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 1 month(from 2 March 2026)
    £6.00
    Monthly cost for 12 months(from 2 April 2026)
    £7.80£1.80 price rise
    Monthly cost for 11 months(from 2 April 2027)
    £9.60£1.80 price rise
    Average
    £8.55
    Your cost breakdown
    Total contract length
    24 months
    Total cost of contract
    £157.20
    Cashback
    £48.00 (redemption)
    Effective monthly cost*
    £6.55
    *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 month £6.00/month
    2-13 months £7.80/month
    14-24 months £9.60/month
    Average £8.55/month
    Contract length 24 months
    Cashback £48.00 (redemption)
    Total cost of ownership £157.20
    • 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 1 month(from 2 March 2026)
    £7.00
    Monthly cost for 11 months(from 2 April 2026)
    £8.90£1.90 price rise
    Average
    £8.74
    Your cost breakdown
    Total contract length
    12 months
    Total cost of contract
    £104.90
    Effective monthly cost*
    £8.74
    *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 month £7.00/month
    2-12 months £8.90/month
    Average £8.74/month
    Contract length 12 months
    Total cost of ownership £104.90
    • 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 1 month(from 2 March 2026)
    £8.00
    Monthly cost for 11 months(from 2 April 2026)
    £9.90£1.90 price rise
    Average
    £9.74
    Your cost breakdown
    Total contract length
    12 months
    Total cost of contract
    £116.90
    Effective monthly cost*
    £9.74
    *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 month £8.00/month
    2-12 months £9.90/month
    Average £9.74/month
    Contract length 12 months
    Total cost of ownership £116.90
    • 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 1 month(from 2 March 2026)
    £8.00
    Monthly cost for 12 months(from 2 April 2026)
    £9.90£1.90 price rise
    Monthly cost for 11 months(from 2 April 2027)
    £11.80£1.90 price rise
    Average
    £10.69
    Your cost breakdown
    Total contract length
    24 months
    Total cost of contract
    £172.60
    Cashback
    £84.00 (redemption)
    Effective monthly cost*
    £7.19
    *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 month £8.00/month
    2-13 months £9.90/month
    14-24 months £11.80/month
    Average £10.69/month
    Contract length 24 months
    Cashback £84.00 (redemption)
    Total cost of ownership £172.60
    • 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 1 month(from 2 March 2026)
    £8.00
    Monthly cost for 12 months(from 2 April 2026)
    £9.90£1.90 price rise
    Monthly cost for 11 months(from 2 April 2027)
    £11.80£1.90 price rise
    Average
    £10.69
    Your cost breakdown
    Total contract length
    24 months
    Total cost of contract
    £256.60
    Effective monthly cost*
    £10.69
    *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 month £8.00/month
    2-13 months £9.90/month
    14-24 months £11.80/month
    Average £10.69/month
    Contract length 24 months
    Total cost of ownership £256.60
    • 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 1 month(from 2 March 2026)
    £9.00
    Monthly cost for 11 months(from 2 April 2026)
    £10.90£1.90 price rise
    Average
    £10.74
    Your cost breakdown
    Total contract length
    12 months
    Total cost of contract
    £80.90
    Cashback
    £48.00 (redemption)
    Effective monthly cost*
    £6.74
    *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 month £9.00/month
    2-12 months £10.90/month
    Average £10.74/month
    Contract length 12 months
    Cashback £48.00 (redemption)
    Total cost of ownership £80.90
    • 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 1 month(from 2 March 2026)
    £9.00
    Monthly cost for 11 months(from 2 April 2026)
    £10.90£1.90 price rise
    Average
    £10.74
    Your cost breakdown
    Total contract length
    12 months
    Total cost of contract
    £128.90
    Effective monthly cost*
    £10.74
    *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 month £9.00/month
    2-12 months £10.90/month
    Average £10.74/month
    Contract length 12 months
    Total cost of ownership £128.90
    • 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 1 month(from 2 March 2026)
    £10.00
    Monthly cost for 11 months(from 2 April 2026)
    £11.90£1.90 price rise
    Average
    £11.74
    Your cost breakdown
    Total contract length
    12 months
    Total cost of contract
    £92.90
    Cashback
    £48.00 (redemption)
    Effective monthly cost*
    £7.74
    *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 month £10.00/month
    2-12 months £11.90/month
    Average £11.74/month
    Contract length 12 months
    Cashback £48.00 (redemption)
    Total cost of ownership £92.90
    • 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 1 month(from 2 March 2026)
    £10.00
    Monthly cost for 11 months(from 2 April 2026)
    £11.90£1.90 price rise
    Average
    £11.74
    Your cost breakdown
    Total contract length
    12 months
    Total cost of contract
    £140.90
    Effective monthly cost*
    £11.74
    *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 month £10.00/month
    2-12 months £11.90/month
    Average £11.74/month
    Contract length 12 months
    Total cost of ownership £140.90
    • 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 1 month(from 2 March 2026)
    £10.00
    Monthly cost for 12 months(from 2 April 2026)
    £11.90£1.90 price rise
    Monthly cost for 11 months(from 2 April 2027)
    £13.80£1.90 price rise
    Average
    £12.69
    Your cost breakdown
    Total contract length
    24 months
    Total cost of contract
    £208.60
    Cashback
    £96.00 (redemption)
    Effective monthly cost*
    £8.69
    *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 month £10.00/month
    2-13 months £11.90/month
    14-24 months £13.80/month
    Average £12.69/month
    Contract length 24 months
    Cashback £96.00 (redemption)
    Total cost of ownership £208.60
    • 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 1 month(from 2 March 2026)
    £10.00
    Monthly cost for 12 months(from 2 April 2026)
    £11.90£1.90 price rise
    Monthly cost for 11 months(from 2 April 2027)
    £13.80£1.90 price rise
    Average
    £12.69
    Your cost breakdown
    Total contract length
    24 months
    Total cost of contract
    £304.60
    Effective monthly cost*
    £12.69
    *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 month £10.00/month
    2-13 months £11.90/month
    14-24 months £13.80/month
    Average £12.69/month
    Contract length 24 months
    Total cost of ownership £304.60
    • 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 1 month(from 2 March 2026)
    £12.00
    Monthly cost for 11 months(from 2 April 2026)
    £14.30£2.30 price rise
    Average
    £14.11
    Your cost breakdown
    Total contract length
    12 months
    Total cost of contract
    £169.30
    Effective monthly cost*
    £14.11
    *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 month £12.00/month
    2-12 months £14.30/month
    Average £14.11/month
    Contract length 12 months
    Total cost of ownership £169.30
    • Unlimited minutes and texts
    • eSIM available
    • 5G speeds
    See deal
    Sold by Three
You've viewed 15 of 26 deals
Deals last updated: 37 minutes ago
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