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 7 months(from 4 September 2026)
    £6.00
    Monthly cost for 12 months(from 4 April 2027)
    £7.80£1.80 price rise
    Monthly cost for 5 months(from 4 April 2028)
    £9.60£1.80 price rise
    Average
    £7.65
    Your cost breakdown
    Total contract length
    24 months
    Total cost of contract
    £135.60
    Cashback
    £48.00 (redemption)
    Effective monthly cost*
    £5.65
    *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 7 months £6.00/month
    8-19 months £7.80/month
    20-24 months £9.60/month
    Average £7.65/month
    Contract length 24 months
    Cashback £48.00 (redemption)
    Total cost of ownership £135.60
    • 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 7 months(from 4 September 2026)
    £7.00
    Monthly cost for 5 months(from 4 April 2027)
    £8.90£1.90 price rise
    Average
    £7.79
    Your cost breakdown
    Total contract length
    12 months
    Total cost of contract
    £93.50
    Effective monthly cost*
    £7.79
    *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 7 months £7.00/month
    8-12 months £8.90/month
    Average £7.79/month
    Contract length 12 months
    Total cost of ownership £93.50
    • 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 7 months(from 4 September 2026)
    £8.00
    Monthly cost for 12 months(from 4 April 2027)
    £9.90£1.90 price rise
    Monthly cost for 5 months(from 4 April 2028)
    £11.80£1.90 price rise
    Average
    £9.74
    Your cost breakdown
    Total contract length
    24 months
    Total cost of contract
    £149.80
    Cashback
    £84.00 (redemption)
    Effective monthly cost*
    £6.24
    *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 7 months £8.00/month
    8-19 months £9.90/month
    20-24 months £11.80/month
    Average £9.74/month
    Contract length 24 months
    Cashback £84.00 (redemption)
    Total cost of ownership £149.80
    • 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 7 months(from 4 September 2026)
    £9.00
    Monthly cost for 5 months(from 4 April 2027)
    £10.90£1.90 price rise
    Average
    £9.79
    Your cost breakdown
    Total contract length
    12 months
    Total cost of contract
    £69.50
    Cashback
    £48.00 (redemption)
    Effective monthly cost*
    £5.79
    *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 7 months £9.00/month
    8-12 months £10.90/month
    Average £9.79/month
    Contract length 12 months
    Cashback £48.00 (redemption)
    Total cost of ownership £69.50
    • 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 7 months(from 4 September 2026)
    £9.00
    Monthly cost for 5 months(from 4 April 2027)
    £10.90£1.90 price rise
    Average
    £9.79
    Your cost breakdown
    Total contract length
    12 months
    Total cost of contract
    £117.50
    Effective monthly cost*
    £9.79
    *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 7 months £9.00/month
    8-12 months £10.90/month
    Average £9.79/month
    Contract length 12 months
    Total cost of ownership £117.50
    • 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 7 months(from 4 September 2026)
    £10.00
    Monthly cost for 5 months(from 4 April 2027)
    £11.90£1.90 price rise
    Average
    £10.79
    Your cost breakdown
    Total contract length
    12 months
    Total cost of contract
    £81.50
    Cashback
    £48.00 (redemption)
    Effective monthly cost*
    £6.79
    *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 7 months £10.00/month
    8-12 months £11.90/month
    Average £10.79/month
    Contract length 12 months
    Cashback £48.00 (redemption)
    Total cost of ownership £81.50
    • 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 7 months(from 4 September 2026)
    £10.00
    Monthly cost for 5 months(from 4 April 2027)
    £11.90£1.90 price rise
    Average
    £10.79
    Your cost breakdown
    Total contract length
    12 months
    Total cost of contract
    £129.50
    Effective monthly cost*
    £10.79
    *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 7 months £10.00/month
    8-12 months £11.90/month
    Average £10.79/month
    Contract length 12 months
    Total cost of ownership £129.50
    • 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 7 months(from 4 September 2026)
    £10.00
    Monthly cost for 12 months(from 4 April 2027)
    £11.90£1.90 price rise
    Monthly cost for 5 months(from 4 April 2028)
    £13.80£1.90 price rise
    Average
    £11.74
    Your cost breakdown
    Total contract length
    24 months
    Total cost of contract
    £185.80
    Cashback
    £96.00 (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
    12GB data
    First 7 months £10.00/month
    8-19 months £11.90/month
    20-24 months £13.80/month
    Average £11.74/month
    Contract length 24 months
    Cashback £96.00 (redemption)
    Total cost of ownership £185.80
    • 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 7 months(from 4 September 2026)
    £10.00
    Monthly cost for 12 months(from 4 April 2027)
    £11.90£1.90 price rise
    Monthly cost for 5 months(from 4 April 2028)
    £13.80£1.90 price rise
    Average
    £11.74
    Your cost breakdown
    Total contract length
    24 months
    Total cost of contract
    £281.80
    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
    60GB data
    First 7 months £10.00/month
    8-19 months £11.90/month
    20-24 months £13.80/month
    Average £11.74/month
    Contract length 24 months
    Total cost of ownership £281.80
    • 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 7 months(from 4 September 2026)
    £12.00
    Monthly cost for 5 months(from 4 April 2027)
    £14.30£2.30 price rise
    Average
    £12.96
    Your cost breakdown
    Total contract length
    12 months
    Total cost of contract
    £155.50
    Effective monthly cost*
    £12.96
    *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 7 months £12.00/month
    8-12 months £14.30/month
    Average £12.96/month
    Contract length 12 months
    Total cost of ownership £155.50
    • 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 7 months(from 4 September 2026)
    £12.00
    Monthly cost for 12 months(from 4 April 2027)
    £14.30£2.30 price rise
    Monthly cost for 5 months(from 4 April 2028)
    £16.60£2.30 price rise
    Average
    £14.11
    Your cost breakdown
    Total contract length
    24 months
    Total cost of contract
    £338.60
    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 7 months £12.00/month
    8-19 months £14.30/month
    20-24 months £16.60/month
    Average £14.11/month
    Contract length 24 months
    Total cost of ownership £338.60
    • 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 7 months(from 4 September 2026)
    £15.00
    Monthly cost for 5 months(from 4 April 2027)
    £17.30£2.30 price rise
    Average
    £15.96
    Your cost breakdown
    Total contract length
    12 months
    Total cost of contract
    £83.50
    Cashback
    £108.00 (redemption)
    Effective monthly cost*
    £6.96
    *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 7 months £15.00/month
    8-12 months £17.30/month
    Average £15.96/month
    Contract length 12 months
    Cashback £108.00 (redemption)
    Total cost of ownership £83.50
    • 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 7 months(from 4 September 2026)
    £16.00
    Monthly cost for 5 months(from 4 April 2027)
    £18.30£2.30 price rise
    Average
    £16.96
    Your cost breakdown
    Total contract length
    12 months
    Total cost of contract
    £131.50
    Cashback
    £72.00 (redemption)
    Effective monthly cost*
    £10.96
    *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 7 months £16.00/month
    8-12 months £18.30/month
    Average £16.96/month
    Contract length 12 months
    Cashback £72.00 (redemption)
    Total cost of ownership £131.50
    • 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 7 months(from 4 September 2026)
    £16.00
    Monthly cost for 12 months(from 4 April 2027)
    £18.30£2.30 price rise
    Monthly cost for 5 months(from 4 April 2028)
    £20.60£2.30 price rise
    Average
    £18.11
    Your cost breakdown
    Total contract length
    24 months
    Total cost of contract
    £434.60
    Effective monthly cost*
    £18.11
    *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
    250GB data
    First 7 months £16.00/month
    8-19 months £18.30/month
    20-24 months £20.60/month
    Average £18.11/month
    Contract length 24 months
    Total cost of ownership £434.60
    • 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 7 months(from 4 September 2026)
    £17.00
    Monthly cost for 5 months(from 4 April 2027)
    £19.30£2.30 price rise
    Average
    £17.96
    Your cost breakdown
    Total contract length
    12 months
    Total cost of contract
    £119.50
    Cashback
    £96.00 (redemption)
    Effective monthly cost*
    £9.96
    *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
    Unlimited data
    First 7 months £17.00/month
    8-12 months £19.30/month
    Average £17.96/month
    Contract length 12 months
    Cashback £96.00 (redemption)
    Total cost of ownership £119.50
    • 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
You've viewed 15 of 16 deals
Deals last updated: 2 hours 58 minutes ago
Filters
  • Data >
  • Monthly cost >
  • Contract length >
  • Minutes >
  • Texts >
  • 5G >
Reset Close
Data
Clear Done
Monthly cost
Clear Done
Contract length
Clear Done
Minutes
Clear Done
Texts
Clear Done
5G
Clear Done