Unfortunately for new S4 Mini users, it will likely be a while until they can actually use HD Voice, which promises crisper call quality, less background noise, and simultaneous LGE data and voice service.
To use the service, both the call sender and receiver need to have an HD Voice-supported phone, and be in an area where the service is live. Given that the only two markets with HD Voice are Minneapolis and Chicago, those looking forward to using the enhanced voice quality of AT&T's network will likely have to wait months.
The Galaxy S4 Mini ships with modest specs, but it'll still get you where you need to go, despite it being almost a year old. It ships with a 4.3-inch qHD Super AMOLED display, along with a 1.7GHz dual-core processor, 1.5GB RAM, an 8-megapixel rear camera, a 1.9-megapixel front-facing camera, 8GB internal storage, Micro SD card slot, and 1,900 mAh battery.
As you'd expect from a mini smartphone, the price is only $50 on-contract. Those not looking to sign two years of their lives away to AT&T can just as easily pay $14.24 with Next 18 or $18.50 with Next 12.