Available 
Hisense PureFlat Infinite RQ758N4SASE Total No Frost Multi-door American Fridge Freezer
from £899.
£899
Rated 4.9 / 5 from up to 3,271 reviews
Colours tracked: Stainless Steel
Buying guide
Best electricals for lower running costs
A cautious AO shortlist for lower-running-cost electricals. Compare like-for-like within each product type, then check fit, capacity, energy cues and the live AO product page before you buy.
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Last verified: 2026-08-13
Quick verdict
This is a cautious comparison shortlist, not a final winner list. The current AO selection mixes fridge-freezers and an air fryer, so the safest way to use it is to compare within each product type rather than across the whole page. The visible prices run from £229 to £1,199, and the review averages are around 4.9 with counts in the thousands, which is useful for confidence but does not prove lower running costs. Always confirm stock, delivery, dimensions, energy details and the exact variant on the live AO page before you buy.
Top picks to compare
Start with Hisense PureFlat Infinite RQ758N4SASE Total No Frost Multi-door American Fridge Freezer (£899), Hisense PureFlat Infinite RQ758N4SWSE Total No Frost Multi-door American Fridge Freezer (£1,199), Hisense PureFlat RQ758N4SAFE Total No Frost Multi-door American Fridge Freezer (£999) because they give you a focused set of current retailer options to compare. The visible price range is £229-£1,199, so check whether the extra spend buys a useful specification difference rather than only a different brand or finish. The shortlist includes Hisense, Ninja, which helps you compare familiar brands against specification, delivery and value.
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
Available 
Hisense PureFlat RQ758N4SAFE Total No Frost Multi-door American Fridge Freezer
from £999.
£999
Rated 4.9 / 5 from up to 3,271 reviews
Colours tracked: Black
Available 
Ninja Foodi Max Dual Zone AF400UK Air Fryer
from £229.
£229
Rated 4.9 / 5 from up to 7,019 reviews
Colours tracked: Black
At-a-glance comparison
Use this table to scan the shortlist quickly before opening individual product pages. It covers Fridge Freezers, Air Fryers, so compare like-for-like where possible before deciding which electrical best fits your home, space, budget and the features you will actually use. Key spec differences include WiFi connected; Key spec differences can matter as much as headline price when you are matching a product to a specific need.
| Product | Type | Key spec | Colours | From |
|---|---|---|---|---|
| Hisense PureFlat Infinite RQ758N4SASE Total No Frost Multi-door American Fridge Freezer | Fridge Freezers | Check retailer | Stainless Steel | £899 |
| Hisense PureFlat Infinite RQ758N4SWSE Total No Frost Multi-door American Fridge Freezer | Fridge Freezers | WiFi connected | Stainless Steel | £1,199 |
| Hisense PureFlat RQ758N4SAFE Total No Frost Multi-door American Fridge Freezer | Fridge Freezers | Check retailer | Black | £999 |
| Ninja Foodi Max Dual Zone AF400UK Air Fryer | Air Fryers | Check retailer | Black | £229 |
What AO says to look for
AO’s own guidance says a higher energy-efficiency rating can mean lower energy bills, and for washing machines it suggests looking for C or above where relevant. That washing-machine advice does not map directly to this shortlist, but the principle still matters: use the energy label, the stated eco behaviour and the appliance’s own specifications to judge running costs rather than relying on price alone. AO also says eco wash programmes generally use lower temperatures and can reduce energy use, although they may take longer to finish, and it highlights sensor-controlled wash and inverter motors as useful energy-saving features. For fridge-freezers like the Hisense PureFlat range, AO’s efficiency advice points shoppers towards the rating, capacity, dimensions and any clearly stated energy-saving features on the live product page.
Buyer trade-offs to compare
The main trade-off is whether a higher price actually buys a useful gain. In this shortlist, prices run from £229 for the Ninja Foodi Max Dual Zone AF400UK Air Fryer to £1,199 for the WiFi connected Hisense PureFlat Infinite RQ758N4SWSE, so it is worth checking whether the extra cost buys capacity, fit or a feature set you will genuinely use. Review volume can support confidence in popularity, but it does not measure energy use or annual bills. Smart features such as WiFi are best treated as convenience unless the retailer page clearly links them to efficiency. Before you choose, verify stock, delivery terms and any warranty or installation detail on the current AO page.
Why this shortlist is useful
This shortlist brings together four current AO options from two brands across two product types, which makes it a practical starting point for comparing large-capacity fridge-freezers and a compact cooking option in one place. It is not a definitive ranking, and the mixed product types mean shoppers should compare only like-for-like options where possible. For example, the three Hisense fridge-freezers — RQ758N4SASE at £899, RQ758N4SAFE at £999 and RQ758N4SWSE at £1,199 — can be checked against one another for finish, fit and feature differences, while the Ninja AF400UK should be assessed on air fryer capacity and countertop space instead. Treat it as a careful starting point rather than a complete market view.
What the shortlist shows
The visible shortlist runs from £229 to £1,199, with Hisense and Ninja represented across the appliance options and review averages around 4.9 across the set. Review counts are strong too, running into the thousands, which can help with confidence in popularity and ownership experience. That said, these figures are comparison signals, not independent lab evidence, so they should help you narrow choices rather than prove lower running costs. Always verify the live product page before buying.
How to choose between these electricals
Start with the product type that matches the job in hand, then check fit before features. For fridge-freezers like the Hisense PureFlat Infinite RQ758N4SASE and RQ758N4SWSE, compare capacity, width, height, door layout and whether Total No Frost suits your kitchen and storage habits. For the Ninja Foodi Max Dual Zone AF400UK Air Fryer, look at capacity, countertop space and whether the dual-zone layout fits how you cook. Across both categories, use the energy label and any clearly stated eco or efficiency features as part of the decision, but check the exact retailer specifications before buying because the live page is the final reference.
Value buying notes
Value is not the cheapest price on the page; it is the best balance of fit, efficiency cues, confidence and live cost. A higher-priced model only looks worthwhile if it gives you a meaningful advantage over the lower-priced options, such as a better fit, a more suitable capacity or a feature set that matches how you actually use the appliance. For example, the Hisense PureFlat Infinite RQ758N4SASE is shown at £899, while the WiFi connected Hisense PureFlat Infinite RQ758N4SWSE is £1,199, so the decision may come down to whether the smart feature is genuinely useful. If the higher price only changes the finish or adds convenience, the simpler option may be better value. Before paying, verify stock, delivery options and warranty terms, because live retailer details can change and some specifications were not fully available during checking.
Retailer details used
Last checked 2026-08-13. 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.
- Energy Saving Trust top energy-consuming appliancesrunning-cost buyer criteria
- Energy Saving Trust home appliance adviceenergy-label and lifecycle advice
- Hisense RQ758N4SASE official specificationofficial energy and capacity specs
- Good Food Ninja AF400UK reviewindependent air-fryer review
- AO product listingHisense PureFlat Infinite RQ758N4SASE Total No Frost Multi-door American Fridge Freezer shortlist context
- AO product listingHisense PureFlat Infinite RQ758N4SWSE Total No Frost Multi-door American Fridge Freezer shortlist context
Helpful next reads
Keep comparing with related reviews and buying guides before checking the latest retailer prices.
Buying questions
How do I compare lower-running-cost electricals without overpaying for features I won’t use?
Start with fit first: product type, dimensions, installation needs and the household size the appliance is meant to serve. Then compare the energy label and any clearly stated efficiency features on the live AO page. If a model adds smart features, only pay extra if that convenience matters to you or the page shows a real efficiency benefit.
Are strong review scores enough to prove lower running costs?
No. Strong ratings and large review counts can help you judge popularity and owner satisfaction, but they do not verify annual energy use. To compare running costs, check the energy label, the programme information and any stated efficiency technology on the retailer page before deciding.
What efficiency features should I look for on AO washing machines and fridge-freezers?
For washing machines, AO’s guidance points to C or above on the energy label where relevant, plus eco wash programmes, sensor-controlled wash and inverter motors. For fridge-freezers, look for the energy rating, capacity, dimensions and any clearly stated energy-saving or frost-free features. Check the live retailer page so you can match the feature set to the exact model and price.
Why might a more expensive model still be the better value?
A higher price can still be sensible if it buys a better energy label, a more suitable capacity or a feature set that matches how you actually use the appliance. If the higher price only changes the finish or adds a convenience feature, the cheaper option may be better value. The key is whether the extra spend gives you a real benefit for your household.
What should I verify on the live retailer page before buying?
Check the latest price, stock and delivery options, plus the exact dimensions, energy details and variant options. It is especially important here because the shortlist is only a comparison guide and not a final verdict. Make sure the extra cost matches a real specification advantage rather than a small cosmetic difference.