The SG and ZG are not exactly the same though. Just from the pictures I can see that the bases are different. The SG has L-shaped legs and a bottom shelf while the ZG has square legs that are larger than the DLX legs but no bottom shelf. There were also different specs for many features. I took a picture of the ZG spec sheet at the store and compared it to the SG specs on the website and there are slight differences in capacities. For example ZG 3778 cubic inch - SG 4859, grilling area ZG 776- SG 811, hopper volume ZG 18 lbs - SG 22, ...

The digital controller controls temperatures from 150F to 500F in 5-degree increments; that’s the most precise we’ve found on a pellet grill, and gives you a good, precise burn. There’s also Sense-Mate, a thermal sensor that monitors the smoker’s internal temperature, so you can keep an eye on it remotely on your phone via Wifi, letting you adjust the temperature from the app.


The digital controller controls temperatures from 150F to 500F in 5-degree increments; that’s the most precise we’ve found on a pellet grill, and gives you a good, precise burn. There’s also Sense-Mate, a thermal sensor that monitors the smoker’s internal temperature, so you can keep an eye on it remotely on your phone via Wifi, letting you adjust the temperature from the app.
Editor-in-Chief Sean McCoy is a life-long outdoorsman who grew up hunting and fishing central Wisconsin forests and lakes. He joined GearJunkie after a 10-year stint as a newspaperman in the Caribbean, where he learned sailing and wooden-boat repair. Based in GearJunkie's Denver office, McCoy is an avid trail runner, camper, hunter, angler, mountain biker, skier, and beer tester.
Access to electricity has its downfalls. First, if the cord isn’t long enough you will need to make sure you have a proper extension cord. Using the wrong cord is a fire hazard. Do the math (watts / volts = amps) and make sure you have the right extension cord.  The smoker is also less mobile, and if it's stored outside it absolutely must have a cover. Electrical components and weather don’t mix.
The smoker does not hold temperature. I called the service dept and they sent a new controller card and it does not hold temp either. When I contacted the service dept they told me that the grills do not hold temp at the 225 degree setting. If you look at all the Traeger literature and cookbook and recipes all say to smoke at 225. As does every other smoking cookbook. So Traeger manufactures and sells a known defective product. DO NOT BUY TRAEGER.
The wood pellet grill features a dual rack design with a 513 square inch main cooking surface and 187 square inch warming rack. With a 20-pound hopper capacity, the grill has plenty of space for wood pellets to keep grilling during long event and parties when you have many mouths to feed. An automatic pellet feeder makes it easy to maintain the desired temperature, so you can focus on just the grilling itself.  
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