You can make a decision based on the length of contract, download allowance, or monthly tariff.
Contract duration for a Three dongle package is either 12 months, 18 months, or 2 years. The cheapest deal costs only £10 every month for 12 months but you will have to pay for the Three broadband dongle.
The price of the dongle is £48.93 and you will get only 1 GB of download allowance for the month. Of course it would be wiser to get a package that comes with a free Three USB dongle and bigger download limit.
This way, you get value for your money and you will be able to download more data and spend more time online. For a 12-month contract, you will get a bigger download allowance if you purchase the deal that costs £15 or £25 every month.
The dongle comes free with these deals. For the contracts lasting 18 or 24 months, the USB dongle will be given for free. Data limit varies according to the plan you choose. Check out the best online three usb dongle deals today via Mobile Phone Deal