Compare O2 Deals

The origins of the O2 network date back as far as 1985 when the UK government first issued two GSM (Global Standard for Mobile Communications) licenses. These were awarded to two companies, namely Vodafone and Cellnet.

O2 began life at this time as the Cellnet network. Right from the very start, Cellnet was at a disadvantage to its rival Vodafone because ownership was split between two companies: BT and Securicor. Unlike Vodafone - at that time, part of the Racal Group - Cellnet decisions needed to be passed by the boards of both companies for investment.

Nevertheless, both networks flourished and they set about creating an infrastructure based on the GSM standard at the 900 MHz frequency channel. By the early 1990s, each network had a customer base of around two million: the mobile boom had begun. Both networks were faced with unprecedented growth, consistently doubling their customer bases, year after year.

Eventually, Cellnet fell behind Vodafone due to its organisational constraints and the decision was taken to re-structure the network, this time with a higher level of share ownership for BT. As a result, BTCellnet emerged and, with decisions being made faster, BTCellnet attempted to narrow the gap with its rival, Vodafone.

Vodafone continued to develop a strong brand identity, while BTCellnet - by this time the second-largest network ahead of Orange and One2One - fell further behind. Further investment was sought from an investment consortium and the company was once again re-badged under a fresh brand: O2.

The O2 network went about establishing a brand identity under the slogan "its your O2, see what you can do". In addition, over 400 UK stores were re-branded as O2 and the company began investing heavily on the Internet.

Compare O2 Mobile Phone Deals
Advanced search: Mobile Phone Features
Phone Network Mins & Texts Deal Information Monthly Cost  
SIM Only SIM Card
SIM Only SIM Card
SIM Only SIM Card deals on O2 100 (12m)
1m contract
£9.00 per month
100
Minutes
Unlimited
Texts
100
MB Data
  • £30 automatic cashback
  • 100 minutes and Unlimited texts per month
  • Average line rental after cash back equivalent to: £6.50
  • Total contract cost over 1 months: £6.50
  • Free SIM Card
This deal includes cashback
£6.50
monthly

£9.00 before cash back
Buy the SIM Only SIM Card on O2 100 (12m) from Onestopphoneshop
SIM Only SIM Card
SIM Only SIM Card
SIM Only SIM Card deals on O2 100 (12m)
1m contract
£9.00 per month
100
Minutes
Unlimited
Texts
100
MB Data
  • £30 automatic cashback
  • 100 minutes and Unlimited texts per month
  • Average line rental after cash back equivalent to: £6.50
  • Total contract cost over 1 months: £6.50
  • Free SIM Card
This deal includes cashback
£6.50
monthly

£9.00 before cash back
Buy the SIM Only SIM Card on O2 100 (12m) from e2save
Nokia 105 black
Nokia 105 black
Nokia 105 black deals on O2 500 (24m)
24m contract
£18.00 per month
500
Minutes
Unlimited
Texts
500
MB Data
  • £256 cashback by multiple redemptions
  • 500 minutes and Unlimited texts per month
  • Average line rental after cash back equivalent to: £7.33
  • Total contract cost over 24 months: £175.92
  • Free Handset
This deal includes cashback
£7.33
monthly

£18.00 before cash back
Buy the Nokia 105 black on O2 500 (24m) from e2save
Nokia 105 black
Nokia 105 black
Nokia 105 black deals on O2 500 (24m)
24m contract
£18.00 per month
500
Minutes
Unlimited
Texts
500
MB Data
  • £256 cashback by multiple redemptions
  • 500 minutes and Unlimited texts per month
  • Average line rental after cash back equivalent to: £7.33
  • Total contract cost over 24 months: £175.92
  • Free Handset
This deal includes cashback
£7.33
monthly

£18.00 before cash back
Buy the Nokia 105 black on O2 500 (24m) from Onestopphoneshop
Nokia 105 black
Nokia 105 black
Nokia 105 black deals on O2 500 (24m)
24m contract
£18.00 per month
500
Minutes
Unlimited
Texts
500
MB Data
  • £256 cashback by multiple redemptions
  • 500 minutes and Unlimited texts per month
  • Average line rental after cash back equivalent to: £7.33
  • Total contract cost over 24 months: £175.92
  • Free Handset
This deal includes cashback
£7.33
monthly

£18.00 before cash back
Buy the Nokia 105 black on O2 500 (24m) from mobiles.co.uk
Nokia 105 blue
Nokia 105 blue
Nokia 105 blue deals on O2 500 (24m)
24m contract
£18.00 per month
500
Minutes
Unlimited
Texts
500
MB Data
  • £256 cashback by multiple redemptions
  • 500 minutes and Unlimited texts per month
  • Average line rental after cash back equivalent to: £7.33
  • Total contract cost over 24 months: £175.92
  • Free Handset
This deal includes cashback
£7.33
monthly

£18.00 before cash back
Buy the Nokia 105 blue on O2 500 (24m) from e2save
Nokia 105 blue
Nokia 105 blue
Nokia 105 blue deals on O2 500 (24m)
24m contract
£18.00 per month
500
Minutes
Unlimited
Texts
500
MB Data
  • £256 cashback by multiple redemptions
  • 500 minutes and Unlimited texts per month
  • Average line rental after cash back equivalent to: £7.33
  • Total contract cost over 24 months: £175.92
  • Free Handset
This deal includes cashback
£7.33
monthly

£18.00 before cash back
Buy the Nokia 105 blue on O2 500 (24m) from Onestopphoneshop
Nokia 105 blue
Nokia 105 blue
Nokia 105 blue deals on O2 500 (24m)
24m contract
£18.00 per month
500
Minutes
Unlimited
Texts
500
MB Data
  • £256 cashback by multiple redemptions
  • 500 minutes and Unlimited texts per month
  • Average line rental after cash back equivalent to: £7.33
  • Total contract cost over 24 months: £175.92
  • Free Handset
This deal includes cashback
£7.33
monthly

£18.00 before cash back
Buy the Nokia 105 blue on O2 500 (24m) from mobiles.co.uk
Nokia 105 black
Nokia 105 black
Nokia 105 black deals on O2 100 (24m)
24m contract
£15.00 per month
100
Minutes
Unlimited
Texts
100
MB Data
  • £182 cashback by multiple redemptions
  • 100 minutes and Unlimited texts per month
  • Average line rental after cash back equivalent to: £7.41
  • Total contract cost over 24 months: £177.84
  • Free Handset
This deal includes cashback
£7.41
monthly

£15.00 before cash back
Buy the Nokia 105 black on O2 100 (24m) from mobiles.co.uk
Nokia 105 black
Nokia 105 black
Nokia 105 black deals on O2 100 (24m)
24m contract
£15.00 per month
100
Minutes
Unlimited
Texts
100
MB Data
  • £182 cashback by multiple redemptions
  • 100 minutes and Unlimited texts per month
  • Average line rental after cash back equivalent to: £7.41
  • Total contract cost over 24 months: £177.84
  • Free Handset
This deal includes cashback
£7.41
monthly

£15.00 before cash back
Buy the Nokia 105 black on O2 100 (24m) from e2save
Nokia 105 black
Nokia 105 black
Nokia 105 black deals on O2 100 (24m)
24m contract
£15.00 per month
100
Minutes
Unlimited
Texts
100
MB Data
  • £182 cashback by multiple redemptions
  • 100 minutes and Unlimited texts per month
  • Average line rental after cash back equivalent to: £7.41
  • Total contract cost over 24 months: £177.84
  • Free Handset
This deal includes cashback
£7.41
monthly

£15.00 before cash back
Buy the Nokia 105 black on O2 100 (24m) from Onestopphoneshop
Nokia 105 blue
Nokia 105 blue
Nokia 105 blue deals on O2 100 (24m)
24m contract
£15.00 per month
100
Minutes
Unlimited
Texts
100
MB Data
  • £182 cashback by multiple redemptions
  • 100 minutes and Unlimited texts per month
  • Average line rental after cash back equivalent to: £7.41
  • Total contract cost over 24 months: £177.84
  • Free Handset
This deal includes cashback
£7.41
monthly

£15.00 before cash back
Buy the Nokia 105 blue on O2 100 (24m) from mobiles.co.uk
Nokia 105 blue
Nokia 105 blue
Nokia 105 blue deals on O2 100 (24m)
24m contract
£15.00 per month
100
Minutes
Unlimited
Texts
100
MB Data
  • £182 cashback by multiple redemptions
  • 100 minutes and Unlimited texts per month
  • Average line rental after cash back equivalent to: £7.41
  • Total contract cost over 24 months: £177.84
  • Free Handset
This deal includes cashback
£7.41
monthly

£15.00 before cash back
Buy the Nokia 105 blue on O2 100 (24m) from e2save
Nokia 105 blue
Nokia 105 blue
Nokia 105 blue deals on O2 100 (24m)
24m contract
£15.00 per month
100
Minutes
Unlimited
Texts
100
MB Data
  • £182 cashback by multiple redemptions
  • 100 minutes and Unlimited texts per month
  • Average line rental after cash back equivalent to: £7.41
  • Total contract cost over 24 months: £177.84
  • Free Handset
This deal includes cashback
£7.41
monthly

£15.00 before cash back
Buy the Nokia 105 blue on O2 100 (24m) from Onestopphoneshop
Nokia 105 black
Nokia 105 black
Nokia 105 black deals on O2 300 (24m)
24m contract
£15.00 per month
300
Minutes
Unlimited
Texts
300
MB Data
  • £180 cashback by multiple redemptions
  • 300 minutes and Unlimited texts per month
  • Average line rental after cash back equivalent to: £7.50
  • Total contract cost over 24 months: £180.00
  • Free Handset
This deal includes cashback
£7.50
monthly

£15.00 before cash back
Buy the Nokia 105 black on O2 300 (24m) from mobiles.co.uk
Nokia 105 blue
Nokia 105 blue
Nokia 105 blue deals on O2 300 (24m)
24m contract
£15.00 per month
300
Minutes
Unlimited
Texts
300
MB Data
  • £180 cashback by multiple redemptions
  • 300 minutes and Unlimited texts per month
  • Average line rental after cash back equivalent to: £7.50
  • Total contract cost over 24 months: £180.00
  • Free Handset
This deal includes cashback
£7.50
monthly

£15.00 before cash back
Buy the Nokia 105 blue on O2 300 (24m) from mobiles.co.uk
Nokia 105 black
Nokia 105 black
Nokia 105 black deals on O2 300 (24m)
24m contract
£17.00 per month
300
Minutes
Unlimited
Texts
300
MB Data
  • £225 cashback by multiple redemptions
  • 300 minutes and Unlimited texts per month
  • Average line rental after cash back equivalent to: £7.62
  • Total contract cost over 24 months: £182.88
  • Free Handset
This deal includes cashback
£7.62
monthly

£17.00 before cash back
Buy the Nokia 105 black on O2 300 (24m) from mobiles.co.uk
Nokia 105 blue
Nokia 105 blue
Nokia 105 blue deals on O2 300 (24m)
24m contract
£17.00 per month
300
Minutes
Unlimited
Texts
300
MB Data
  • £225 cashback by multiple redemptions
  • 300 minutes and Unlimited texts per month
  • Average line rental after cash back equivalent to: £7.62
  • Total contract cost over 24 months: £182.88
  • Free Handset
This deal includes cashback
£7.62
monthly

£17.00 before cash back
Buy the Nokia 105 blue on O2 300 (24m) from mobiles.co.uk
Nokia 105 black
Nokia 105 black
Nokia 105 black deals on O2 300 (24m)
24m contract
£15.00 per month
300
Minutes
Unlimited
Texts
300
MB Data
  • £169 cashback by multiple redemptions
  • 300 minutes and Unlimited texts per month
  • Average line rental after cash back equivalent to: £7.95
  • Total contract cost over 24 months: £190.80
  • Free Handset
This deal includes cashback
£7.95
monthly

£15.00 before cash back
Buy the Nokia 105 black on O2 300 (24m) from e2save
Nokia 105 black
Nokia 105 black
Nokia 105 black deals on O2 300 (24m)
24m contract
£15.00 per month
300
Minutes
Unlimited
Texts
300
MB Data
  • £169 cashback by multiple redemptions
  • 300 minutes and Unlimited texts per month
  • Average line rental after cash back equivalent to: £7.95
  • Total contract cost over 24 months: £190.80
  • Free Handset
This deal includes cashback
£7.95
monthly

£15.00 before cash back
Buy the Nokia 105 black on O2 300 (24m) from Onestopphoneshop
Monthly cost may rise in line with RPI
Close
Call   now on:
and quote deal name
Opening times:
Standard call charges apply

(59,529 Contract phone deals phone deals)

Advanced search: Mobile Phone Features