O2 SIM Only Deals

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  • Exclusivei
    O2 SIM - 12 month contract
    More Close
    Your monthly cost
    Monthly cost for 5 months(from 26 November 2025)
    £6.99
    Monthly cost for 7 months(from 26 April 2026)
    £9.49£2.50 price rise
    Average
    £8.45
    Your cost breakdown
    Total contract length
    12 months
    Total cost of contract
    £101.38
    Effective monthly cost*
    £8.45
    *Effective monthly cost is the total cost of ownership divided by the total contract length
    O2 benefits
    • Upgrade anytime with O2 Refresh
    • Rewards with O2 Priority
    • 5G with all plans
    • Free EU roaming up to 25GB
    • 99%+ UK coverage
    • Wi-Fi and VoLTE calling
    O2 complaints O2 received an average of 3 complaints per 100,000 customers between January 2025 and March 2025 in Ofcom's pay monthly mobile complaints
    O2 more information
    Close
    O2
    12GB data
    First 5 months £6.99/month
    6-12 months £9.49/month
    Average of months £8.45/month
    Contract length 12 months
    Total cost of ownership £101.38
    • Unlimited minutes and texts
    • eSIM available
    • 5G speeds
    See deal
    Sold by O2
  • Exclusivei
    O2 SIM - 12 month contract
    More Close
    Your monthly cost
    Monthly cost for 5 months(from 26 November 2025)
    £8.00
    Monthly cost for 7 months(from 26 April 2026)
    £10.50£2.50 price rise
    Average
    £9.46
    Your cost breakdown
    Total contract length
    12 months
    Total cost of contract
    £113.50
    Effective monthly cost*
    £9.46
    *Effective monthly cost is the total cost of ownership divided by the total contract length
    O2 benefits
    • Upgrade anytime with O2 Refresh
    • Rewards with O2 Priority
    • 5G with all plans
    • Free EU roaming up to 25GB
    • 99%+ UK coverage
    • Wi-Fi and VoLTE calling
    O2 complaints O2 received an average of 3 complaints per 100,000 customers between January 2025 and March 2025 in Ofcom's pay monthly mobile complaints
    O2 more information
    Close
    O2
    32GB data
    First 5 months £8.00/month
    6-12 months £10.50/month
    Average of months £9.46/month
    Contract length 12 months
    Total cost of ownership £113.50
    • Unlimited minutes and texts
    • eSIM available
    • 5G speeds
    See deal
    Sold by O2
  • Exclusivei
    O2 SIM - 12 month contract
    More Close
    Your monthly cost
    Monthly cost for 5 months(from 26 November 2025)
    £8.50
    Monthly cost for 7 months(from 26 April 2026)
    £11.00£2.50 price rise
    Average
    £9.96
    Your cost breakdown
    Total contract length
    12 months
    Total cost of contract
    £119.50
    Effective monthly cost*
    £9.96
    *Effective monthly cost is the total cost of ownership divided by the total contract length
    O2 benefits
    • Upgrade anytime with O2 Refresh
    • Rewards with O2 Priority
    • 5G with all plans
    • Free EU roaming up to 25GB
    • 99%+ UK coverage
    • Wi-Fi and VoLTE calling
    O2 complaints O2 received an average of 3 complaints per 100,000 customers between January 2025 and March 2025 in Ofcom's pay monthly mobile complaints
    O2 more information
    Close
    O2
    50GB data
    First 5 months £8.50/month
    6-12 months £11.00/month
    Average of months £9.96/month
    Contract length 12 months
    Total cost of ownership £119.50
    • Unlimited minutes and texts
    • eSIM available
    • 5G speeds
    See deal
    Sold by O2
  • Exclusivei
    O2 SIM - 12 month contract
    More Close
    Your monthly cost
    Monthly cost for 5 months(from 26 November 2025)
    £9.50
    Monthly cost for 7 months(from 26 April 2026)
    £12.00£2.50 price rise
    Average
    £10.96
    Your cost breakdown
    Total contract length
    12 months
    Total cost of contract
    £131.50
    Effective monthly cost*
    £10.96
    *Effective monthly cost is the total cost of ownership divided by the total contract length
    O2 benefits
    • Upgrade anytime with O2 Refresh
    • Rewards with O2 Priority
    • 5G with all plans
    • Free EU roaming up to 25GB
    • 99%+ UK coverage
    • Wi-Fi and VoLTE calling
    O2 complaints O2 received an average of 3 complaints per 100,000 customers between January 2025 and March 2025 in Ofcom's pay monthly mobile complaints
    O2 more information
    Close
    O2
    60GB data
    First 5 months £9.50/month
    6-12 months £12.00/month
    Average of months £10.96/month
    Contract length 12 months
    Total cost of ownership £131.50
    • Unlimited minutes and texts
    • eSIM available
    • 5G speeds
    See deal
    Sold by O2
  • Exclusivei
    O2 SIM - 12 month contract
    More Close
    Your monthly cost
    Monthly cost for 5 months(from 26 November 2025)
    £10.00
    Monthly cost for 7 months(from 26 April 2026)
    £12.50£2.50 price rise
    Average
    £11.46
    Your cost breakdown
    Total contract length
    12 months
    Total cost of contract
    £137.50
    Effective monthly cost*
    £11.46
    *Effective monthly cost is the total cost of ownership divided by the total contract length
    O2 benefits
    • Upgrade anytime with O2 Refresh
    • Rewards with O2 Priority
    • 5G with all plans
    • Free EU roaming up to 25GB
    • 99%+ UK coverage
    • Wi-Fi and VoLTE calling
    O2 complaints O2 received an average of 3 complaints per 100,000 customers between January 2025 and March 2025 in Ofcom's pay monthly mobile complaints
    O2 more information
    Close
    O2
    80GB data
    First 5 months £10.00/month
    6-12 months £12.50/month
    Average of months £11.46/month
    Contract length 12 months
    Total cost of ownership £137.50
    • Unlimited minutes and texts
    • eSIM available
    • 5G speeds
    See deal
    Sold by O2
  • Exclusivei
    O2 SIM - 30 day rolling
    More Close
    Your monthly cost
    Monthly cost for 1 month(no price rises)
    £10.00
    O2 benefits
    • Upgrade anytime with O2 Refresh
    • Rewards with O2 Priority
    • 5G with all plans
    • Free EU roaming up to 25GB
    • 99%+ UK coverage
    • Wi-Fi and VoLTE calling
    O2 complaints O2 received an average of 3 complaints per 100,000 customers between January 2025 and March 2025 in Ofcom's pay monthly mobile complaints
    O2 more information
    Close
    O2
    10GB data
    Monthly cost £10.00/month
    Contract length No contract
    • No price rises
    • Unlimited minutes and texts
    • eSIM available
    • 5G speeds
    See deal
    Sold by O2
  • Exclusivei
    O2 SIM - 12 month contract
    More Close
    Your monthly cost
    Monthly cost for 5 months(from 26 November 2025)
    £12.00
    Monthly cost for 7 months(from 26 April 2026)
    £14.50£2.50 price rise
    Average
    £13.46
    Your cost breakdown
    Total contract length
    12 months
    Total cost of contract
    £161.50
    Effective monthly cost*
    £13.46
    *Effective monthly cost is the total cost of ownership divided by the total contract length
    O2 benefits
    • Upgrade anytime with O2 Refresh
    • Rewards with O2 Priority
    • 5G with all plans
    • Free EU roaming up to 25GB
    • 99%+ UK coverage
    • Wi-Fi and VoLTE calling
    O2 complaints O2 received an average of 3 complaints per 100,000 customers between January 2025 and March 2025 in Ofcom's pay monthly mobile complaints
    O2 more information
    Close
    O2
    100GB data
    First 5 months £12.00/month
    6-12 months £14.50/month
    Average of months £13.46/month
    Contract length 12 months
    Total cost of ownership £161.50
    • Unlimited minutes and texts
    • eSIM available
    • 5G speeds
    See deal
    Sold by O2
  • Exclusivei
    O2 SIM - 12 month contract
    More Close
    Your monthly cost
    Monthly cost for 5 months(from 26 November 2025)
    £15.00
    Monthly cost for 7 months(from 26 April 2026)
    £17.50£2.50 price rise
    Average
    £16.46
    Your cost breakdown
    Total contract length
    12 months
    Total cost of contract
    £197.50
    Effective monthly cost*
    £16.46
    *Effective monthly cost is the total cost of ownership divided by the total contract length
    O2 benefits
    • Upgrade anytime with O2 Refresh
    • Rewards with O2 Priority
    • 5G with all plans
    • Free EU roaming up to 25GB
    • 99%+ UK coverage
    • Wi-Fi and VoLTE calling
    O2 complaints O2 received an average of 3 complaints per 100,000 customers between January 2025 and March 2025 in Ofcom's pay monthly mobile complaints
    O2 more information
    Close
    O2
    250GB data
    First 5 months £15.00/month
    6-12 months £17.50/month
    Average of months £16.46/month
    Contract length 12 months
    Total cost of ownership £197.50
    • Unlimited minutes and texts
    • eSIM available
    • 5G speeds
    See deal
    Sold by O2
  • Exclusivei
    O2 SIM - 30 day rolling
    More Close
    Your monthly cost
    Monthly cost for 1 month(no price rises)
    £15.00
    O2 benefits
    • Upgrade anytime with O2 Refresh
    • Rewards with O2 Priority
    • 5G with all plans
    • Free EU roaming up to 25GB
    • 99%+ UK coverage
    • Wi-Fi and VoLTE calling
    O2 complaints O2 received an average of 3 complaints per 100,000 customers between January 2025 and March 2025 in Ofcom's pay monthly mobile complaints
    O2 more information
    Close
    O2
    30GB data
    Monthly cost £15.00/month
    Contract length No contract
    • No price rises
    • Unlimited minutes and texts
    • eSIM available
    • 5G speeds
    See deal
    Sold by O2
  • Exclusivei
    O2 SIM - 12 month contract
    More Close
    Your monthly cost
    Monthly cost for 5 months(from 26 November 2025)
    £16.00
    Monthly cost for 7 months(from 26 April 2026)
    £18.50£2.50 price rise
    Average
    £17.46
    Your cost breakdown
    Total contract length
    12 months
    Total cost of contract
    £209.50
    Effective monthly cost*
    £17.46
    *Effective monthly cost is the total cost of ownership divided by the total contract length
    O2 benefits
    • Upgrade anytime with O2 Refresh
    • Rewards with O2 Priority
    • 5G with all plans
    • Free EU roaming up to 25GB
    • 99%+ UK coverage
    • Wi-Fi and VoLTE calling
    O2 complaints O2 received an average of 3 complaints per 100,000 customers between January 2025 and March 2025 in Ofcom's pay monthly mobile complaints
    O2 more information
    Close
    O2
    300GB data
    First 5 months £16.00/month
    6-12 months £18.50/month
    Average of months £17.46/month
    Contract length 12 months
    Total cost of ownership £209.50
    • Unlimited minutes and texts
    • eSIM available
    • 5G speeds
    See deal
    Sold by O2
  • O2 SIM - 24 month contract
    More Close
    Your monthly cost
    Monthly cost for 5 months(from 26 November 2025)
    £16.00
    Monthly cost for 12 months(from 26 April 2026)
    £18.50£2.50 price rise
    Monthly cost for 7 months(from 26 April 2027)
    £21.00£2.50 price rise
    Average
    £18.71
    Your cost breakdown
    Total contract length
    24 months
    Total cost of contract
    £449.00
    Effective monthly cost*
    £18.71
    *Effective monthly cost is the total cost of ownership divided by the total contract length
    O2 benefits
    • Upgrade anytime with O2 Refresh
    • Rewards with O2 Priority
    • 5G with all plans
    • Free EU roaming up to 25GB
    • 99%+ UK coverage
    • Wi-Fi and VoLTE calling
    O2 complaints O2 received an average of 3 complaints per 100,000 customers between January 2025 and March 2025 in Ofcom's pay monthly mobile complaints
    O2 more information
    Close
    O2
    3GB data
    First 5 months £16.00/month
    6-17 months £18.50/month
    18-24 months £21.00/month
    Average of months £18.71/month
    Contract length 24 months
    Total cost of ownership £449.00
    • Unlimited minutes and texts
    • eSIM available
    • 5G speeds
    See deal
    Sold by O2
  • O2 SIM - 24 month contract
    More Close
    Your monthly cost
    Monthly cost for 5 months(from 26 November 2025)
    £17.99
    Monthly cost for 12 months(from 26 April 2026)
    £20.49£2.50 price rise
    Monthly cost for 7 months(from 26 April 2027)
    £22.99£2.50 price rise
    Average
    £20.70
    Your cost breakdown
    Total contract length
    24 months
    Total cost of contract
    £496.76
    Effective monthly cost*
    £20.70
    *Effective monthly cost is the total cost of ownership divided by the total contract length
    O2 benefits
    • Upgrade anytime with O2 Refresh
    • Rewards with O2 Priority
    • 5G with all plans
    • Free EU roaming up to 25GB
    • 99%+ UK coverage
    • Wi-Fi and VoLTE calling
    O2 complaints O2 received an average of 3 complaints per 100,000 customers between January 2025 and March 2025 in Ofcom's pay monthly mobile complaints
    O2 more information
    Close
    O2
    10GB data
    First 5 months £17.99/month
    6-17 months £20.49/month
    18-24 months £22.99/month
    Average of months £20.70/month
    Contract length 24 months
    Total cost of ownership £496.76
    • Unlimited minutes and texts
    • eSIM available
    • 5G speeds
    See deal
    Sold by O2
  • O2 SIM - 24 month contract
    More Close
    Your monthly cost
    Monthly cost for 5 months(from 26 November 2025)
    £20.00
    Monthly cost for 12 months(from 26 April 2026)
    £22.50£2.50 price rise
    Monthly cost for 7 months(from 26 April 2027)
    £25.00£2.50 price rise
    Average
    £22.71
    Your cost breakdown
    Total contract length
    24 months
    Total cost of contract
    £545.00
    Effective monthly cost*
    £22.71
    *Effective monthly cost is the total cost of ownership divided by the total contract length
    O2 benefits
    • Upgrade anytime with O2 Refresh
    • Rewards with O2 Priority
    • 5G with all plans
    • Free EU roaming up to 25GB
    • 99%+ UK coverage
    • Wi-Fi and VoLTE calling
    O2 complaints O2 received an average of 3 complaints per 100,000 customers between January 2025 and March 2025 in Ofcom's pay monthly mobile complaints
    O2 more information
    Close
    O2
    20GB data
    First 5 months £20.00/month
    6-17 months £22.50/month
    18-24 months £25.00/month
    Average of months £22.71/month
    Contract length 24 months
    Total cost of ownership £545.00
    • Unlimited minutes and texts
    • eSIM available
    • 5G speeds
    See deal
    Sold by O2
  • Exclusivei
    O2 SIM - 30 day rolling
    More Close
    Your monthly cost
    Monthly cost for 1 month(no price rises)
    £20.00
    O2 benefits
    • Upgrade anytime with O2 Refresh
    • Rewards with O2 Priority
    • 5G with all plans
    • Free EU roaming up to 25GB
    • 99%+ UK coverage
    • Wi-Fi and VoLTE calling
    O2 complaints O2 received an average of 3 complaints per 100,000 customers between January 2025 and March 2025 in Ofcom's pay monthly mobile complaints
    O2 more information
    Close
    O2
    50GB data
    Monthly cost £20.00/month
    Contract length No contract
    • No price rises
    • Unlimited minutes and texts
    • eSIM available
    • 5G speeds
    See deal
    Sold by O2
  • O2 SIM - 24 month contract
    More Close
    Your monthly cost
    Monthly cost for 5 months(from 26 November 2025)
    £21.99
    Monthly cost for 12 months(from 26 April 2026)
    £24.49£2.50 price rise
    Monthly cost for 7 months(from 26 April 2027)
    £26.99£2.50 price rise
    Average
    £24.70
    Your cost breakdown
    Total contract length
    24 months
    Total cost of contract
    £592.76
    Effective monthly cost*
    £24.70
    *Effective monthly cost is the total cost of ownership divided by the total contract length
    O2 benefits
    • Upgrade anytime with O2 Refresh
    • Rewards with O2 Priority
    • 5G with all plans
    • Free EU roaming up to 25GB
    • 99%+ UK coverage
    • Wi-Fi and VoLTE calling
    O2 complaints O2 received an average of 3 complaints per 100,000 customers between January 2025 and March 2025 in Ofcom's pay monthly mobile complaints
    O2 more information
    Close
    O2
    40GB data
    First 5 months £21.99/month
    6-17 months £24.49/month
    18-24 months £26.99/month
    Average of months £24.70/month
    Contract length 24 months
    Total cost of ownership £592.76
    • Unlimited minutes and texts
    • eSIM available
    • 5G speeds
    See deal
    Sold by O2
You've viewed 15 of 19 deals
Deals last updated: 3 hours 16 minutes ago
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