Three SIM Only Deals

Looking for all networks? See our SIM Only deals page Ofcom price comparison accredited
  • Three SIM - 24 month contract
    More Close
    Your monthly cost
    Monthly cost for 2 months(from 12 February 2026)
    £6.00
    Monthly cost for 12 months(from 12 April 2026)
    £7.80£1.80 price rise
    Monthly cost for 10 months(from 12 April 2027)
    £9.60£1.80 price rise
    Average
    £8.40
    Your cost breakdown
    Total contract length
    24 months
    Total cost of contract
    £153.60
    Cashback
    £48.00 (redemption)
    Effective monthly cost*
    £6.40
    *Effective monthly cost is the total cost of ownership divided by the total contract lengthTotal cost of ownership takes into account any cashback offers
    Three benefits
    • 5G with all plans
    • Also uses Vodafone's network
    • Wi-Fi and VoLTE calling
    • Three+ Rewards App
    • 99%+ UK coverage
    Three complaints Three received an average of 2 complaints per 100,000 customers between January 2025 and March 2025 in Ofcom's pay monthly mobile complaints
    Three more information
    Close
    Three
    1GB data
    First 2 months £6.00/month
    3-14 months £7.80/month
    15-24 months £9.60/month
    Average £8.40/month
    Contract length 24 months
    Cashback £48.00 (redemption)
    Total cost of ownership £153.60
    • Unlimited minutes and texts
    • eSIM available
    • 5G speeds
    See deal
    Sold by Fonehouse
  • Three SIM - 12 month contract
    More Close
    Your monthly cost
    Monthly cost for 12 months(no price rises)
    £7.00
    Your cost breakdown
    Total contract length
    12 months
    Total cost of contract
    £84.00
    Effective monthly cost*
    £7.00
    *Effective monthly cost is the total cost of ownership divided by the total contract length
    Three benefits
    • 5G with all plans
    • Also uses Vodafone's network
    • Wi-Fi and VoLTE calling
    • Three+ Rewards App
    • 99%+ UK coverage
    Three complaints Three received an average of 2 complaints per 100,000 customers between January 2025 and March 2025 in Ofcom's pay monthly mobile complaints
    Three more information
    Close
    Three
    8GB data
    Monthly cost £7.00/month
    Contract length 12 months
    Total cost of ownership £84.00
    • No price rises
    • Unlimited minutes and texts
    • eSIM available
    • 5G speeds
    See deal
    Sold by Reward Mobile
  • Exclusivei
    Three SIM - 12 month contract
    More Close
    Your monthly cost
    Monthly cost for 2 months(from 12 February 2026)
    £7.00
    Monthly cost for 10 months(from 12 April 2026)
    £8.90£1.90 price rise
    Average
    £8.58
    Your cost breakdown
    Total contract length
    12 months
    Total cost of contract
    £103.00
    Effective monthly cost*
    £8.58
    *Effective monthly cost is the total cost of ownership divided by the total contract length
    Three benefits
    • 5G with all plans
    • Also uses Vodafone's network
    • Wi-Fi and VoLTE calling
    • Three+ Rewards App
    • 99%+ UK coverage
    Three complaints Three received an average of 2 complaints per 100,000 customers between January 2025 and March 2025 in Ofcom's pay monthly mobile complaints
    Three more information
    Close
    Three
    15GB data
    First 2 months £7.00/month
    3-12 months £8.90/month
    Average £8.58/month
    Contract length 12 months
    Total cost of ownership £103.00
    • Unlimited minutes and texts
    • eSIM available
    • 5G speeds
    See deal
    Sold by Three
  • Exclusivei
    Three SIM - 12 month contract
    More Close
    Your monthly cost
    Monthly cost for 2 months(from 12 February 2026)
    £8.00
    Monthly cost for 10 months(from 12 April 2026)
    £9.90£1.90 price rise
    Average
    £9.58
    Your cost breakdown
    Total contract length
    12 months
    Total cost of contract
    £115.00
    Effective monthly cost*
    £9.58
    *Effective monthly cost is the total cost of ownership divided by the total contract length
    Three benefits
    • 5G with all plans
    • Also uses Vodafone's network
    • Wi-Fi and VoLTE calling
    • Three+ Rewards App
    • 99%+ UK coverage
    Three complaints Three received an average of 2 complaints per 100,000 customers between January 2025 and March 2025 in Ofcom's pay monthly mobile complaints
    Three more information
    Close
    Three
    30GB data
    First 2 months £8.00/month
    3-12 months £9.90/month
    Average £9.58/month
    Contract length 12 months
    Total cost of ownership £115.00
    • Unlimited minutes and texts
    • eSIM available
    • 5G speeds
    See deal
    Sold by Three
  • Three SIM - 24 month contract
    More Close
    Your monthly cost
    Monthly cost for 2 months(from 12 February 2026)
    £8.00
    Monthly cost for 12 months(from 12 April 2026)
    £9.90£1.90 price rise
    Monthly cost for 10 months(from 12 April 2027)
    £11.80£1.90 price rise
    Average
    £10.53
    Your cost breakdown
    Total contract length
    24 months
    Total cost of contract
    £168.80
    Cashback
    £84.00 (redemption)
    Effective monthly cost*
    £7.03
    *Effective monthly cost is the total cost of ownership divided by the total contract lengthTotal cost of ownership takes into account any cashback offers
    Three benefits
    • 5G with all plans
    • Also uses Vodafone's network
    • Wi-Fi and VoLTE calling
    • Three+ Rewards App
    • 99%+ UK coverage
    Three complaints Three received an average of 2 complaints per 100,000 customers between January 2025 and March 2025 in Ofcom's pay monthly mobile complaints
    Three more information
    Close
    Three
    8GB data
    First 2 months £8.00/month
    3-14 months £9.90/month
    15-24 months £11.80/month
    Average £10.53/month
    Contract length 24 months
    Cashback £84.00 (redemption)
    Total cost of ownership £168.80
    • Unlimited minutes and texts
    • eSIM available
    • 5G speeds
    See deal
    Sold by Fonehouse
  • Three SIM - 24 month contract
    More Close
    Your monthly cost
    Monthly cost for 24 months(no price rises)
    £8.00
    Your cost breakdown
    Total contract length
    24 months
    Total cost of contract
    £192.00
    Effective monthly cost*
    £8.00
    *Effective monthly cost is the total cost of ownership divided by the total contract length
    Three benefits
    • 5G with all plans
    • Also uses Vodafone's network
    • Wi-Fi and VoLTE calling
    • Three+ Rewards App
    • 99%+ UK coverage
    Three complaints Three received an average of 2 complaints per 100,000 customers between January 2025 and March 2025 in Ofcom's pay monthly mobile complaints
    Three more information
    Close
    Three
    8GB data
    Monthly cost £8.00/month
    Contract length 24 months
    Total cost of ownership £192.00
    • No price rises
    • Unlimited minutes and texts
    • eSIM available
    • 5G speeds
    See deal
    Sold by Reward Mobile
  • Exclusivei
    Three SIM - 24 month contract
    More Close
    Your monthly cost
    Monthly cost for 2 months(from 12 February 2026)
    £8.00
    Monthly cost for 12 months(from 12 April 2026)
    £9.90£1.90 price rise
    Monthly cost for 10 months(from 12 April 2027)
    £11.80£1.90 price rise
    Average
    £10.53
    Your cost breakdown
    Total contract length
    24 months
    Total cost of contract
    £252.80
    Effective monthly cost*
    £10.53
    *Effective monthly cost is the total cost of ownership divided by the total contract length
    Three benefits
    • 5G with all plans
    • Also uses Vodafone's network
    • Wi-Fi and VoLTE calling
    • Three+ Rewards App
    • 99%+ UK coverage
    Three complaints Three received an average of 2 complaints per 100,000 customers between January 2025 and March 2025 in Ofcom's pay monthly mobile complaints
    Three more information
    Close
    Three
    30GB data
    First 2 months £8.00/month
    3-14 months £9.90/month
    15-24 months £11.80/month
    Average £10.53/month
    Contract length 24 months
    Total cost of ownership £252.80
    • Unlimited minutes and texts
    • eSIM available
    • 5G speeds
    See deal
    Sold by Three
  • Three SIM - 12 month contract
    More Close
    Your monthly cost
    Monthly cost for 2 months(from 12 February 2026)
    £9.00
    Monthly cost for 10 months(from 12 April 2026)
    £10.90£1.90 price rise
    Average
    £10.58
    Your cost breakdown
    Total contract length
    12 months
    Total cost of contract
    £79.00
    Cashback
    £48.00 (redemption)
    Effective monthly cost*
    £6.58
    *Effective monthly cost is the total cost of ownership divided by the total contract lengthTotal cost of ownership takes into account any cashback offers
    Three benefits
    • 5G with all plans
    • Also uses Vodafone's network
    • Wi-Fi and VoLTE calling
    • Three+ Rewards App
    • 99%+ UK coverage
    Three complaints Three received an average of 2 complaints per 100,000 customers between January 2025 and March 2025 in Ofcom's pay monthly mobile complaints
    Three more information
    Close
    Three
    12GB data
    First 2 months £9.00/month
    3-12 months £10.90/month
    Average £10.58/month
    Contract length 12 months
    Cashback £48.00 (redemption)
    Total cost of ownership £79.00
    • Unlimited minutes and texts
    • eSIM available
    • 5G speeds
    See deal
    Choose a retailer
    • O2
      Fonehouse Open in a new window
    • Metrofone
      Metrofone Open in a new window
    Available from 2 retailers
  • Exclusivei
    Three SIM - 12 month contract
    More Close
    Your monthly cost
    Monthly cost for 2 months(from 12 February 2026)
    £9.00
    Monthly cost for 10 months(from 12 April 2026)
    £10.90£1.90 price rise
    Average
    £10.58
    Your cost breakdown
    Total contract length
    12 months
    Total cost of contract
    £127.00
    Effective monthly cost*
    £10.58
    *Effective monthly cost is the total cost of ownership divided by the total contract length
    Three benefits
    • 5G with all plans
    • Also uses Vodafone's network
    • Wi-Fi and VoLTE calling
    • Three+ Rewards App
    • 99%+ UK coverage
    Three complaints Three received an average of 2 complaints per 100,000 customers between January 2025 and March 2025 in Ofcom's pay monthly mobile complaints
    Three more information
    Close
    Three
    60GB data
    First 2 months £9.00/month
    3-12 months £10.90/month
    Average £10.58/month
    Contract length 12 months
    Total cost of ownership £127.00
    • Unlimited minutes and texts
    • eSIM available
    • 5G speeds
    See deal
    Sold by Three
  • Three SIM - 12 month contract
    More Close
    Your monthly cost
    Monthly cost for 2 months(from 12 February 2026)
    £10.00
    Monthly cost for 10 months(from 12 April 2026)
    £11.90£1.90 price rise
    Average
    £11.58
    Your cost breakdown
    Total contract length
    12 months
    Total cost of contract
    £91.00
    Cashback
    £48.00 (redemption)
    Effective monthly cost*
    £7.58
    *Effective monthly cost is the total cost of ownership divided by the total contract lengthTotal cost of ownership takes into account any cashback offers
    Three benefits
    • 5G with all plans
    • Also uses Vodafone's network
    • Wi-Fi and VoLTE calling
    • Three+ Rewards App
    • 99%+ UK coverage
    Three complaints Three received an average of 2 complaints per 100,000 customers between January 2025 and March 2025 in Ofcom's pay monthly mobile complaints
    Three more information
    Close
    Three
    30GB data
    First 2 months £10.00/month
    3-12 months £11.90/month
    Average £11.58/month
    Contract length 12 months
    Cashback £48.00 (redemption)
    Total cost of ownership £91.00
    • Unlimited minutes and texts
    • eSIM available
    • 5G speeds
    See deal
    Choose a retailer
    • O2
      Fonehouse Open in a new window
    • Metrofone
      Metrofone Open in a new window
    Available from 2 retailers
  • Exclusivei
    Three SIM - 12 month contract
    More Close
    Your monthly cost
    Monthly cost for 2 months(from 12 February 2026)
    £10.00
    Monthly cost for 10 months(from 12 April 2026)
    £11.90£1.90 price rise
    Average
    £11.58
    Your cost breakdown
    Total contract length
    12 months
    Total cost of contract
    £139.00
    Effective monthly cost*
    £11.58
    *Effective monthly cost is the total cost of ownership divided by the total contract length
    Three benefits
    • 5G with all plans
    • Also uses Vodafone's network
    • Wi-Fi and VoLTE calling
    • Three+ Rewards App
    • 99%+ UK coverage
    Three complaints Three received an average of 2 complaints per 100,000 customers between January 2025 and March 2025 in Ofcom's pay monthly mobile complaints
    Three more information
    Close
    Three
    80GB data
    First 2 months £10.00/month
    3-12 months £11.90/month
    Average £11.58/month
    Contract length 12 months
    Total cost of ownership £139.00
    • Unlimited minutes and texts
    • eSIM available
    • 5G speeds
    See deal
    Sold by Three
  • Three SIM - 24 month contract
    More Close
    Your monthly cost
    Monthly cost for 2 months(from 12 February 2026)
    £10.00
    Monthly cost for 12 months(from 12 April 2026)
    £11.90£1.90 price rise
    Monthly cost for 10 months(from 12 April 2027)
    £13.80£1.90 price rise
    Average
    £12.53
    Your cost breakdown
    Total contract length
    24 months
    Total cost of contract
    £204.80
    Cashback
    £96.00 (redemption)
    Effective monthly cost*
    £8.53
    *Effective monthly cost is the total cost of ownership divided by the total contract lengthTotal cost of ownership takes into account any cashback offers
    Three benefits
    • 5G with all plans
    • Also uses Vodafone's network
    • Wi-Fi and VoLTE calling
    • Three+ Rewards App
    • 99%+ UK coverage
    Three complaints Three received an average of 2 complaints per 100,000 customers between January 2025 and March 2025 in Ofcom's pay monthly mobile complaints
    Three more information
    Close
    Three
    12GB data
    First 2 months £10.00/month
    3-14 months £11.90/month
    15-24 months £13.80/month
    Average £12.53/month
    Contract length 24 months
    Cashback £96.00 (redemption)
    Total cost of ownership £204.80
    • Unlimited minutes and texts
    • eSIM available
    • 5G speeds
    See deal
    Sold by Fonehouse
  • Three SIM - 24 month contract
    More Close
    Your monthly cost
    Monthly cost for 24 months(no price rises)
    £10.00
    Your cost breakdown
    Total contract length
    24 months
    Total cost of contract
    £240.00
    Effective monthly cost*
    £10.00
    *Effective monthly cost is the total cost of ownership divided by the total contract length
    Three benefits
    • 5G with all plans
    • Also uses Vodafone's network
    • Wi-Fi and VoLTE calling
    • Three+ Rewards App
    • 99%+ UK coverage
    Three complaints Three received an average of 2 complaints per 100,000 customers between January 2025 and March 2025 in Ofcom's pay monthly mobile complaints
    Three more information
    Close
    Three
    12GB data
    Monthly cost £10.00/month
    Contract length 24 months
    Total cost of ownership £240.00
    • No price rises
    • Unlimited minutes and texts
    • eSIM available
    • 5G speeds
    See deal
    Sold by Reward Mobile
  • Exclusivei
    Three SIM - 24 month contract
    More Close
    Your monthly cost
    Monthly cost for 2 months(from 12 February 2026)
    £10.00
    Monthly cost for 12 months(from 12 April 2026)
    £11.90£1.90 price rise
    Monthly cost for 10 months(from 12 April 2027)
    £13.80£1.90 price rise
    Average
    £12.53
    Your cost breakdown
    Total contract length
    24 months
    Total cost of contract
    £300.80
    Effective monthly cost*
    £12.53
    *Effective monthly cost is the total cost of ownership divided by the total contract length
    Three benefits
    • 5G with all plans
    • Also uses Vodafone's network
    • Wi-Fi and VoLTE calling
    • Three+ Rewards App
    • 99%+ UK coverage
    Three complaints Three received an average of 2 complaints per 100,000 customers between January 2025 and March 2025 in Ofcom's pay monthly mobile complaints
    Three more information
    Close
    Three
    60GB data
    First 2 months £10.00/month
    3-14 months £11.90/month
    15-24 months £13.80/month
    Average £12.53/month
    Contract length 24 months
    Total cost of ownership £300.80
    • Unlimited minutes and texts
    • eSIM available
    • 5G speeds
    See deal
    Sold by Three
  • Exclusivei
    Three SIM - 12 month contract
    More Close
    Your monthly cost
    Monthly cost for 2 months(from 12 February 2026)
    £12.00
    Monthly cost for 10 months(from 12 April 2026)
    £14.30£2.30 price rise
    Average
    £13.92
    Your cost breakdown
    Total contract length
    12 months
    Total cost of contract
    £167.00
    Effective monthly cost*
    £13.92
    *Effective monthly cost is the total cost of ownership divided by the total contract length
    Three benefits
    • 5G with all plans
    • Also uses Vodafone's network
    • Wi-Fi and VoLTE calling
    • Three+ Rewards App
    • 99%+ UK coverage
    Three complaints Three received an average of 2 complaints per 100,000 customers between January 2025 and March 2025 in Ofcom's pay monthly mobile complaints
    Three more information
    Close
    Three
    120GB data
    First 2 months £12.00/month
    3-12 months £14.30/month
    Average £13.92/month
    Contract length 12 months
    Total cost of ownership £167.00
    • Unlimited minutes and texts
    • eSIM available
    • 5G speeds
    See deal
    Sold by Three
You've viewed 15 of 26 deals
Deals last updated: 42 minutes ago
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