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BMW iX2 vs Smart #5
Selected trimeDrive20 M SportChange trim318 mi · 64.8 kWh · £41,815
At a glance
In this comparison, BMW iX2 leads on motorway range, running costs and city driving, while the Smart #5 leads on value for money, family practicality and charging speed.
Which should you choose?
Choose the BMW iX2 if...
- you do long motorway journeys - it has the best estimated real-world range at speed
- you want the lowest running costs - from just 1.7p per mile on off-peak electricity
- you need the best car for city driving and tight parking
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
How we reached the recommendation
Verdict
Our take
The BMW iX2 leads in the most categories, but each car here has its strengths.
ValueSmart
BMW
5.9
Smart
6.4
Motorway RangeBMW
BMW
5.9
Smart
2.7
FamilySmart
BMW
7.7
Smart
9
ChargingSmart
BMW
4.1
Smart
5
Cost Per MileBMW
BMW
9.1
Smart
1.6
City DrivingBMW
BMW
4.4
Smart
3.2
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.
Size Comparison
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BMW iX2
Smart #5
Length
BMW iX24,554mm-141mm
Smart #54,695mm
Width
BMW iX21,845mm-75mm
Smart #51,920mm
Height
BMW iX21,560mm-145mm
Smart #51,705mm
Space, size & parking
Parking & manoeuvring
Compare exterior dimensions to assess how each car fits UK parking spaces.
| Measure | BMW iX2eDrive20 M Sport | Smart #5Pro |
|---|---|---|
| Length | 4,554 mm | 4,695 mm |
| Width (mirrors folded) | 1,845 mm (better) | 1,920 mm |
| Width with mirrors out | Not available | 2,169 mm |
| Height | 1,560 mm | 1,705 mm |
| Turning circle | 11.9 m | Not available |
| Clearance in a standard bayA standard UK parking bay is 2,400 mm wide. | 555 mm spare (better) | 480 mm spare |
People & luggage
Compare seating, child-seat mounting points, boot space and towing capacity.
How each stacks up
Percentile ranks against UK EVs of the same body style.
BMW iX2
Not enough peers to make confident percentile claims.
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.
Full specifications
| Specification |  BMW iX2 eDrive20 M Sport |  Smart #5 Pro |
|---|---|---|
| Dimensions | ||
| Length | 4.55m | 4.70m+141mm |
| Width | 1.84m | 1.92m+75mm |
| Width (mirrors) | Not available | 2.17m |
| Height | 1.56m | 1.71m+145mm |
| Wheelbase | 2.69m | 2.90m+208mm |
| Ground Clearance | Not available | 190mm |
| Capacity | ||
| Boot (seats up) | 525L | 630L (better) |
| Boot (seats down) | 1400L | 1530L (better) |
| Frunk | Not available | 47L |
| Seats | 5 | 5 |
| Practicality | ||
| Turning Circle | 11.9m | Not available |
| Kerb Weight | 1,960kg (better) | 2,200kg |
| Towing Capacity | Not available | 1,600kg |
| Electric | ||
| Battery | 64.8kWh | 76kWh (better) |
| Range (WLTP) | 318 mi (better) | 288 mi |
| Max DC Charge | 130kW | 150kW (better) |
| Pricing | ||
| UK MSRP | £41,815 | £39,800 (better) |
| Price after EV grant | £38,065 (-£3,750) | £39,800 (not eligible) |
| Details | ||
| Body Style | SUV | SUV |
| Available | 2024+ | 2025+ |
* BMW iX2: 11 kW AC is standard; 22 kW AC was an option.
* BMW iX2: Current figure, after a March 2026 efficiency update. Earlier cars: eDrive20 272-283 miles WLTP, xDrive30 259-267 miles WLTP.
Range & charging
Range, charging & battery
Check official and estimated driving range alongside charging speeds, efficiency and battery technology.
| Measure | BMW iX2eDrive20 M Sport | Smart #5Pro |
|---|---|---|
| Official range (WLTP) | 318 miles (better) | 288 miles |
| Estimated motorway rangeEVcarsguide estimate at sustained motorway speed. | 265 miles (better) | 202 miles |
| 10-80% rapid charge time | 29 min (better) | 30 min |
| Max rapid charge rate | 130 kW | 150 kW (better) |
| Home AC charging | 11 kW | 11 kW |
| Energy consumption | Not available | 185 Wh/km |
| Usable battery capacity | 64.8 kWh | 76 kWh (better) |
| Battery chemistry | NMC | LFP |
| Battery architecture | 400V | 800V (better) |
| Heat pump | Not available | Not standard |
Driving & everyday use
Performance & drivetrain
Compare acceleration, power and drivetrain specifications for the selected trims.
What the critics say
See how UK motoring publications rate each car in their road tests.
BMW iX2
eDrive20 M Sport
Smart #5
Pro
Watch the reviews
Watch selected video reviews here, or visit each model page for the full collection.
BMW iX2
All 3 videos
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.
Safety & ownership confidence
Euro NCAP - BMW iX2 eDrive20 M Sport
Tested 2022
Adult Occupant85%
Child Occupant88%
Vulnerable Road Users76%
Safety Assist92%
Full result on euroncap.com (opens in new tab)
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)
Warranty
Check the published battery warranty cover for each selected trim.
Buying options
Get a quote
BMW iX2
Used on AutoTraderLease deals
Smart #5
Used on AutoTraderLease deals
Frequently asked questions
Is the BMW iX2 worth the extra £2,015 over the Smart #5?
The BMW iX2 costs £2,015 more than the Smart #5. For that premium it adds 30 miles more WLTP range. The Smart #5 is not just cheaper - it also offers 105 litres more boot space, 100 kW more power and a 1.7s quicker 0-62mph time. On EVcarsguide's combined category scores, the BMW iX2 comes out ahead overall.
Which is cheaper to own over 5 years, the BMW iX2 or the Smart #5?
The Smart #5 is £2,015 cheaper to buy. The BMW iX2 is cheaper to charge, roughly £136 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 Smart #5 comes out roughly £1,695 cheaper overall. These figures cover list price and home charging only - insurance, servicing, tyres and depreciation will move the real total.
What are the BMW iX2 and Smart #5 like on a long motorway trip?
EVcarsguide estimates a real-world motorway range of about 265 miles for the BMW iX2 and 202 miles for the Smart #5 - both below their WLTP figures, because sustained high speed is the hardest case for an EV. The BMW iX2 goes roughly 63 miles further between charging stops. Both rapid-charge to 80% in a similar time, around 29-30 minutes.
Which is easier to park and drive in town, the BMW iX2 or the Smart #5?
The BMW iX2 is the easier car for tight UK car parks: it is 75 mm narrower than the Smart #5. In a standard 2,400 mm bay that leaves about 555 mm of total clearance for the BMW iX2 and about 480 mm of total clearance for the Smart #5.
Which battery will hold up better as a used buy, the BMW iX2 or the Smart #5?
Over a 8-year ownership window EVcarsguide's degradation model projects roughly 84% battery health for the BMW iX2 and 90% for the Smart #5. 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 BMW iX2'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.
More BMW iX2 comparisons
More Smart #5 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 BMW iX2 and Smart #5 rank among the best family EVsWhere the BMW iX2 and Smart #5 rank among the best electric SUVsWhere the BMW iX2 and Smart #5 rank among the best motorway EVsWhere the BMW iX2 and Smart #5 rank among the best city EVsWhere the BMW iX2 and Smart #5 rank among the cheapest EVs to runWhere the BMW iX2 and Smart #5 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.
Data accuracy
Specs are sourced from manufacturer websites and manually reviewed. These figures were last verified .