O2 SIM Only Deals

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  • Exclusivei
    O2 SIM - 12 month contract
    More Close
    Your monthly cost
    Monthly cost for 3 months(from 7 January 2026)
    £7.50
    Monthly cost for 9 months(from 7 April 2026)
    £10.00£2.50 price rise
    Average
    £9.38
    Your cost breakdown
    Total contract length
    12 months
    Total cost of contract
    £112.50
    Effective monthly cost*
    £9.38
    *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 3 months £7.50/month
    4-12 months £10.00/month
    Average £9.38/month
    Contract length 12 months
    Total cost of ownership £112.50
    • 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 3 months(from 7 January 2026)
    £8.00
    Monthly cost for 9 months(from 7 April 2026)
    £10.50£2.50 price rise
    Average
    £9.88
    Your cost breakdown
    Total contract length
    12 months
    Total cost of contract
    £118.50
    Effective monthly cost*
    £9.88
    *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 3 months £8.00/month
    4-12 months £10.50/month
    Average £9.88/month
    Contract length 12 months
    Total cost of ownership £118.50
    • 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 3 months(from 7 January 2026)
    £9.00
    Monthly cost for 9 months(from 7 April 2026)
    £11.50£2.50 price rise
    Average
    £10.88
    Your cost breakdown
    Total contract length
    12 months
    Total cost of contract
    £130.50
    Effective monthly cost*
    £10.88
    *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
    72GB data
    First 3 months £9.00/month
    4-12 months £11.50/month
    Average £10.88/month
    Contract length 12 months
    Total cost of ownership £130.50
    • 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 3 months(from 7 January 2026)
    £10.00
    Monthly cost for 9 months(from 7 April 2026)
    £12.50£2.50 price rise
    Average
    £11.88
    Your cost breakdown
    Total contract length
    12 months
    Total cost of contract
    £142.50
    Effective monthly cost*
    £11.88
    *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 3 months £10.00/month
    4-12 months £12.50/month
    Average £11.88/month
    Contract length 12 months
    Total cost of ownership £142.50
    • 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 3 months(from 7 January 2026)
    £14.00
    Monthly cost for 9 months(from 7 April 2026)
    £16.50£2.50 price rise
    Average
    £15.88
    Your cost breakdown
    Total contract length
    12 months
    Total cost of contract
    £190.50
    Effective monthly cost*
    £15.88
    *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
    175GB data
    First 3 months £14.00/month
    4-12 months £16.50/month
    Average £15.88/month
    Contract length 12 months
    Total cost of ownership £190.50
    • 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 3 months(from 7 January 2026)
    £16.00
    Monthly cost for 9 months(from 7 April 2026)
    £18.50£2.50 price rise
    Average
    £17.88
    Your cost breakdown
    Total contract length
    12 months
    Total cost of contract
    £214.50
    Effective monthly cost*
    £17.88
    *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 3 months £16.00/month
    4-12 months £18.50/month
    Average £17.88/month
    Contract length 12 months
    Total cost of ownership £214.50
    • 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 3 months(from 7 January 2026)
    £16.00
    Monthly cost for 12 months(from 7 April 2026)
    £18.50£2.50 price rise
    Monthly cost for 9 months(from 7 April 2027)
    £21.00£2.50 price rise
    Average
    £19.13
    Your cost breakdown
    Total contract length
    24 months
    Total cost of contract
    £459.00
    Effective monthly cost*
    £19.13
    *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 3 months £16.00/month
    4-15 months £18.50/month
    16-24 months £21.00/month
    Average £19.13/month
    Contract length 24 months
    Total cost of ownership £459.00
    • 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 3 months(from 7 January 2026)
    £17.99
    Monthly cost for 12 months(from 7 April 2026)
    £20.49£2.50 price rise
    Monthly cost for 9 months(from 7 April 2027)
    £22.99£2.50 price rise
    Average
    £21.12
    Your cost breakdown
    Total contract length
    24 months
    Total cost of contract
    £506.76
    Effective monthly cost*
    £21.12
    *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 3 months £17.99/month
    4-15 months £20.49/month
    16-24 months £22.99/month
    Average £21.12/month
    Contract length 24 months
    Total cost of ownership £506.76
    • 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 3 months(from 7 January 2026)
    £18.00
    Monthly cost for 12 months(from 7 April 2026)
    £20.50£2.50 price rise
    Monthly cost for 9 months(from 7 April 2027)
    £23.00£2.50 price rise
    Average
    £21.13
    Your cost breakdown
    Total contract length
    24 months
    Total cost of contract
    £507.00
    Effective monthly cost*
    £21.13
    *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 3 months £18.00/month
    4-15 months £20.50/month
    16-24 months £23.00/month
    Average £21.13/month
    Contract length 24 months
    Total cost of ownership £507.00
    • 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 3 months(from 7 January 2026)
    £20.00
    Monthly cost for 12 months(from 7 April 2026)
    £22.50£2.50 price rise
    Monthly cost for 9 months(from 7 April 2027)
    £25.00£2.50 price rise
    Average
    £23.13
    Your cost breakdown
    Total contract length
    24 months
    Total cost of contract
    £555.00
    Effective monthly cost*
    £23.13
    *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
    Unlimited data
    First 3 months £20.00/month
    4-15 months £22.50/month
    16-24 months £25.00/month
    Average £23.13/month
    Contract length 24 months
    Total cost of ownership £555.00
    • 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
  • Exclusivei
    O2 SIM - 30 day rolling
    More Close
    Your monthly cost
    Monthly cost for 1 month(no price rises)
    £30.00
    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
    150GB data
    Monthly cost £30.00/month
    Contract length No contract
    • No price rises
    • Unlimited minutes and texts
    • eSIM available
    • 5G speeds
    See deal
    Sold by O2
  • O2 SIM - 12 month contract
    More Close
    Your monthly cost
    Monthly cost for 3 months(from 7 January 2026)
    £35.00
    Monthly cost for 9 months(from 7 April 2026)
    £37.50£2.50 price rise
    Average
    £36.88
    Your cost breakdown
    Total contract length
    12 months
    Total cost of contract
    £442.50
    Effective monthly cost*
    £36.88
    *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
    Unlimited data
    First 3 months £35.00/month
    4-12 months £37.50/month
    Average £36.88/month
    Contract length 12 months
    Total cost of ownership £442.50
    • Unlimited minutes and texts
    • eSIM available
    • 5G speeds
    See deal
    Sold by O2
You've viewed 15 of 16 deals
Deals last updated: 10 hours 35 minutes ago
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