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BYD ATTO 2 vs Smart #1
Selected trimBoostChange trim214 mi · 51.1 kWh · £30,850
At a glance
In this comparison, BYD ATTO 2 leads on motorway range, running costs and city driving, while the Smart #1 leads on value for money and family practicality.
Which should you choose?
Choose the BYD ATTO 2 if...
- you do long motorway journeys - it has the best estimated real-world range at speed
- you want the lowest running costs - from just 2p per mile on off-peak electricity
- you need the best car for city driving and tight parking
Choose the Smart #1 if...
- you want the most for your money - best overall spec per pound
- you need the most family-friendly option with good safety and space
How we reached the recommendation
Verdict
Our take
The BYD ATTO 2 leads in the most categories, but each car here has its strengths.
ValueSmart
BYD
4.6
Smart
5.9
Motorway RangeBYD
BYD
3.7
Smart
1.9
FamilySmart
BYD
2.3
Smart
5.4
Cost Per MileBYD
BYD
6.1
Smart
1.9
City DrivingBYD
BYD
7.3
Smart
6
What each car does better
See the specification differences behind the verdict, with supporting figures for each advantage.
Key specifications
Compare the key specifications for your selected trims.
| Measure | BYD ATTO 2Boost | Smart #1Pure |
|---|---|---|
| Price | £30,850 | £29,960 (better) |
| Official range | 214 miles (better) | 193 miles |
| Boot space | 400 L (better) | 313 L |
| 10-80% rapid charge | Not available | 30 min |
| 0-62 mph | 7.9 sec | Not available |
Size Comparison
View:
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BYD ATTO 2
Smart #1
Length
BYD ATTO 24,310mm
Smart #14,270mm-40mm
Width
BYD ATTO 21,830mm
Smart #11,822mm-8mm
Height
BYD ATTO 21,675mm
Smart #11,636mm-39mm
Space, size & parking
Parking & manoeuvring
Compare exterior dimensions to assess how each car fits UK parking spaces.
| Measure | BYD ATTO 2Boost | Smart #1Pure |
|---|---|---|
| Length | 4,310 mm | 4,270 mm |
| Width (mirrors folded) | 1,830 mm | 1,822 mm (better) |
| Width with mirrors out | 2,060 mm | 2,025 mm (better) |
| Height | 1,675 mm | 1,636 mm |
| Turning circle | 10.5 m (better) | 11 m |
| Clearance in a standard bayA standard UK parking bay is 2,400 mm wide. | 570 mm spare | 578 mm spare (better) |
People & luggage
Compare seating, child-seat mounting points, boot space and towing capacity.
| Measure | BYD ATTO 2Boost | Smart #1Pure |
|---|---|---|
| Seats | 5 | Not available |
| Boot space (seats up) | 400 L (better) | 313 L |
| Boot space (seats down) | 1340 L (better) | 976 L |
| Frunk | Not available | 15 L |
| Towing capacity (braked) | 750 kg (better) | 0 kg |
How each stacks up
Percentile ranks against UK EVs of the same body style.
BYD ATTO 2
- At 4,310 mm, shorter than 85% of SUVs in our UK catalogue.
- One of 32 of 232 UK EVs in our catalogue with V2L (vehicle-to-load) support.
- 10.5 m turning circle, tighter than 80% of SUVs in our database.
Smart #1
- At 4,270 mm, shorter than 90% of SUVs in our UK catalogue.
- One of 32 of 232 UK EVs in our catalogue with V2L (vehicle-to-load) support.
Full specifications
| Specification |  BYD ATTO 2 Boost |  Smart #1 Pure |
|---|---|---|
| Dimensions | ||
| Length | 4.31m | 4.27m-40mm |
| Width | 1.83m | 1.82m-8mm |
| Width (mirrors) | 2.06m | 2.02m-35mm |
| Height | 1.68m | 1.64m-39mm |
| Wheelbase | 2.62m | 2.75m+130mm |
| Ground Clearance | 165mm | Not available |
| Capacity | ||
| Boot (seats up) | 400L (better) | 313L |
| Boot (seats down) | 1340L (better) | 976L |
| Frunk | Not available | 15L |
| Seats | 5 | Not available |
| Practicality | ||
| Turning Circle | 10.5m (better) | 11m |
| Kerb Weight | 1,590kg | Not available |
| Towing Capacity | 750kg (better) | Not available |
| Electric | ||
| Battery | 51.1kWh (better) | 49kWh |
| Range (WLTP) | 214 mi (better) | 193 mi |
| Max DC Charge | 82kW | 130kW (better) |
| Pricing | ||
| UK MSRP | £30,850 | £29,960 (better) |
| Details | ||
| Body Style | SUV | SUV |
| Available | 2025+ | 2023+ |
* BYD ATTO 2: Euro NCAP crash-safety rating not published. The vehicle has been assessed under the Green NCAP sustainability programme only.
Range & charging
Range, charging & battery
Check official and estimated driving range alongside charging speeds, efficiency and battery technology.
| Measure | BYD ATTO 2Boost | Smart #1Pure |
|---|---|---|
| Official range (WLTP) | 214 miles (better) | 193 miles |
| Estimated motorway rangeEVcarsguide estimate at sustained motorway speed. | 178 miles (better) | 133 miles |
| 10-80% rapid charge time | Not available | 30 min |
| Max rapid charge rate | 82 kW | 130 kW (better) |
| Home AC charging | 11 kW (better) | 7.4 kW |
| Energy consumption | Not available | 181 Wh/km |
| Usable battery capacity | 45.1 kWh | 49 kWh (better) |
| Battery chemistry | LFP | LFP |
| Heat pump | Standard | Not available |
Driving & everyday use
Performance & drivetrain
Compare acceleration, power and drivetrain specifications for the selected trims.
| Measure | BYD ATTO 2Boost | Smart #1Pure |
|---|---|---|
| 0-62 mph | 7.9 sec | Not available |
| Power | 130 kW | 200 kW (better) |
| Torque | 290 Nm | Not available |
| Drivetrain | FWD | RWD |
What the critics say
See how UK motoring publications rate each car in their road tests.
BYD ATTO 2
Boost
Smart #1
Pure
Watch the reviews
Watch selected video reviews here, or visit each model page for the full collection.
BYD ATTO 2
All 3 videos
Reviews and videos discuss each model overall; the specifications above apply to your selected trims.
Prices & deals
New and used prices
Current pricing and recent used-market behaviour.
| Measure | BYD ATTO 2Boost | Smart #1Pure |
|---|---|---|
| Used market price from | £19,991 | £22,900 |
| Average used price | £20,662 | £23,771 |
| Saving vs RRP | £10,188 below new | £6,189 below new |
| Recent used-price trend | Down 5.9% over ~6 months | Up 4.3% over ~6 months |
Used prices are indicative figures gathered from independent UK dealer listings and change frequently.
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 - BYD ATTO 2 Boost
BYD ATTO 2 Boost
Euro NCAP crash-safety rating not published. The vehicle has been assessed under the Green NCAP sustainability programme only.
Euro NCAP - Smart #1 Pure
Tested 2022
Adult Occupant96%
Child Occupant89%
Vulnerable Road Users71%
Safety Assist88%
Full result on euroncap.com (opens in new tab)
Warranty
Check the published battery warranty cover for each selected trim.
| Measure | BYD ATTO 2Boost | Smart #1Pure |
|---|---|---|
| Battery warranty | 8 years | 8 years |
| Battery warranty distance | 250,000 km (better) | 201,168 km |
Buying options
Get a quote
BYD ATTO 2
Used on AutoTraderLease deals
Smart #1
Used on AutoTraderLease deals
Live used listings
Active inventory from independent UK dealers.
BYD ATTO 2
No active listings.
Smart #1
- £23,9992024Car360View
- £23,7712024Car360View
- £22,9002024EV ExpertsView
Frequently asked questions
Which is cheaper to own over 5 years, the BYD ATTO 2 or the Smart #1?
The Smart #1 is £890 cheaper to buy. The BYD ATTO 2 is cheaper to charge, roughly £160 a year versus £200 for the Smart #1, at 8,000 miles on an off-peak home tariff. Add 5 years of charging and the Smart #1 comes out roughly £690 cheaper overall. These figures cover list price and home charging only - insurance, servicing, tyres and depreciation will move the real total.
What are the BYD ATTO 2 and Smart #1 like on a long motorway trip?
EVcarsguide estimates a real-world motorway range of about 178 miles for the BYD ATTO 2 and 133 miles for the Smart #1 - both below their WLTP figures, because sustained high speed is the hardest case for an EV. The BYD ATTO 2 goes roughly 45 miles further between charging stops.
Which is easier to park and drive in town, the BYD ATTO 2 or the Smart #1?
The two are within 8 mm on width, so neither is meaningfully easier to thread into a tight space. In a standard 2,400 mm bay that leaves about 578 mm of total clearance for the Smart #1 and about 570 mm of total clearance for the BYD ATTO 2. The BYD ATTO 2 also turns in a 0.5 m tighter circle, which helps with U-turns and multi-storey ramps.
Which battery will hold up better as a used buy, the BYD ATTO 2 or the Smart #1?
Over a 8-year ownership window EVcarsguide's degradation model projects roughly 90% battery health for the BYD ATTO 2 and 90% for the Smart #1. That is close enough that capacity loss should not decide between them. Both use LFP-type cells, which are happy charged to 100% every day. 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.
More BYD ATTO 2 comparisons
More Smart #1 comparisons
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 BYD ATTO 2 and Smart #1 rank among EVs under £40,000Where the BYD ATTO 2 and Smart #1 rank among the best electric SUVsWhere the BYD ATTO 2 and Smart #1 rank among the best motorway EVsWhere the BYD ATTO 2 and Smart #1 rank among the best city EVsWhere the BYD ATTO 2 and Smart #1 rank among the cheapest EVs to runWhere the BYD ATTO 2 and Smart #1 rank among EVs with the biggest boots
If neither is quite right
Explore other verified electric cars that may better suit the priorities this pair does not meet.
Further reading
Explore buying and ownership guides to help you choose between these electric cars.
GuideBuying a Used BYD Atto 2 (2025 on): Boost vs Comfort & What to Pay
A used BYD Atto 2 buyer’s guide: the 51 kWh Boost and 64.8 kWh Comfort, why a discounted new Comfort can undercut a nearly new Boost, BYD’s 8-year battery warranty, real-world range and a printable checklist.
GuideBuying a Used Smart #1 (2023 on): Pro+, Premium or BRABUS & What to Pay
A used Smart #1 buyer’s guide: the 66 kWh Pro+, Premium and BRABUS and the later 49 kWh Pure and Pro, the seat belt recall, the short car warranty but 8-year battery cover, real-world range, what owners report and a printable checklist.
Data accuracy
Specs are sourced from manufacturer websites and manually reviewed. These figures were last verified .