Product Features . Spacemax™SmartThings AI Energy Mode – WiFi EmbeddedNo FrostAll-Around CoolingPower Cool / Power Freeze . SmartThings AI Energy ModeReduce your energy use by up to 15%* with AI Energy mode**. If you choose Custom Mode If your estimated electricity bill exceeds your preset target it operates AI Energy Mode automatically. It optimises the compressor speed and defrost cycle based on your usage pattern and surroundings. . * Available on specific models from May 2023 through a Wi-Fi update. Test results based comparing the factory setting temperature when using AI Energy mode and without using AI Energy mode. Results may vary based on usage conditions.. **Available via  SmartThings app on Android and iOS. A Wi-Fi connection and a Samsung account are required.  SpaceMax™ TechnologyStore more food in an extra large 390 liter* fridge with a standard 600mm depth design which will seamlessly align with your cabinets. SpaceMax™ technology’s high-efficiency insulation makes the walls much thinner. So it creates more storage space without sticking out from your work surface. . * All-around Cooling RB38** = 390 liter RB34** = 340 liter. Twin Cooling RB38** = 390 liter. Smart maintenance. Easy upkeep. SmartThings Home CareTake care of your refrigerator more easily. SmartThings Home Care* provides real-time monitoring and alerts. You can check on its status including the condition of the water filter. It also automatically notifies you if parts need replacing or problems are detected and suggests a solution.. *Available on Android and iOS devices. A Wi-Fi connection and a Samsung account are required. All-around CoolingMake sure that all of your food is properly cooled. All-around Cooling cools each compartment evenly from corner to corner. It continually checks the temperature and circulates cool air through strategically placed vents. So food is kept at the optimum temperature and stays fresh. Metal CoolingMaintain the optimal temperature inside the fridge so food stays fresh even if you frequently open and close the door. A Metal Cooling plate Metal Shelf and Flat Metal Duct retain the cold from the air and help to restore any heat loss. And they add a premium look and are easy to wipe clean.  No FrostAvoid wasting time and power defrosting the refrigerator. No Frost technology enhances the air circulation to maintain a constant temperature which prevents the buildup of ice. It also reaches the target temperature much faster. And places less demand on the cooling system so it lasts longer. Humidity Fresh+Preserve the original texture flavor and taste of perishable food for longer. You can adjust the humidity in the Humidity Fresh + drawer simply by spinning the control knob. It creates the ideal environment for storing different fruits and vegetables so they stay crisp fresh and juicy.  Power Cool + Power FreezeEnjoy a rapid cooling performance. At the touch of a button Power Cool blows intensely cold air into the fridge to quickly cool your groceries or favorite drinks. Power Freeze delivers a fast blast of cold air into the freezer. It’s great for freezing or firming up frozen food and making ice.  Digital Inverter TechnologyEnjoy less noise and greater energy efficiency. The Digital Inverter Compressor automatically adjusts its speed in response to cooling demand. So it’s quieter than a library producing just 35dB(B). It also complies with new energy regulations saving you money..