The short version

Two full ovens and a steam cooking function at a price that undercuts most comparable double wall ovens. The Samsung NV51K6650DG makes a strong case for itself from the first time you load both cavities simultaneously. Roasting the main course in one while baking sides in the other, with both running at completely different temperatures, changes how you approach cooking for a group.

The steam cook function is the feature that sets this model apart from basic double oven competition. Steam keeps baked goods and proteins noticeably moister than dry heat alone. It is not a gimmick once you have used it for bread or chicken.

Who this review is for: Home cooks who regularly cook for groups, host holiday meals, or simply want maximum oven flexibility. Also a strong choice for anyone replacing an older double oven and wanting current smart features without paying for a luxury appliance.

What you need to know about this oven

The NV51K6650DG has two separate oven cavities, each with its own controls and temperature settings. The upper and lower ovens are independent, which means you genuinely run them simultaneously at completely different temperatures without any compromise.

Total capacity across both cavities is listed as 10.2 cubic feet combined. Each cavity is approximately 5.1 cubic feet, which is large enough for a standard baking sheet or a good-sized roasting pan.

Wi-Fi connectivity through the SmartThings app allows remote preheating and monitoring. The fingerprint-resistant stainless steel finish holds up reasonably well in a busy kitchen, though no stainless is truly fingerprint-proof.

Key specifications

SpecificationDetail
Total Capacity10.2 cubic feet (5.1 cu ft per cavity)
Width30 inches
Fuel TypeElectric
ConvectionYes, both cavities
Steam CookYes, steam injection
Smart FeaturesWi-Fi, SmartThings app
Self CleanYes, both cavities
FinishFingerprint Resistant Stainless Steel

Performance in real use

Convection performance in both cavities is consistent and reliable. Running both ovens simultaneously at different temperatures works exactly as advertised. The lower cavity tends to run about 8 degrees higher than the upper at equivalent settings, which is worth knowing for precise baking. A quick calibration adjustment handles it.

The steam function delivers a genuine difference in moisture retention. Bread baked with steam injection has noticeably better crust and internal texture. Chicken stays juicier than in a comparable non-steam oven. It takes a small amount of water added to the steam reservoir before cooking, which takes about 20 seconds to set up.

Preheat time for both cavities together is slower than a single oven, which is expected. Plan for about 20 minutes to get both to 375 degrees Fahrenheit.

Pros and cons

    Pros
  • Two fully independent ovens with separate controls
  • Steam cook function makes a real difference in results
  • Good value compared to competing double wall ovens
  • Wi-Fi connectivity works reliably once set up
  • Large 5.1 cubic foot capacity per cavity
    Cons
  • Lower cavity runs slightly hotter than upper at same setting
  • Combined preheat takes longer than a single oven
  • Fingerprint-resistant finish is better, not fingerprint-proof
  • Installation requires a larger cutout than a single oven

How it scores

Overall value
9.1
Cooking performance
9.0
Steam cook feature
9.2
Smart features
8.7
Value for money
9.3

Our verdict

The strongest double wall oven at this price point

The Samsung NV51K6650DG earns its rating by delivering genuine double oven capability with a steam function that actually improves results, at a price that competes well against double ovens that offer less. It is not the cheapest double oven available, but it provides meaningfully more than the budget options in this category.

For anyone cooking regularly for a group or wanting maximum flexibility from their oven, this is an easy recommendation. The steam function is worth it on its own.

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Frequently asked questions

Can both ovens run at different temperatures simultaneously?
Yes, completely independently. Each cavity has its own controls and heating elements. Running the upper at 325 degrees for a delicate bake while the lower is at 450 for roasting is straightforward and works reliably.
How much water does the steam function require?
A small reservoir on the front of the oven holds the water for steam injection. For a standard steam cook cycle, you add about a cup of water. The reservoir is easy to access and refill between cooking sessions.
How does this compare to the Rangaire RWOD301GS?
The Samsung costs more but includes steam cooking, Wi-Fi connectivity, and a fingerprint-resistant finish that the Rangaire does not offer. The Rangaire has glass touch controls and easy reach racks as its differentiators. For buyers focused on cooking performance over smart features, either is worth considering. See our full comparison for a detailed breakdown.