30 upfront
250GB data 24-month contract
View on EE →
Apple Best for budget
iPhone 16e 128GB
£25.21/mo + £30 upfront
50GB data 24-month contract
View on EE →
Samsung Free upgrade @18mo
Galaxy S25 256GB
£42.00/mo + £30 upfront
Unlimited data 24-month contract
View on EE →
Samsung Galaxy AI
Galaxy S25 Ultra 256GB
£58.00/mo + £30 upfront
Unlimited data 24-month contract
View on EE →

Explore the Chelmsford area

View full coverage analysis for the Chelmsford (CM) area, or enter any UK postcode in the scanner above for a personalised result.

Coverage FAQ — CM8

Q1

Best network for CM8?

EE leads with 84/100 — driven by 70% 5G and 99% 4G in this mixed urban-rural part of Chelmsford.

Q2

Is 5G available in CM8?

EE provides strong 5G coverage at 70%. Three follows at 55%.

Q3

Which network has the best 4G?

EE leads 4G too at 99%. Reliable 4G is critical in mixed urban-rural areas.

Q4

Is O2 worth considering?

O2 scores 75/100 in CM8 (51% 5G, 99% 4G). It may suit certain tariff or price preferences despite trailing the top two.