[CNet]

Consumers looking to trade in their current smartphone for a new one can soon save money through a new deal from Walmart.

Starting September 21, people who bring in their existing phone to a Walmart or Sam’s Club store can earn a credit of anywhere from $50 to $300. The trade-in price depends on the brand and its condition. As a few examples, a working iPhone 5 can score you $300, a Samsung Galaxy S3 $175, and a Galaxy S2 $52.

Coincidentally — or not — Walmart’s news comes just a few hours before Apple is expected to unveil one or more new iPhones. CNET will be covering Apple’s event, which starts at 10 a.m. PT, with a live blog, here.

Buyers must then apply the credit toward the purchase of a new smartphone. Customers can choose a phone with the standard two-year agreement or pick a model through Walmart’s prepaid contract-free Straight Talk plan.

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