Artificial IntelligenceCryptocurrencyMetaverseCybersecurityTech Forward

Here’s How to Get Half Off the iPhone 6s

January 27, 2016, 4:26 PM UTC
Apple's I Phone 6S : Launch at Apple Opera Store In Paris
PARIS, FRANCE - SEPTEMBER 25: A customer checks the new iPhone 6s displayed at the Apple Store Opera on September 25, 2015 in Paris, France. Apple launched the new iPhone 6s and iPhone 6s Plus with more shortcuts and bigger screen than the iPhone 6. (Photo by Chesnot/Getty Images)
Photograph by Chesnot — Getty Images

T-Mobile, the company that has billed itself the “Un-Carrier” for instigating sweeping changes to how mobile carriers operate, is offering a compelling deal on Apple’s iPhone.

T-Mobile (AAPL) iPhone 6s and iPhone 6s Plus. The company is also offering the deal on Samsung’s Galaxy S6 line, the LG G4, and other high-end handsets.

The trouble, however, is that it’s not as simple as going to T-Mobile and buying a new smartphone. In order to qualify for the deal, customers will need to buy another device from the same manufacturer of equal or greater value. So, if customers want the deal on the iPhone 6s, for example, they’ll need to buy a full-priced iPhone 6s in order to take advantage. Buying a Samsung Galaxy S6 and then trying to get half off on the iPhone 6s Plus won’t qualify.

Get Data Sheet, Fortune’s technology newsletter.

Still, the T-Mobile plan is one that could garner some attention among consumers. With two-year contracts now dead, customers are forced to either pay upfront for a smartphone or pay for the device over time in monthly installments. A half-off deal allows customers to potentially save hundreds of dollars. The 128GB iPhone 6s, for example, costs $27.09 per month at T-Mobile. With its new half-off offer, that price is cut to about $13.55, saving customers over $325 in two years.

For its part, T-Mobile argues that it’s providing a much-needed service to its customers. The company says that 70% of families won’t upgrade all of their phones at the same time due in part to costs, effectively leaving some family members with “old hand-me-down phones.”

For more cell phone news, read: Cell Phone Trackers Leads Dozens to Atlanta Home

Still, T-Mobile isn’t the only company that’s trying to woo customers to buy more devices. Sprint (S), for instance, offers a $50 service credit when customers pick up a new iPhone or Samsung Galaxy device. Verizon (VZ) is offering a similar deal to T-Mobile’s by offering half off on select Android devices, including the Motorola Droid Turbo 2 and Maxx 2. Verizon is not, however, offering the same half-off deals on the iPhone. AT&T (T) is offering some discounts on less-popular devices.

Ultimately, however, T-Mobile’s offer seems best for families that want to save some money on higher-end smartphones. However, the handset is just one part of the overall equation. Debate rages over which carrier offers the fastest and most reliable network, and depending on where certain people live, choosing another carrier over T-Mobile may make some sense to customers.

Regardless, the deal is available now and a compelling one for anyone looking to save some cash on a new iPhone.

For more about the iPhone, watch:

T-Mobile says its Half-Off Smartphone Event is good as long as supplies last. It’s offered both online and in-store, and is available to both new and existing T-Mobile Simple Choice customers.

T-Mobile did not immediately respond to a request for comment on exactly how long its offer will last.