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BMW iX vs Mercedes-Benz EQS
Selected trimxDrive60 M SportChange trim426 mi · 94.8 kWh · £78,405
Selected trim400Change trim490 mi · Not available · £91,765
At a glance
In this comparison, BMW iX leads on motorway range, charging speed and running costs, while the Mercedes-Benz EQS leads on value for money.
Which should you choose?
Choose the BMW iX if...
- you do long motorway journeys - it has the best estimated real-world range at speed
- you need the fastest charging of these options
- you want the lowest running costs - from just 1.9p per mile on off-peak electricity
Choose the Mercedes-Benz EQS if...
- you want the most for your money - best overall spec per pound
How we reached the recommendation
Verdict
Our take
The BMW iX leads in the most categories, but each car here has its strengths.
ValueMercedes-Benz
BMW
5.4
Mercedes-Benz
7.6
Motorway RangeBMW
BMW
8
Mercedes-Benz
7.1
Family
BMW
7.8
Mercedes-Benz
8.1
Too close to call
ChargingBMW
BMW
4.9
Mercedes-Benz
3.1
Cost Per MileBMW
BMW
7.6
Mercedes-Benz
0
What each car does better
See the specification differences behind the verdict, with supporting figures for each advantage.
Mercedes-Benz EQS
400
- 64 miles more WLTP range
- 110 litres more boot space
- 1.9 m tighter turning circle
- 2 more years of battery warranty
Key specifications
Compare the key specifications for your selected trims.
| Measure | BMW iXxDrive60 M Sport | Mercedes-Benz EQS400 |
|---|---|---|
| Price | £78,405 (better) | £91,765 |
| Official range | 426 miles | 490 miles (better) |
| Boot space | 500 L | 610 L (better) |
| 10-80% rapid charge | 35 min | 31 min (better) |
| 0-62 mph | 4.6 sec | 4.3 sec (better) |
Size Comparison
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Align by:
BMW iX
Mercedes-Benz EQS
Length
BMW iX4,965mm-251mm
Mercedes-Benz EQS5,216mm
Width
BMW iX1,970mm
Mercedes-Benz EQS1,926mm-44mm
Height
BMW iX1,695mm
Mercedes-Benz EQS1,512mm-183mm
Space, size & parking
Parking & manoeuvring
Compare exterior dimensions to assess how each car fits UK parking spaces.
| Measure | BMW iXxDrive60 M Sport | Mercedes-Benz EQS400 |
|---|---|---|
| Length | 4,965 mm | 5,216 mm |
| Width (mirrors folded) | 1,970 mm | 1,926 mm (better) |
| Width with mirrors out | Not available | 2,135 mm |
| Height | 1,695 mm | 1,512 mm |
| Turning circle | 12.8 m | 10.9 m (better) |
| Clearance in a standard bayA standard UK parking bay is 2,400 mm wide. | 430 mm spare | 474 mm spare (better) |
People & luggage
Compare seating, child-seat mounting points, boot space and towing capacity.
| Measure | BMW iXxDrive60 M Sport | Mercedes-Benz EQS400 |
|---|---|---|
| Seats | 5 | 5 |
| ISOFIX child-seat points | Not available | 2 |
| Boot space (seats up) | 500 L | 610 L (better) |
| Boot space (seats down) | 1750 L | 1770 L (better) |
| Towing capacity (braked) | 2,500 kg (better) | 750 kg |
How each stacks up
Percentile ranks against UK EVs of the same body style.
BMW iX
- 426 mile WLTP range, longer than 100% of SUVs we track.
- At 4,965 mm, longer than 90% of SUVs we track.
- Braked towing capacity of 2,500 kg, a stronger tow rating than 95% of SUVs we track.
Mercedes-Benz EQS
- 3rd-largest boot among saloon EVs in our catalogue at 610 L.
- At 5,216 mm, longer than 95% of saloon EVs we track.
- 490 mile WLTP range, longer than 100% of saloon EVs we track.
Full specifications
| Specification |  BMW iX xDrive60 M Sport |  Mercedes-Benz EQS 400 |
|---|---|---|
| Dimensions | ||
| Length | 4.96m | 5.22m+251mm |
| Width | 1.97m | 1.93m-44mm |
| Width (mirrors) | Not available | 2.13m |
| Height | 1.70m | 1.51m-183mm |
| Wheelbase | 3.00m | 3.21m+210mm |
| Ground Clearance | Not available | 143mm |
| Capacity | ||
| Boot (seats up) | 500L | 610L (better) |
| Boot (seats down) | 1750L | 1770L (better) |
| Seats | 5 | 5 |
| Practicality | ||
| Turning Circle | 12.8m | 10.9m (better) |
| Kerb Weight | Not available | 2,660kg |
| Towing Capacity | 2,500kg (better) | 750kg |
| Electric | ||
| Battery | 94.8kWh | Not available |
| Range (WLTP) | 426 mi | 490 mi (better) |
| Max DC Charge | 195kW | Not available |
| Pricing | ||
| UK MSRP | £78,405 (better) | £91,765 |
| Details | ||
| Body Style | SUV | Saloon |
| Available | 2025+ | 2026+ |
Range & charging
Range, charging & battery
Check official and estimated driving range alongside charging speeds, efficiency and battery technology.
| Measure | BMW iXxDrive60 M Sport | Mercedes-Benz EQS400 |
|---|---|---|
| Official range (WLTP) | 426 miles | 490 miles (better) |
| Estimated motorway rangeEVcarsguide estimate at sustained motorway speed. | 355 miles | 392 miles (better) |
| 10-80% rapid charge time | 35 min | 31 min (better) |
| Max rapid charge rate | 195 kW | Not available |
| Home AC charging | Not available | 11 kW |
| Usable battery capacity | 94.8 kWh | Not available |
| Battery chemistry | NMC | NMC |
| Battery architecture | Not available | 400V |
| Heat pump | Not available | Not standard |
Driving & everyday use
Performance & drivetrain
Compare acceleration, power and drivetrain specifications for the selected trims.
| Measure | BMW iXxDrive60 M Sport | Mercedes-Benz EQS400 |
|---|---|---|
| 0-62 mph | 4.6 sec | 4.3 sec (better) |
| Power | 400 kW (better) | 270 kW |
| Torque | 765 Nm | 858 Nm (better) |
| Drivetrain | AWD | AWD |
What the critics say
See how UK motoring publications rate each car in their road tests. One car has more review coverage than the other - we show that rather than guessing.
BMW iX
xDrive60 M Sport
Mercedes-Benz EQS
400
No critic reviews gathered yet for this car.
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 - BMW iX xDrive60 M Sport
Tested 2025
Adult Occupant91%
Child Occupant87%
Vulnerable Road Users73%
Safety Assist81%
Full result on euroncap.com (opens in new tab)
Euro NCAP - Mercedes-Benz EQS 400
Tested 2021
Adult Occupant96%
Child Occupant91%
Vulnerable Road Users76%
Safety Assist80%
Warranty
Check the published battery warranty cover for each selected trim.
| Measure | BMW iXxDrive60 M Sport | Mercedes-Benz EQS400 |
|---|---|---|
| Battery warranty | 8 years | 10 years (better) |
| Battery warranty distance | 160,934 km | 250,000 km (better) |
Buying options
Get a quote
BMW iX
Used on AutoTraderLease deals
Mercedes-Benz EQS
Used on AutoTraderLease deals
Live used listings
Active inventory from independent UK dealers.
BMW iX
- £70,2622025Car360View
Mercedes-Benz EQS
No active listings.
Frequently asked questions
Is the Mercedes-Benz EQS worth the extra £13,360 over the BMW iX?
The Mercedes-Benz EQS costs £13,360 more than the BMW iX. For that premium it adds 64 miles more WLTP range and 110 litres more boot space. The BMW iX is not just cheaper - it also offers 130 kW more power. On EVcarsguide's combined category scores, the BMW iX comes out ahead overall.
What are the BMW iX and Mercedes-Benz EQS like on a long motorway trip?
EVcarsguide estimates a real-world motorway range of about 355 miles for the BMW iX and 392 miles for the Mercedes-Benz EQS - both below their WLTP figures, because sustained high speed is the hardest case for an EV. The Mercedes-Benz EQS goes roughly 37 miles further between charging stops. Both rapid-charge to 80% in a similar time, around 31-35 minutes.
Which is easier to park and drive in town, the BMW iX or the Mercedes-Benz EQS?
The Mercedes-Benz EQS is the easier car for tight UK car parks: it is 44 mm narrower than the BMW iX. In a standard 2,400 mm bay that leaves about 474 mm of total clearance for the Mercedes-Benz EQS and about 430 mm of total clearance for the BMW iX. The Mercedes-Benz EQS also turns in a 1.9 m tighter circle, which helps with U-turns and multi-storey ramps.
Which battery will hold up better as a used buy, the BMW iX or the Mercedes-Benz EQS?
Over a 8-year ownership window EVcarsguide's degradation model projects roughly 84% battery health for the BMW iX and 84% for the Mercedes-Benz EQS. That is close enough that capacity loss should not decide between them. Both use NMC-type cells, so for daily use keep the charge limit near 80% to slow degradation. The Mercedes-Benz EQS has the longer battery warranty at 10 years, versus 8 for the BMW iX.
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 iX comparisons
More Mercedes-Benz EQS 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 iX and Mercedes-Benz EQS rank among the best family EVsWhere the BMW iX and Mercedes-Benz EQS rank among long-range EVsWhere the BMW iX and Mercedes-Benz EQS rank among the best motorway EVsWhere the BMW iX and Mercedes-Benz EQS rank among the best city EVsWhere the BMW iX and Mercedes-Benz EQS rank among the cheapest EVs to runWhere the BMW iX and Mercedes-Benz EQS 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 .