Yes, Great Deal. Phone & $30 Calling Card for $50. This is a GSM Phone.
Here in Tampa, Fl., Straight Talk (Wally World, aka: Wal Mart) uses the ATT, AT&T network for their GSM phones.
If you get a CDMA Wally World phone, it uses the Verizon network which has much better reception, coverage etc
FYI: The CDMA Signal is the most popular signal & best coverage in US (only), but the GSM network is the common World signal outside of the continental U.S., meaning the rest of the planet.
All Smart phones are GSM, so you better check & see if you have GSM coverage in your area before buying one.
P.S. On a surprise trip to San Juan, PR, our Wally World CDMA phones had No Service. Only a GSM phone worked in PR. Also, when you're activating your new phone online, turn the new phone off & on a few times, That seems to kick in the new activation. It's also good to do that once a day (or every few days) with your phone, it updates the software, works better.