Our site uses cookies to give you the best experience. Manage your cookies here or continue shopping if you're happy.

Accept & close
Skip to Content

    Smeg Cucina FMI425S Built In Microwave with Grill - Silver Glass

    AO Five Star MembershipLearn More Free & unlimited delivery, exclusive deals and more
    Become an AO Five Star member

    You can add an AO Five Star membership to your purchase in the basket


    per year

    Back in stock soon
    This one flew off the shelves. But you haven't missed out, it's coming back!
    Notify me when in stock Need help?

    Pop your details below and we’ll let you know when it’s in stock. If you enter a phone number, we may also call you within 24 hours to discuss alternatives.

    Not on our mailing list? Tick to hear about our latest deals and products! Read more about our privacy policy here.

    Product Overview

    Make mealtimes effortless with this built-in silver glass microwave from Smeg. It’s a brilliant choice for smaller households, thanks to its 25 litre capacity. You’ll never wait long to serve up your feasts either, as it has a 900 Watt power output. The automatic cooking programmes set the ideal time and temperature for your dishes, so you can enjoy delicious meals at the touch of a button. With a combination of touch and dial controls, it’s even simple to choose your settings. This model is designed to fit in an eye level cabinet.

    Key Features

    • 25 litre capacity - great for small households
    • 900 Watt power output – cooks food rapidly and evenly
    • Automatic programmes take the guesswork out of cooking
    • Easy-to-use control panel with buttons and dial
    • Dimensions (cm) H38.8 x W59.5 x D40 - Learn more

    Product Specification

    Key Information

    25 Litres
    Microwave with Grill
    Control Panel Lock
    Control Type
    Buttons / Dial
    Convection Oven
    Door Hinge Position
    Integrated Appliance
    Internal Cavity Size (HxWxD)
    20.6 x 36.8 x 32.8 cm
    Number of Power Levels
    Number of Programmes
    Timer Type
    Electronic Programmeable Timer
    Turntable Diameter
    31.5 cm


    Interior Material
    Stainless Steel

    Features We Love

    Automatic Cooking Programmes
    Easy Clean Enamel Interior
    Pizza Function
    Tangential Cooling System


    Comes with Plug/Cable
    Depth for Installation
    37.7 cm
    Electrical Connection
    1.45 KW
    Fits In Eye Level Cabinet
    Fuse Rating
    13 amps
    Height For Installation
    38 cm
    Power Requirements
    Requires Plug/Cable Attaching By An Electrician
    Width For Installation
    56 cm


    Maximum Microwave Power
    900 Watt

    Product Detail

    Country Of Origin
    (H)38.8 x (W)59.5 x (D)40.0
    Dimensions With Packaging
    (H)50 x (W)65.3 x (D)46.6 cm
    18 Kg
    Weight With Packaging
    20.5 Kg

    System and Features

    Grill Power
    1000 Watt


    Manufacturer Warranty
    AO Care Protection plans from £5.49 per month.More info
    2 Year
    Manufacturer Warranty Domestic Use Only

    Features we love

    Tips for measuring up

    There are two types of built-in microwave you can buy – standard and compact. This is a standard model, which means it’s around 60cm wide. Measure your kitchen space to make sure it’ll fit. Also, you’ll need to check the depth of the space, as built in microwaves vary between 45 and 60cm.

    Play Video

    Customer Reviews

    4.7 / 5
    Showing 6 of 63 reviews

    Nice stainless Steel product !

    Very pleased with my Smeg purchase clean lines along with that quality stainless finish. The fitting into the cabinet was spot on and securing was straightforward via the instructions attached. The microwave is slightly louder than my previous although this is not a problem just an observation ! I have not used the grill function as yet. Happy !
    Colour: Stainless Steel
    Reviewed on:

    Unreal microwave

    Looks unreal quality is the best I’ve ever had so much power
    Kevin Rowntree
    Colour: Silver Glass
    Reviewed on:

    Nice Microwave

    Very nice looking appliance, simple to use and cooks very well
    John McKernan
    Colour: Silver Glass
    Reviewed on:

    Replacement model

    Bought same model to replace previous one that stopped working and wasn't fixable. Microwave design is really nice looking and has been updated (improved) slightly with bigger door and inside capacity but still same overall dimensions. Was easy to install and set up so just hope this one stands the test of time!
    Colour: Stainless Steel
    Reviewed on:

    Looks professional

    Really nice appliance. It feels solid and wouldn't look out of place in a professional kitchen. Would've been five stars, but you need to set the clock before operation, which could be a bit inconvenient in the long run.
    Steve D
    Colour: Stainless Steel
    Reviewed on:

    Smeg gem

    Purchased to replace a Smeg microwave that we had for over 15 years. Fitted perfectly in the hole in the oak cabinet due to the fact that Smeg keep the same size of product over the years. Very powerful and quiet, very pleased with the microwave.
    Colour: Stainless Steel
    Reviewed on:

    Any offers are genuine savings. We always want to be able to offer you an incredible deal, so we’ll always match our competitors on price. This means our prices could drop further, or potentially reduce again once a promotional event ends. If our price drops, or you do find what you’re looking for cheaper elsewhere, we’ll offer our price match promise. See terms and conditions.

    Email me this product

    For more information on how we use your data read our privacy policy

    • Connection

      Get your new oven fitted the same day it’s delivered. Our engineers will disconnect your old appliance before getting your new one set up. We'll give your new appliance a full health check to ensure it’s safe and ready to use straight away. 

    • Remove & Recycle
      AO Five Star Member price
      Regular price

      If you’ve bought a new appliance but you don’t want us to connect it for you, all you’ll need to do is disconnect your old one, empty it and place it by the entrance of your property, ready for us to pick up. Or, if you’ve ordered our connection service with a new appliance, we’ll disconnect your old one for you.

      If you haven’t bought a new appliance, we can still collect your old one and take it away for recycling. However, as we won’t be able to come into your home to disconnect it, you’ll need to make sure it’s by the entrance to your property, ready for us to pick up. Our experts will recycle it safely and responsibly in our state-of-the-art facility.

      The cost of our Remove & Recycle service goes towards safely transporting the product to our recycling plant. Under the WEEE regulations, recycling costs are primarily covered by the product manufacturer.

      Also, while we’re picking up your appliance, if you’ve got any smaller kitchen electricals that need recycling – such as kettles, toasters or blenders – we’ll happily take those away too at no extra charge. Just pass them to your driver when we’re picking up your larger appliance.

    • Unpack
      AO Five Star Member price
      Regular price

      Appliances come with quite a bit of bulky packaging. We’ll unpack your item, let you inspect it then take away all of the plastic wrap and foam packaging.