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 9 months(from 19 July 2026)
    £6.00
    Monthly cost for 12 months(from 19 April 2027)
    £7.80£1.80 price rise
    Monthly cost for 3 months(from 19 April 2028)
    £9.60£1.80 price rise
    Average
    £7.35
    Your cost breakdown
    Total contract length
    24 months
    Total cost of contract
    £128.40
    Cashback
    £48.00 (redemption)
    Effective monthly cost*
    £5.35
    *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
    Close
    Three
    1GB data
    First 9 months £6.00/month
    10-21 months £7.80/month
    22-24 months £9.60/month
    Average £7.35/month
    Contract length 24 months
    Cashback £48.00 (redemption)
    Total cost of ownership £128.40
    • 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 9 months(from 19 July 2026)
    £7.00
    Monthly cost for 3 months(from 19 April 2027)
    £8.90£1.90 price rise
    Average
    £7.48
    Your cost breakdown
    Total contract length
    12 months
    Total cost of contract
    £89.70
    Effective monthly cost*
    £7.48
    *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
    Close
    Three
    30GB data
    First 9 months £7.00/month
    10-12 months £8.90/month
    Average £7.48/month
    Contract length 12 months
    Total cost of ownership £89.70
    • 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 9 months(from 19 July 2026)
    £8.00
    Monthly cost for 12 months(from 19 April 2027)
    £9.90£1.90 price rise
    Monthly cost for 3 months(from 19 April 2028)
    £11.80£1.90 price rise
    Average
    £9.42
    Your cost breakdown
    Total contract length
    24 months
    Total cost of contract
    £142.20
    Cashback
    £84.00 (redemption)
    Effective monthly cost*
    £5.93
    *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
    Close
    Three
    8GB data
    First 9 months £8.00/month
    10-21 months £9.90/month
    22-24 months £11.80/month
    Average £9.42/month
    Contract length 24 months
    Cashback £84.00 (redemption)
    Total cost of ownership £142.20
    • 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 9 months(from 19 July 2026)
    £9.00
    Monthly cost for 3 months(from 19 April 2027)
    £10.90£1.90 price rise
    Average
    £9.48
    Your cost breakdown
    Total contract length
    12 months
    Total cost of contract
    £65.70
    Cashback
    £48.00 (redemption)
    Effective monthly cost*
    £5.48
    *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
    Close
    Three
    12GB data
    First 9 months £9.00/month
    10-12 months £10.90/month
    Average £9.48/month
    Contract length 12 months
    Cashback £48.00 (redemption)
    Total cost of ownership £65.70
    • 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 9 months(from 19 July 2026)
    £9.00
    Monthly cost for 3 months(from 19 April 2027)
    £10.90£1.90 price rise
    Average
    £9.48
    Your cost breakdown
    Total contract length
    12 months
    Total cost of contract
    £113.70
    Effective monthly cost*
    £9.48
    *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
    Close
    Three
    60GB data
    First 9 months £9.00/month
    10-12 months £10.90/month
    Average £9.48/month
    Contract length 12 months
    Total cost of ownership £113.70
    • 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 9 months(from 19 July 2026)
    £10.00
    Monthly cost for 3 months(from 19 April 2027)
    £11.90£1.90 price rise
    Average
    £10.48
    Your cost breakdown
    Total contract length
    12 months
    Total cost of contract
    £77.70
    Cashback
    £48.00 (redemption)
    Effective monthly cost*
    £6.48
    *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
    Close
    Three
    30GB data
    First 9 months £10.00/month
    10-12 months £11.90/month
    Average £10.48/month
    Contract length 12 months
    Cashback £48.00 (redemption)
    Total cost of ownership £77.70
    • 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 9 months(from 19 July 2026)
    £10.00
    Monthly cost for 3 months(from 19 April 2027)
    £11.90£1.90 price rise
    Average
    £10.48
    Your cost breakdown
    Total contract length
    12 months
    Total cost of contract
    £125.70
    Effective monthly cost*
    £10.48
    *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
    Close
    Three
    80GB data
    First 9 months £10.00/month
    10-12 months £11.90/month
    Average £10.48/month
    Contract length 12 months
    Total cost of ownership £125.70
    • 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 9 months(from 19 July 2026)
    £10.00
    Monthly cost for 12 months(from 19 April 2027)
    £11.90£1.90 price rise
    Monthly cost for 3 months(from 19 April 2028)
    £13.80£1.90 price rise
    Average
    £11.43
    Your cost breakdown
    Total contract length
    24 months
    Total cost of contract
    £178.20
    Cashback
    £96.00 (redemption)
    Effective monthly cost*
    £7.43
    *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
    Close
    Three
    12GB data
    First 9 months £10.00/month
    10-21 months £11.90/month
    22-24 months £13.80/month
    Average £11.43/month
    Contract length 24 months
    Cashback £96.00 (redemption)
    Total cost of ownership £178.20
    • 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 9 months(from 19 July 2026)
    £10.00
    Monthly cost for 12 months(from 19 April 2027)
    £11.90£1.90 price rise
    Monthly cost for 3 months(from 19 April 2028)
    £13.80£1.90 price rise
    Average
    £11.43
    Your cost breakdown
    Total contract length
    24 months
    Total cost of contract
    £274.20
    Effective monthly cost*
    £11.43
    *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
    Close
    Three
    60GB data
    First 9 months £10.00/month
    10-21 months £11.90/month
    22-24 months £13.80/month
    Average £11.43/month
    Contract length 24 months
    Total cost of ownership £274.20
    • 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 9 months(from 19 July 2026)
    £12.00
    Monthly cost for 3 months(from 19 April 2027)
    £14.30£2.30 price rise
    Average
    £12.58
    Your cost breakdown
    Total contract length
    12 months
    Total cost of contract
    £150.90
    Effective monthly cost*
    £12.58
    *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
    Close
    Three
    120GB data
    First 9 months £12.00/month
    10-12 months £14.30/month
    Average £12.58/month
    Contract length 12 months
    Total cost of ownership £150.90
    • 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 9 months(from 19 July 2026)
    £12.00
    Monthly cost for 12 months(from 19 April 2027)
    £14.30£2.30 price rise
    Monthly cost for 3 months(from 19 April 2028)
    £16.60£2.30 price rise
    Average
    £13.73
    Your cost breakdown
    Total contract length
    24 months
    Total cost of contract
    £329.40
    Effective monthly cost*
    £13.73
    *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
    Close
    Three
    120GB data
    First 9 months £12.00/month
    10-21 months £14.30/month
    22-24 months £16.60/month
    Average £13.73/month
    Contract length 24 months
    Total cost of ownership £329.40
    • 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 9 months(from 19 July 2026)
    £15.00
    Monthly cost for 3 months(from 19 April 2027)
    £17.30£2.30 price rise
    Average
    £15.58
    Your cost breakdown
    Total contract length
    12 months
    Total cost of contract
    £78.90
    Cashback
    £108.00 (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
    Close
    Three
    100GB data
    First 9 months £15.00/month
    10-12 months £17.30/month
    Average £15.58/month
    Contract length 12 months
    Cashback £108.00 (redemption)
    Total cost of ownership £78.90
    • 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 9 months(from 19 July 2026)
    £16.00
    Monthly cost for 3 months(from 19 April 2027)
    £18.30£2.30 price rise
    Average
    £16.58
    Your cost breakdown
    Total contract length
    12 months
    Total cost of contract
    £126.90
    Cashback
    £72.00 (redemption)
    Effective monthly cost*
    £10.58
    *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
    Close
    Three
    250GB data
    First 9 months £16.00/month
    10-12 months £18.30/month
    Average £16.58/month
    Contract length 12 months
    Cashback £72.00 (redemption)
    Total cost of ownership £126.90
    • 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 9 months(from 19 July 2026)
    £16.00
    Monthly cost for 12 months(from 19 April 2027)
    £18.30£2.30 price rise
    Monthly cost for 3 months(from 19 April 2028)
    £20.60£2.30 price rise
    Average
    £17.72
    Your cost breakdown
    Total contract length
    24 months
    Total cost of contract
    £425.40
    Effective monthly cost*
    £17.72
    *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
    Close
    Three
    250GB data
    First 9 months £16.00/month
    10-21 months £18.30/month
    22-24 months £20.60/month
    Average £17.72/month
    Contract length 24 months
    Total cost of ownership £425.40
    • 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 9 months(from 19 July 2026)
    £17.00
    Monthly cost for 3 months(from 19 April 2027)
    £19.30£2.30 price rise
    Average
    £17.58
    Your cost breakdown
    Total contract length
    12 months
    Total cost of contract
    £114.90
    Cashback
    £96.00 (redemption)
    Effective monthly cost*
    £9.58
    *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
    Close
    Three
    Unlimited data
    First 9 months £17.00/month
    10-12 months £19.30/month
    Average £17.58/month
    Contract length 12 months
    Cashback £96.00 (redemption)
    Total cost of ownership £114.90
    • 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: 35 minutes ago
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