Available 
Hisense PureFlat Infinite RQ758N4SWSE Total No Frost Multi-door American Fridge Freezer
from £1,199.
£1,199
Rated 4.9 / 5 from up to 3,271 reviews
Colours tracked: Stainless Steel
Guide
What is a frost free fridge freezer and do you need one?
Frost free fridge freezers cut down on manual defrosting, but the real buying decision is still about size, energy, fit and value.
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Last verified: 2026-07-11
What does frost free actually mean?
A frost free fridge freezer uses air circulation and automatic defrosting to limit ice build-up inside the freezer section, so you do not need to chip away at frost as often. In shopping terms, frost free and no frost are usually used in very similar ways, but it is still worth checking the model page for the exact feature wording and any extra functions behind it. That matters because Total No Frost on a Hisense PureFlat Infinite RQ758N4SWSE or a Samsung Family Hub model is a convenience label, not a guarantee that every model works in exactly the same way.
Benefits and drawbacks of frost free models
The biggest benefit is reduced manual defrosting, which is useful if you want easier storage management and less ongoing upkeep. The trade-off is that frost free models can sit at a higher upfront price point, and running-cost comparisons still matter because convenience does not automatically mean lower bills for every household. For example, the Hisense PureFlat Infinite RQ758N4SWSE is positioned at £1,199, while the Samsung Family Hub RS90F66BEFEU and RS90F66BETEU sit much higher at £2,549 and £2,749, so the feature set and price gap need to make sense together.
Who benefits most from frost free?
Busy families and larger households are the clearest match for frost free advice, because these homes usually care more about convenience, easier food storage and less maintenance than about the lowest possible purchase price. If your fridge freezer is opened often, or you keep a lot of frozen food in rotation, the reduced ice build-up can make day-to-day use feel more manageable. If you live alone or buy smaller quantities, you may still like frost free, but it becomes a value question rather than an obvious need.
How to compare frost free fridge freezers
On AO, do not stop at the frost free label: compare capacity, dimensions and clearance, energy rating, noise level and whether a dispenser or water system is plumbed or non-plumbed. Those checks matter more than decorative touches because an American fridge freezer can look appealing online and still be awkward if it is too tall, too wide or not suited to your kitchen layout. It also helps to compare the split between fridge and freezer space, especially if you are looking at a multi-door model such as the Hisense PureFlat Infinite RQ758N4SWSE versus a Family Hub style Samsung.
What the research and product examples suggest
The clearest takeaway is that frost free is best treated as a convenience feature first and a premium feature second. The comparison set here is deliberately narrow: Hisense PureFlat Infinite RQ758N4SWSE at £1,199, Samsung Family Hub RS90F66BEFEU at £2,549 and Samsung Family Hub RS90F66BETEU at £2,749, all with WiFi-connected positioning in the benchmark data. Visible shopper ratings are strong for this small set, with 4.9/5 for the Hisense and 4.8/5 for both Samsung models, but the live AO product pages were not fully accessible at check time, so verify current price, delivery, capacity and spec before buying.
How to turn the advice into a shortlist
This is a shortlist to compare, not a definitive ranking, because the evidence here is limited and the price spread is wide. The Hisense at £1,199 looks like the lower-priced reference point, while the two Samsung Family Hub models sit in a premium bracket at £2,549 and £2,749, so shoppers should decide whether smart features and plumbed convenience are worth the jump. Before you order, check the latest retailer price, warranty, delivery and installation details, plus the exact dimensions and whether the model is plumbed or non-plumbed, because those practical checks matter more than the frost free label on its own.
Electricals to use as comparison examples
Available 
Samsung Family Hub™ RS90F66BEFEU Plumbed Total No Frost American Fridge Freezer
from £2,549.
£2,549
Rated 4.8 / 5 from up to 4,318 reviews
Colours tracked: Black
Available 
Samsung Family Hub™ RS90F66BETEU Plumbed Total No Frost American Fridge Freezer
from £2,749.
£2,749
Rated 4.8 / 5 from up to 4,318 reviews
Colours tracked: Silver
Retailer details used
Last checked 2026-07-11. The source list below is included to help you check the details behind the comparison. Always confirm the latest price, delivery cost, stock status and product details with the retailer before buying.
- No Frost vs Frost Free fridge freezersfrost-free mechanism explanation
- BBC Good Food best fridge-freezersbuyer criteria and frost-free trade-off context
- AO Hisense RQ758N4SWSE American Fridge Freezershortlist product facts
- Hisense RQ758N4SWSE Cross Door Refrigeratormanufacturer capacity and no-frost specs
- Samsung RS90F66BEFEU Family Hub Fridge Freezershortlist product and smart feature context
Helpful next reads
Use these related electricals guides and reviews to turn the advice into a practical shortlist.
Firmness questions
Does frost free mean no maintenance at all?
No. Frost free reduces the need for regular manual defrosting, but you still need normal cleaning, basic care and routine checks like any other fridge freezer.
Is frost free the same as no frost?
In shopping terms, they are usually used to mean the same convenience idea: air circulation and automatic defrosting that help stop ice building up quickly.
What should I check before buying one on AO?
Check the exact dimensions, capacity, energy rating, noise level and installation type first, then confirm delivery, warranty and whether any plumbed water or ice feature suits your kitchen.