In this comparison, Kia EV3 leads on motorway range, family practicality and charging speed, while the Smart #1 counters with the lowest price.
Choose the Kia EV3 if...
Our take
The Kia EV3 wins almost every category - it's the clear choice unless price is the deciding factor.
Too close to call
See the specification differences behind the verdict, with supporting figures for each advantage.
Compare the key specifications for your selected trims.
Size Comparison
Length
Width
Height
Compare exterior dimensions to assess how each car fits UK parking spaces.
| Measure | Kia EV3Standard Range 58.3kWh | Smart #1Pure |
|---|---|---|
| Length | 4,310 mm | 4,270 mm |
| Width (mirrors folded) | 1,850 mm | 1,822 mm (better) |
| Width with mirrors out | Not available | 2,025 mm |
| Height | 1,570 mm | 1,636 mm |
| Turning circle | 10.4 m (better) | 11 m |
| Clearance in a standard bayA standard UK parking bay is 2,400 mm wide. | 550 mm spare | 578 mm spare (better) |
Compare seating, child-seat mounting points, boot space and towing capacity.
Percentile ranks against UK EVs of the same body style.
Kia EV3
Smart #1
| Specification | Kia EV3 Standard Range 58.3kWh | Smart #1 Pure |
|---|---|---|
| Dimensions | ||
| Length | 4.31m | 4.27m-40mm |
| Width | 1.85m | 1.82m-28mm |
| Width (mirrors) | Not available | 2.02m |
| Height | 1.57m | 1.64m+66mm |
| Wheelbase | 2.68m | 2.75m+70mm |
| Capacity | ||
| Boot (seats up) | 460L (better) | 313L |
| Boot (seats down) | Not available | 976L |
| Frunk | 25L (better) | 15L |
| Seats | 5 | Not available |
| Practicality | ||
| Turning Circle | 10.4m (better) | 11m |
| Kerb Weight | 1,800kg | Not available |
| Electric | ||
| Battery | 58.3kWh (better) | 49kWh |
| Range (WLTP) | 270 mi (better) | 193 mi |
| Max DC Charge | 127kW | 130kW (better) |
| Pricing | ||
| UK MSRP | £33,055 | £29,960 (better) |
| Price after EV grant | £31,555 (-£1,500) | £29,960 (not eligible) |
| Details | ||
| Body Style | SUV | SUV |
| Available | 2024+ | 2023+ |
Check official and estimated driving range alongside charging speeds, efficiency and battery technology.
| Measure | Kia EV3Standard Range 58.3kWh | Smart #1Pure |
|---|---|---|
| Official range (WLTP) | 270 miles (better) | 193 miles |
| Estimated motorway rangeEVcarsguide estimate at sustained motorway speed. | 193 miles (better) | 133 miles |
| 10-80% rapid charge time | 29 min (better) | 30 min |
| Max rapid charge rate | 127 kW | 130 kW (better) |
| Home AC charging | 11 kW (better) | 7.4 kW |
| Energy consumption | 149 Wh/km (better) | 181 Wh/km |
| Usable battery capacity | 58.3 kWh (better) | 49 kWh |
| Battery chemistry | NCMA | LFP |
Compare acceleration, power and drivetrain specifications for the selected trims.
See how UK motoring publications rate each car in their road tests.

Kia EV3
Standard Range 58.3kWh
8.5/10
average across 5 reviews

Smart #1
Pure
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.
Current pricing and recent used-market behaviour.
Used prices are indicative figures gathered from independent UK dealer listings and change frequently.
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.
Tested 2025
Tested 2022
Check the published battery warranty cover for each selected trim.
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 infotainment & software. Worth checking on a test drive whichever you choose.

Kia EV3
Standard Range 58.3kWh

Smart #1
Pure
Get a quote
Kia EV3
Smart #1
Active inventory from independent UK dealers.
Kia EV3
No active listings.
Smart #1
The Kia EV3 costs £3,095 more than the Smart #1. For that premium it adds 77 miles more WLTP range, 147 litres more boot space and lower energy use, 149 versus 181 Wh/km. The Smart #1 is not just cheaper - it also offers 50 kW more power. On EVcarsguide's combined category scores, the Kia EV3 comes out ahead overall.
The Smart #1 is £3,095 cheaper to buy. The Kia EV3 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 £2,895 cheaper overall. These figures cover list price and home charging only - insurance, servicing, tyres and depreciation will move the real total.
EVcarsguide estimates a real-world motorway range of about 193 miles for the Kia EV3 and 133 miles for the Smart #1 - both below their WLTP figures, because sustained high speed is the hardest case for an EV. The Kia EV3 goes roughly 60 miles further between charging stops. Both rapid-charge to 80% in a similar time, around 29-30 minutes.
The two are within 28 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 550 mm of total clearance for the Kia EV3. The Kia EV3 also turns in a 0.6 m tighter circle, which helps with U-turns and multi-storey ramps.
Over a 8-year ownership window EVcarsguide's degradation model projects roughly 89% battery health for the Kia EV3 and 90% for the Smart #1. That is close enough that capacity loss should not decide between them. The Smart #1's LFP-type pack tolerates daily 100% charging, while the Kia EV3's NMC-type pack lasts longest kept to about 80% for everyday use. Both batteries carry a 8-year manufacturer warranty.
Visit the full model pages for owner feedback, expert reviews, used prices and battery-health information.
Compare similarly sized and priced electric cars before finalising your shortlist.
More Kia EV3 comparisons
More Smart #1 comparisons
EVcarsguide scores every verified EV on price, range, family use and running costs. Here is where this pair appears.
Explore buying and ownership guides to help you choose between these electric cars.
GuideA used Kia EV3 buyer’s guide: Standard and Long Range explained, the instrument-cluster recall, the 7-year warranty left, real-world range, what owners report, what to pay against a new one with the grant, and a printable checklist.
GuideA 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.
Specs are sourced from manufacturer websites and manually reviewed. These figures were last verified .