CM6 DISTRICT · CHELMSFORD

Best mobile network in CM6 Chelmsford postcode district

Comparing EE, Vodafone, O2 and Three across 5G · 4G · 3G for the CM6 postcode district in Chelmsford.

RESULT · CM6 · CHELMSFORD

Coverage for CM6 district

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

★ BEST OPERATOR
EE
83/100

EE delivers the strongest coverage for the CM6 district in Chelmsford. Scored across 5G, 4G and 3G using the latest UK operator footprint data.

5G
68%
4G
99%
3G
98%

Full ranking — CM6

#1
EE
Overall: 83/100
5G
68%
4G
99%
3G
98%
#2
Three
Overall: 75/100
5G
53%
4G
98%
3G
95%
#3
O2
Overall: 75/100
5G
54%
4G
97%
3G
97%
#4
Vodafone
Overall: 72/100
5G
46%
4G
99%
3G
95%

Coverage analysis — CM6

Drawing on Ofcom Connected Nations 2024 premises coverage statistics, EE delivers the strongest signal in Chelmsford. In this mixed urban-rural area, EE achieves an overall coverage score of 83/100 — driven by good 5G coverage (68%) and rock-solid 4G at 99%. 5G and 4G scores are closely matched, reflecting a mature, stable network.

EE comfortably leads Three by 8 points overall. While Three reaches 53% on 5G and 98% 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 72 respectively.

Best phone deals from EE

Because signal quality matters most when choosing a phone contract, 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 — CM6

Q1

Best network for CM6?

EE leads with 83/100 — driven by 68% 5G and 99% 4G in this mixed urban-rural part of Chelmsford.

Q2

Is 5G available in CM6?

EE provides good 5G coverage at 68%. Three follows at 53%.

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 CM6 (54% 5G, 97% 4G). It may suit certain tariff or price preferences despite trailing the top two.