Best Mobile Phone Deals in NZ (November 2025)

Below we cover the best deals from mobile phone providers across prepaid and monthly plans. The offers we think deliver the best value are our Deals of the Month!

Deals of the Month: Kogan + Mighty Mobile

This month we have two Deals of the Months, as both Kogan and Mighty Mobile are offering great buy-one-get-one-free (BOGOF) deals:

Kogan

Kogan has two great BOGOF deals:

• Buy One Get One Free (180GB | 356-day plan): 15GB per month + unlimited NZ/OZ calls & texts: $330 for two plans – that’s $13.75 per month, per person, which for 15GB data is a great deal. But you do need to pay the $330 upfront.
• 40% off Kogan’s Medium Monthly (31-day plan): 4GB + unlimited NZ/OZ calls & texts: $15 (usual price $25) – the great thing about this deal is that if you auto-renew you get the discounted price for up to two years!

Mighty Mobile

Mighty Mobile’s 365-plans all come with unlimited data, although cheaper plans have capped data speeds. All plans come with unlimited NZ/OZ calls & texts. This month they are BOGOF!

• Unlimited Fast Plan: speeds up to 10Mbps – $399 (that’s $199.50 per plan)
• Unlimited Faster Plan: speeds up to 50Mbps – $499 (that’s $249.50 per plan)
• Unlimited Fastest Plan: max speed data – $799 (that’s $399.50 per plan)

2degrees

Receive a one-off 7.5GB of rollover data if you move your existing number over to a 2degrees monthly or weekly prepaid plan with a data limit.

Kiwi Mobile

For new customers, Kiwi Mobile is offering half price for three months across both of its mobile plans, which charge per day:

• Choice: 5GB plan + unlimited NZ/OZ calls & texts: $0.65 (usual price $1.30 per day)
• Choice Lite: 1GB + unlimited NZ/OZ calls & texts: $0.295 per day (usual price $0.59 per day)

Kiwi Mobile is also offering half price for six months across both of its mobile plans when you add broadband.

One NZ

One NZ is offering all its prepay customers with plans $17+ a double-data add-on for just $1 per month, until January 20, 2026.

Rocket Mobile

If you bring over your mobile number, Rocket Mobile is offering a one-month 90% discount across two of its plans:

• Rocket Unlimited: at 10Mbps Unlimited NZ/OZ 20GB: $4 (usual price $40)
• Rocket Plus Unlimited: at 40Mbps Unlimited NZ/OZ 20GB: $4.50 (usual price $45)

Skinny

Skinny is offering double the data across all of its $17 or above plans. Skinny is also offering a one-off 8GB of bonus data if you move your existing number over to a Skinny plan $17 or above. Note the data is not rollover data.

Skinny also offers 15% discounts across its 4GB and 10GB 4-week plans if you purchase them upfront for 52 weeks.

Spark

Spark is offering a 3x10GB of bonus data if you move your existing number over to a prepaid plan. Note the data expires after 90 days.

Spark also offers free data for Spotify music on its prepaid plans, plus Spotify discounts across all its plans, including free Spotify Premium (worth $18.99/m) on its $90/m Unlimited Data plan.

Warehouse Mobile

Warehouse Mobile has three current offers:

• Until January 18 next year, get free unlimited data between 5pm and 12am.
• If you’re a new customer bringing over your number, you’ll receive 5GB of free data.
• Free data offers with every third top-up

Phone plan discounts and deals: what to consider

Mobile phone providers are always offering incentives to new customers. However it’s important to not get blinded by the initial discount, and to consider the longer-term implications of your phone plan purchase. Points to consider:

Discount length

Is the discount a one-off, or for the length of the plan? Many plans revert to their original price after the initial discount period meaning, in the long run, you could end up paying more than opting for a cheaper plan without an initial discount.

Data, calls and texts

Does the plan meet your needs in terms of its data, calls and text allowances? There’s no point buying an expensive endless data plan if you rarely make use of your allowance. Or purchasing a cheap, limited plan that ends up costing you extra in top-up packs.

Check the small print

Mobile phone deals always come with Ts&Cs, and it’s important to read them, as they could reveal hidden costs. Also make sure you’re familiar with the conditions of your existing phone plan, as switching to another plan, even with the same provider, could incur penalties.

FAQs about phone plans and deals

Compare prepaid phone providers for free with Canstar!

About the author of this page

Bruce Pitchers is Canstar NZ’s Content Manager. An experienced finance reporter, he has three decades’ experience as a journalist and has worked for major media companies in Australia, the UK and NZ, including ACP, Are Media, Bauer Media Group, Fairfax, Pacific Magazines, News Corp and TVNZ. As a freelancer, he has +worked for The Australian Financial Review, the NZ Financial Markets Authority and major banks and investment companies on both sides of the Tasman.
In his role at Canstar, he has been a regular commentator in the NZ media, including on the Driven, Stuff and One Roof websites, the NZ Herald, Radio NZ, and Newstalk ZB.
Away from Canstar, Bruce creates puzzles for magazines and newspapers, including Woman’s Day and New Idea. He is also the co-author of the murder-mystery book 5 Minute Murder.