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 6 months(from 18 October 2026)
    £6.00
    Monthly cost for 12 months(from 18 April 2027)
    £7.80£1.80 price rise
    Monthly cost for 6 months(from 18 April 2028)
    £9.60£1.80 price rise
    Average
    £7.80
    Your cost breakdown
    Total contract length
    24 months
    Total cost of contract
    £139.20
    Cashback
    £48.00 (redemption)
    Effective monthly cost*
    £5.80
    *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 6 months £6.00/month
    7-18 months £7.80/month
    19-24 months £9.60/month
    Average £7.80/month
    Contract length 24 months
    Cashback £48.00 (redemption)
    Total cost of ownership £139.20
    • Unlimited minutes and texts
    • eSIM available
    • 5G speeds
    See deal
    Sold by Fonehouse
  • Exclusivei
    Three SIM - 12 month contract
    More Close
    Your monthly cost
    Monthly cost for 6 months(from 18 October 2026)
    £7.00
    Monthly cost for 6 months(from 18 April 2027)
    £8.90£1.90 price rise
    Average
    £7.95
    Your cost breakdown
    Total contract length
    12 months
    Total cost of contract
    £95.40
    Effective monthly cost*
    £7.95
    *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 6 months £7.00/month
    7-12 months £8.90/month
    Average £7.95/month
    Contract length 12 months
    Total cost of ownership £95.40
    • 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 6 months(from 18 October 2026)
    £8.00
    Monthly cost for 12 months(from 18 April 2027)
    £9.90£1.90 price rise
    Monthly cost for 6 months(from 18 April 2028)
    £11.80£1.90 price rise
    Average
    £9.90
    Your cost breakdown
    Total contract length
    24 months
    Total cost of contract
    £153.60
    Cashback
    £84.00 (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
    8GB data
    First 6 months £8.00/month
    7-18 months £9.90/month
    19-24 months £11.80/month
    Average £9.90/month
    Contract length 24 months
    Cashback £84.00 (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 6 months(from 18 October 2026)
    £9.00
    Monthly cost for 6 months(from 18 April 2027)
    £10.90£1.90 price rise
    Average
    £9.95
    Your cost breakdown
    Total contract length
    12 months
    Total cost of contract
    £71.40
    Cashback
    £48.00 (redemption)
    Effective monthly cost*
    £5.95
    *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 6 months £9.00/month
    7-12 months £10.90/month
    Average £9.95/month
    Contract length 12 months
    Cashback £48.00 (redemption)
    Total cost of ownership £71.40
    • Unlimited minutes and texts
    • eSIM available
    • 5G speeds
    See deal
    Choose a retailer
    • Fonehouse
      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 6 months(from 18 October 2026)
    £9.00
    Monthly cost for 6 months(from 18 April 2027)
    £10.90£1.90 price rise
    Average
    £9.95
    Your cost breakdown
    Total contract length
    12 months
    Total cost of contract
    £119.40
    Effective monthly cost*
    £9.95
    *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 6 months £9.00/month
    7-12 months £10.90/month
    Average £9.95/month
    Contract length 12 months
    Total cost of ownership £119.40
    • 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 6 months(from 18 October 2026)
    £10.00
    Monthly cost for 6 months(from 18 April 2027)
    £11.90£1.90 price rise
    Average
    £10.95
    Your cost breakdown
    Total contract length
    12 months
    Total cost of contract
    £83.40
    Cashback
    £48.00 (redemption)
    Effective monthly cost*
    £6.95
    *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 6 months £10.00/month
    7-12 months £11.90/month
    Average £10.95/month
    Contract length 12 months
    Cashback £48.00 (redemption)
    Total cost of ownership £83.40
    • Unlimited minutes and texts
    • eSIM available
    • 5G speeds
    See deal
    Choose a retailer
    • Fonehouse
      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 6 months(from 18 October 2026)
    £10.00
    Monthly cost for 6 months(from 18 April 2027)
    £11.90£1.90 price rise
    Average
    £10.95
    Your cost breakdown
    Total contract length
    12 months
    Total cost of contract
    £131.40
    Effective monthly cost*
    £10.95
    *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 6 months £10.00/month
    7-12 months £11.90/month
    Average £10.95/month
    Contract length 12 months
    Total cost of ownership £131.40
    • 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 6 months(from 18 October 2026)
    £10.00
    Monthly cost for 12 months(from 18 April 2027)
    £11.90£1.90 price rise
    Monthly cost for 6 months(from 18 April 2028)
    £13.80£1.90 price rise
    Average
    £11.90
    Your cost breakdown
    Total contract length
    24 months
    Total cost of contract
    £189.60
    Cashback
    £96.00 (redemption)
    Effective monthly cost*
    £7.90
    *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 6 months £10.00/month
    7-18 months £11.90/month
    19-24 months £13.80/month
    Average £11.90/month
    Contract length 24 months
    Cashback £96.00 (redemption)
    Total cost of ownership £189.60
    • Unlimited minutes and texts
    • eSIM available
    • 5G speeds
    See deal
    Sold by Fonehouse
  • Exclusivei
    Three SIM - 24 month contract
    More Close
    Your monthly cost
    Monthly cost for 6 months(from 18 October 2026)
    £10.00
    Monthly cost for 12 months(from 18 April 2027)
    £11.90£1.90 price rise
    Monthly cost for 6 months(from 18 April 2028)
    £13.80£1.90 price rise
    Average
    £11.90
    Your cost breakdown
    Total contract length
    24 months
    Total cost of contract
    £285.60
    Effective monthly cost*
    £11.90
    *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 6 months £10.00/month
    7-18 months £11.90/month
    19-24 months £13.80/month
    Average £11.90/month
    Contract length 24 months
    Total cost of ownership £285.60
    • 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 6 months(from 18 October 2026)
    £12.00
    Monthly cost for 6 months(from 18 April 2027)
    £14.30£2.30 price rise
    Average
    £13.15
    Your cost breakdown
    Total contract length
    12 months
    Total cost of contract
    £157.80
    Effective monthly cost*
    £13.15
    *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 6 months £12.00/month
    7-12 months £14.30/month
    Average £13.15/month
    Contract length 12 months
    Total cost of ownership £157.80
    • Unlimited minutes and texts
    • eSIM available
    • 5G speeds
    See deal
    Sold by Three
  • Exclusivei
    Three SIM - 24 month contract
    More Close
    Your monthly cost
    Monthly cost for 6 months(from 18 October 2026)
    £12.00
    Monthly cost for 12 months(from 18 April 2027)
    £14.30£2.30 price rise
    Monthly cost for 6 months(from 18 April 2028)
    £16.60£2.30 price rise
    Average
    £14.30
    Your cost breakdown
    Total contract length
    24 months
    Total cost of contract
    £343.20
    Effective monthly cost*
    £14.30
    *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 6 months £12.00/month
    7-18 months £14.30/month
    19-24 months £16.60/month
    Average £14.30/month
    Contract length 24 months
    Total cost of ownership £343.20
    • 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 6 months(from 18 October 2026)
    £14.00
    Monthly cost for 6 months(from 18 April 2027)
    £16.30£2.30 price rise
    Average
    £15.15
    Your cost breakdown
    Total contract length
    12 months
    Total cost of contract
    £181.80
    Effective monthly cost*
    £15.15
    *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
    250GB data
    First 6 months £14.00/month
    7-12 months £16.30/month
    Average £15.15/month
    Contract length 12 months
    Total cost of ownership £181.80
    • 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 6 months(from 18 October 2026)
    £15.00
    Monthly cost for 6 months(from 18 April 2027)
    £17.30£2.30 price rise
    Average
    £16.15
    Your cost breakdown
    Total contract length
    12 months
    Total cost of contract
    £85.80
    Cashback
    £108.00 (redemption)
    Effective monthly cost*
    £7.15
    *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
    100GB data
    First 6 months £15.00/month
    7-12 months £17.30/month
    Average £16.15/month
    Contract length 12 months
    Cashback £108.00 (redemption)
    Total cost of ownership £85.80
    • Unlimited minutes and texts
    • eSIM available
    • 5G speeds
    See deal
    Choose a retailer
    • Fonehouse
      Fonehouse Open in a new window
    • Metrofone
      Metrofone Open in a new window
    Available from 2 retailers
  • Three SIM - 12 month contract
    More Close
    Your monthly cost
    Monthly cost for 6 months(from 18 October 2026)
    £16.00
    Monthly cost for 6 months(from 18 April 2027)
    £18.30£2.30 price rise
    Average
    £17.15
    Your cost breakdown
    Total contract length
    12 months
    Total cost of contract
    £133.80
    Cashback
    £72.00 (redemption)
    Effective monthly cost*
    £11.15
    *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
    250GB data
    First 6 months £16.00/month
    7-12 months £18.30/month
    Average £17.15/month
    Contract length 12 months
    Cashback £72.00 (redemption)
    Total cost of ownership £133.80
    • Unlimited minutes and texts
    • eSIM available
    • 5G speeds
    See deal
    Choose a retailer
    • Fonehouse
      Fonehouse Open in a new window
    • Metrofone
      Metrofone Open in a new window
    Available from 2 retailers
  • Exclusivei
    Three SIM - 24 month contract
    More Close
    Your monthly cost
    Monthly cost for 6 months(from 18 October 2026)
    £16.00
    Monthly cost for 12 months(from 18 April 2027)
    £18.30£2.30 price rise
    Monthly cost for 6 months(from 18 April 2028)
    £20.60£2.30 price rise
    Average
    £18.30
    Your cost breakdown
    Total contract length
    24 months
    Total cost of contract
    £439.20
    Effective monthly cost*
    £18.30
    *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
    250GB data
    First 6 months £16.00/month
    7-18 months £18.30/month
    19-24 months £20.60/month
    Average £18.30/month
    Contract length 24 months
    Total cost of ownership £439.20
    • Unlimited minutes and texts
    • eSIM available
    • 5G speeds
    See deal
    Sold by Three
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Deals last updated: 1 hour 3 minutes ago
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