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Smart #5 vs Toyota bZ4X
Selected trimIcon FWD 57.7kWhChange trim276 mi · 57.7 kWh · £39,995
At a glance
In this comparison, Smart #5 leads on value for money, family practicality and charging speed, while the Toyota bZ4X leads on motorway range, running costs and city driving.
Which should you choose?
Choose the Smart #5 if...
- you want the most for your money - best overall spec per pound
- you have a family - it has the best combination of boot space, safety, and rear legroom
- you need the fastest charging of these options
Choose the Toyota bZ4X if...
- you do long motorway journeys - it has the best estimated real-world range at speed
- you want the lowest running costs - from just 1.8p per mile on off-peak electricity
- you need the best car for city driving and tight parking
How we reached the recommendation
Verdict
Our take
The Toyota bZ4X leads in the most categories, but each car here has its strengths.
ValueSmart
Smart
6.4
Toyota
5.5
Motorway RangeToyota
Smart
2.7
Toyota
4.9
FamilySmart
Smart
9
Toyota
6.9
ChargingSmart
Smart
5
Toyota
4.4
Cost Per MileToyota
Smart
1.6
Toyota
8.8
City DrivingToyota
Smart
3.2
Toyota
4.2
What each car does better
See the specification differences behind the verdict, with supporting figures for each advantage.
Smart #5
Pro
- 178 litres more boot space
- 125 kW more power
- 1.7s quicker 0-62 mph
- 850 kg more towing capacity
Key specifications
Compare the key specifications for your selected trims.
| Measure | Smart #5Pro | Toyota bZ4XIcon FWD 57.7kWh |
|---|---|---|
| Price | £39,800 (better) | £39,995 |
| Official range | 288 miles (better) | 276 miles |
| Boot space | 630 L (better) | 452 L |
| 10-80% rapid charge | 30 min | 30 min |
| 0-62 mph | 6.9 sec (better) | 8.6 sec |
Size Comparison
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Smart #5
Toyota bZ4X
Length
Smart #54,695mm
Toyota bZ4X4,690mm-5mm
Width
Smart #51,920mm
Toyota bZ4X1,860mm-60mm
Height
Smart #51,705mm
Toyota bZ4X1,650mm-55mm
Space, size & parking
Parking & manoeuvring
Compare exterior dimensions to assess how each car fits UK parking spaces.
| Measure | Smart #5Pro | Toyota bZ4XIcon FWD 57.7kWh |
|---|---|---|
| Length | 4,695 mm | 4,690 mm |
| Width (mirrors folded) | 1,920 mm | 1,860 mm (better) |
| Width with mirrors out | 2,169 mm | Not available |
| Height | 1,705 mm | 1,650 mm |
| Turning circle | Not available | 11.2 m |
| Clearance in a standard bayA standard UK parking bay is 2,400 mm wide. | 480 mm spare | 540 mm spare (better) |
People & luggage
Compare seating, child-seat mounting points, boot space and towing capacity.
| Measure | Smart #5Pro | Toyota bZ4XIcon FWD 57.7kWh |
|---|---|---|
| Seats | 5 | 5 |
| Boot space (seats up) | 630 L (better) | 452 L |
| Boot space (seats down) | 1530 L | Not available |
| Frunk | 47 L | Not available |
| Towing capacity (braked) | 1,600 kg (better) | 750 kg |
How each stacks up
Percentile ranks against UK EVs of the same body style.
Smart #5
- Boot space of 630 L is bigger than 90% of SUVs we track.
- One of 33 of 232 UK EVs in our catalogue with V2L (vehicle-to-load) support.
Toyota bZ4X
Not enough peers to make confident percentile claims.
Full specifications
| Specification |  Smart #5 Pro |  Toyota bZ4X Icon FWD 57.7kWh |
|---|---|---|
| Dimensions | ||
| Length | 4.70m | 4.69m-5mm |
| Width | 1.92m | 1.86m-60mm |
| Width (mirrors) | 2.17m | Not available |
| Height | 1.71m | 1.65m-55mm |
| Wheelbase | 2.90m | 2.85m-50mm |
| Ground Clearance | 190mm | 177mm-13mm |
| Capacity | ||
| Boot (seats up) | 630L (better) | 452L |
| Boot (seats down) | 1530L | Not available |
| Frunk | 47L | Not available |
| Seats | 5 | 5 |
| Practicality | ||
| Turning Circle | Not available | 11.2m |
| Kerb Weight | 2,200kg | 1,870kg (better) |
| Towing Capacity | 1,600kg (better) | 750kg |
| Electric | ||
| Battery | 76kWh (better) | 57.7kWh |
| Range (WLTP) | 288 mi (better) | 276 mi |
| Max DC Charge | 150kW | 150kW |
| Pricing | ||
| UK MSRP | £39,800 (better) | £39,995 |
| Details | ||
| Body Style | SUV | SUV |
| Available | 2025+ | 2026+ |
Range & charging
Range, charging & battery
Check official and estimated driving range alongside charging speeds, efficiency and battery technology.
| Measure | Smart #5Pro | Toyota bZ4XIcon FWD 57.7kWh |
|---|---|---|
| Official range (WLTP) | 288 miles (better) | 276 miles |
| Estimated motorway rangeEVcarsguide estimate at sustained motorway speed. | 202 miles | 230 miles (better) |
| 10-80% rapid charge time | 30 min | 30 min |
| Max rapid charge rate | 150 kW | 150 kW |
| Home AC charging | 11 kW | 11 kW |
| Energy consumption | 185 Wh/km | Not available |
| Usable battery capacity | 76 kWh (better) | 54 kWh |
| Battery chemistry | LFP | NMC |
| Battery architecture | 800V | Not available |
| Heat pump | Not standard | Not available |
Driving & everyday use
Performance & drivetrain
Compare acceleration, power and drivetrain specifications for the selected trims.
| Measure | Smart #5Pro | Toyota bZ4XIcon FWD 57.7kWh |
|---|---|---|
| 0-62 mph | 6.9 sec (better) | 8.6 sec |
| Power | 250 kW (better) | 125 kW |
| Torque | 373 Nm (better) | 269 Nm |
| Drivetrain | RWD | FWD |
What the critics say
See how UK motoring publications rate each car in their road tests.
Smart #5
Pro
Toyota bZ4X
Icon FWD 57.7kWh
Watch the reviews
Watch selected video reviews here, or visit each model page for the full collection.
Reviews and videos discuss each model overall; the specifications above apply to your selected trims.
Prices & deals
Calculate your real costs
For a useful running-cost comparison, factor in your mileage, charging access and current petrol or diesel car alongside the EV estimate.
Compare with petrol or diesel
Compare purchase price, energy, road tax and maintenance with a petrol or diesel alternative.
Calculate company-car tax
Work out monthly Benefit-in-Kind using current and future HMRC rates.
Cost per mile
Compare EV charging costs per mile with petrol and diesel using your charging options.
Check a lease quote
Assess the effective monthly cost alongside the list price and expected depreciation.
Safety & ownership confidence
Euro NCAP - Smart #5 Pro
Tested 2025
Adult Occupant88%
Child Occupant93%
Vulnerable Road Users84%
Safety Assist92%
Full result on euroncap.com (opens in new tab)
Euro NCAP - Toyota bZ4X Icon FWD 57.7kWh
Tested 2025
Adult Occupant88%
Child Occupant85%
Vulnerable Road Users80%
Safety Assist79%
Full result on euroncap.com (opens in new tab)
Warranty
Check the published battery warranty cover for each selected trim.
| Measure | Smart #5Pro | Toyota bZ4XIcon FWD 57.7kWh |
|---|---|---|
| Battery warranty | 8 years | 8 years |
| Battery warranty distance | Not available | 160,934 km |
What owners say
Aggregated from UK owner forums and communities - the things you only learn after living with the car.
Shared watch-outs for both cars
Owners of every car here flag real-world range. Worth checking on a test drive whichever you choose.
Smart #5
Pro
Owners love
- Exceptional interior space with comfortable rear legroom, reclining seats, and 630 litres of boot space
- Outstanding acceleration (3.8 seconds 0-62mph) and impressive 800V fast charging (10-80% in 18 minutes at optimal conditions)
- Advanced infotainment with three screens, superb conversational voice control, and premium materials (Alcantara, vegan leather)
Watch out for
- High energy consumption significantly impacts real-world range compared to competitors despite 335-mile WLTP rating
- Design is polarizing and divisive; frequently compared unfavorably to the Nissan Cube with questionable styling details
- 335-mile WLTP range underwhelming for a 100kWh battery and not class-leading compared to rivals
Owner tips
- Test drive the rear-wheel drive base models which offer better steering feel, more dynamic handling, and additional frunk space compared to all-wheel drive variants
- Visit dealerships in person to confirm driver's seat comfort if over 6 feet tall and test voice assistant behavior to ensure it suits your driving style
Toyota bZ4X
Icon FWD 57.7kWh
Owners love
- Strong sales performance in key markets (second-best selling EV in UK early 2024, #1 in Norway and Denmark) with excellent lease appeal
- Spacious, comfortable interior with excellent rear legroom and well-designed cabin features like storage and entertainment systems
- Responsive driving dynamics with good handling that belies its weight, plus car-like agility for an SUV
Watch out for
- Real-world range significantly underperforms WLTP claims (150-230 miles on motorways versus 315+ claimed; drops further with air conditioning)
- Poor efficiency compared to competitors; atrocious efficiency-to-battery-size ratio relative to rivals like Ioniq 5 and Model Y
- Rapid charging severely limited by thermal management issues requiring only 3-4 DC charges per 24 hours, and performance degrades significantly in cold weather
Owner tips
- Look for aggressive lease deals and consider salary sacrifice schemes, which offer better value than outright purchase; aim for 24-month terms where pricing appears cheaper
- Install a home charging unit (like Easee One) and plan charging around home charger for daily use; limit long trips to 3-4 rapid charges per 24 hours with proper spacing
Buying options
Get a quote
Smart #5
Used on AutoTraderLease deals
Toyota bZ4X
Used on AutoTraderLease deals
Frequently asked questions
Which is cheaper to own over 5 years, the Smart #5 or the Toyota bZ4X?
The Smart #5 is £195 cheaper to buy. The Toyota bZ4X is cheaper to charge, roughly £144 a year versus £200 for the Smart #5, at 8,000 miles on an off-peak home tariff. Add 5 years of charging and the two land within £85 of each other - effectively the same to own. These figures cover list price and home charging only - insurance, servicing, tyres and depreciation will move the real total.
What are the Smart #5 and Toyota bZ4X like on a long motorway trip?
EVcarsguide estimates a real-world motorway range of about 202 miles for the Smart #5 and 230 miles for the Toyota bZ4X - both below their WLTP figures, because sustained high speed is the hardest case for an EV. The Toyota bZ4X goes roughly 28 miles further between charging stops. Both rapid-charge to 80% in a similar time, around 30-30 minutes.
Which is easier to park and drive in town, the Smart #5 or the Toyota bZ4X?
The Toyota bZ4X is the easier car for tight UK car parks: it is 60 mm narrower than the Smart #5. In a standard 2,400 mm bay that leaves about 540 mm of total clearance for the Toyota bZ4X and about 480 mm of total clearance for the Smart #5.
Which battery will hold up better as a used buy, the Smart #5 or the Toyota bZ4X?
Over a 8-year ownership window EVcarsguide's degradation model projects roughly 90% battery health for the Smart #5 and 84% for the Toyota bZ4X. That gives the Smart #5 a modest edge in retained real-world range. The Smart #5's LFP-type pack tolerates daily 100% charging, while the Toyota bZ4X's NMC-type pack lasts longest kept to about 80% for everyday use. Both batteries carry a 8-year manufacturer warranty.
Go deeper on each car
Visit the full model pages for owner feedback, expert reviews, used prices and battery-health information.
Compare against other rivals
Compare similarly sized and priced electric cars before finalising your shortlist.
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See both cars in our rankings
EVcarsguide scores every verified EV on price, range, family use and running costs. Here is where this pair appears.
Where the Smart #5 and Toyota bZ4X rank among the best family EVsWhere the Smart #5 and Toyota bZ4X rank among EVs under £40,000Where the Smart #5 and Toyota bZ4X rank among the best electric SUVsWhere the Smart #5 and Toyota bZ4X rank among the best motorway EVsWhere the Smart #5 and Toyota bZ4X rank among the best city EVsWhere the Smart #5 and Toyota bZ4X rank among the cheapest EVs to run
If neither is quite right
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Further reading
Explore buying and ownership guides to help you choose between these electric cars.
Data accuracy
Specs are sourced from manufacturer websites and manually reviewed. These figures were last verified .