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BYD Sealion 7 vs Mercedes-Benz EQA
YOUR SIDE-BY-SIDE COMPARISON
Choose or change your two cars
Search by make, model or trim, then choose one vehicle in each list.
Selected trimComfortChange trim300 mi · 82.5 kWh · £44,990
Selected trim250 · 2021-22Change trim263 mi · 66.5 kWh · £43,495
At a glance
In this comparison, BYD Sealion 7 leads on value for money, family practicality and charging speed, while the Mercedes-Benz EQA leads on motorway range, running costs and city driving.
Which should you choose?
Choose the BYD Sealion 7 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
- you need the fastest charging of these options
Choose the Mercedes-Benz EQA if...
- you do long motorway journeys - it has the best estimated real-world range at speed
- you want the lowest running costs - from just 2.2p 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 Mercedes-Benz EQA leads in the most categories, but each car here has its strengths.
ValueBYD
BYD
6
Mercedes-Benz
4.8
Motorway RangeMercedes-Benz
BYD
3.1
Mercedes-Benz
4.1
FamilyBYD
BYD
8
Mercedes-Benz
5.6
ChargingBYD
BYD
5.9
Mercedes-Benz
2.5
Cost Per MileMercedes-Benz
BYD
0.8
Mercedes-Benz
4.5
City DrivingMercedes-Benz
BYD
2.2
Mercedes-Benz
5.1
What each car does better
See the specification differences behind the verdict, with supporting figures for each advantage.
BYD Sealion 7
Comfort
- 37 miles more WLTP range
- 180 litres more boot space
- 50 kW faster rapid charging
- 90 kW more power
- 1.4s quicker 0-62 mph
Key specifications
Compare the key specifications for your selected trims.
| Measure | BYD Sealion 7Comfort | Mercedes-Benz EQA250 |
|---|---|---|
| Price | £44,990 | £43,495 (better) |
| Official range | 300 miles (better) | 263 miles |
| Boot space | 520 L (better) | 340 L |
| 10-80% rapid charge | 24 min (better) | 30 min |
| 0-62 mph | 6.7 sec (better) | 8.1 sec |
Size Comparison
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BYD Sealion 7
Mercedes-Benz EQA
Length
BYD Sealion 74,830mm
Mercedes-Benz EQA4,463mm-367mm
Width
BYD Sealion 71,925mm
Mercedes-Benz EQA1,834mm-91mm
Height
BYD Sealion 71,620mm
Mercedes-Benz EQA1,620mm
Space, size & parking
Parking & manoeuvring
Compare exterior dimensions to assess how each car fits UK parking spaces.
| Measure | BYD Sealion 7Comfort | Mercedes-Benz EQA250 |
|---|---|---|
| Length | 4,830 mm | 4,463 mm |
| Width (mirrors folded) | 1,925 mm | 1,834 mm (better) |
| Width with mirrors out | 2,189 mm | 2,020 mm (better) |
| Height | 1,620 mm | 1,620 mm |
| Turning circle | 11.7 m | 11.4 m (better) |
| Clearance in a standard bayA standard UK parking bay is 2,400 mm wide. | 475 mm spare | 566 mm spare (better) |
People & luggage
Compare seating, child-seat mounting points, boot space and towing capacity.
| Measure | BYD Sealion 7Comfort | Mercedes-Benz EQA250 |
|---|---|---|
| Seats | 5 | 5 |
| ISOFIX child-seat points | Not available | 2 |
| Boot space (seats up) | 520 L (better) | 340 L |
| Boot space (seats down) | 1789 L (better) | 1320 L |
| Frunk | 58 L | Not available |
| Towing capacity (braked) | 750 kg | 750 kg |
How each stacks up
Percentile ranks against UK EVs of the same body style.
BYD Sealion 7
- One of 33 of 232 UK EVs in our catalogue with V2L (vehicle-to-load) support.
- At 4,830 mm, longer than 80% of SUVs we track.
Mercedes-Benz EQA
Not enough peers to make confident percentile claims.
Full specifications
| Specification |  BYD Sealion 7 Comfort |  Mercedes-Benz EQA 250 |
|---|---|---|
| Dimensions | ||
| Length | 4.83m | 4.46m-367mm |
| Width | 1.93m | 1.83m-91mm |
| Width (mirrors) | 2.19m | 2.02m-169mm |
| Height | 1.62m | 1.62m |
| Wheelbase | 2.93m | 2.73m-201mm |
| Ground Clearance | 157mm | 168mm+11mm |
| Capacity | ||
| Boot (seats up) | 520L (better) | 340L |
| Boot (seats down) | 1789L (better) | 1320L |
| Frunk | 58L | Not available |
| Seats | 5 | 5 |
| Practicality | ||
| Turning Circle | 11.7m | 11.4m (better) |
| Kerb Weight | 2,225kg | 2,040kg (better) |
| Towing Capacity | 750kg | 750kg |
| Electric | ||
| Battery | 82.5kWh (better) | 66.5kWh |
| Range (WLTP) | 300 mi (better) | 263 mi |
| Max DC Charge | 150kW (better) | 100kW |
| Pricing | ||
| UK MSRP | £44,990 | £43,495 (better) |
| Details | ||
| Body Style | SUV | SUV |
| Available | 2025+ | 2021–2022 |
Range & charging
Range, charging & battery
Check official and estimated driving range alongside charging speeds, efficiency and battery technology.
| Measure | BYD Sealion 7Comfort | Mercedes-Benz EQA250 |
|---|---|---|
| Official range (WLTP) | 300 miles (better) | 263 miles |
| Estimated motorway rangeEVcarsguide estimate at sustained motorway speed. | 204 miles | 219 miles (better) |
| 10-80% rapid charge time | 24 min (better) | 30 min |
| Max rapid charge rate | 150 kW (better) | 100 kW |
| Home AC charging | 11 kW | 11 kW |
| Energy consumption | 199 Wh/km | Not available |
| Usable battery capacity | 82.5 kWh (better) | 66.5 kWh |
| Battery chemistry | LFP | NMC |
| Battery architecture | Not available | 400V |
| Heat pump | Standard | Standard |
Driving & everyday use
Performance & drivetrain
Compare acceleration, power and drivetrain specifications for the selected trims.
| Measure | BYD Sealion 7Comfort | Mercedes-Benz EQA250 |
|---|---|---|
| 0-62 mph | 6.7 sec (better) | 8.1 sec |
| Power | 230 kW (better) | 140 kW |
| Torque | 380 Nm (better) | 375 Nm |
| Drivetrain | RWD | FWD |
What the critics say
See how UK motoring publications rate each car in their road tests.
BYD Sealion 7
Comfort
6.6/10
average across 6 reviews
- Parkers3.9/5
- Auto Express3.5/5
- Electrifying.com7/10
Mercedes-Benz EQA
250
Watch the reviews
Watch selected video reviews here, or visit each model page for the full collection.
BYD Sealion 7
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 Sealion 7Comfort | Mercedes-Benz EQA250 |
|---|---|---|
| Used market price from | £30,211 | £16,278 |
| Average used price | £30,993 | £18,653 |
| Recent used-price trend | Down 10.1% over ~6 months | Down 1.2% 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 Sealion 7 Comfort
Tested 2025
Adult Occupant87%
Child Occupant93%
Vulnerable Road Users76%
Safety Assist79%
Full result on euroncap.com (opens in new tab)
Euro NCAP - Mercedes-Benz EQA 250
Tested 2019
Adult Occupant97%
Child Occupant90%
Vulnerable Road Users81%
Safety Assist75%
Full result on euroncap.com (opens in new tab)
Warranty
Check the published battery warranty cover for each selected trim.
| Measure | BYD Sealion 7Comfort | Mercedes-Benz EQA250 |
|---|---|---|
| Battery warranty | 8 years | 8 years |
| Battery warranty distance | 250,000 km (better) | 160,000 km |
Buying options
Get a quote
BYD Sealion 7
Used on AutoTraderLease deals
Mercedes-Benz EQA
Used on AutoTraderLease deals
Live used listings
Active inventory from independent UK dealers.
BYD Sealion 7
No active listings.
Mercedes-Benz EQA
- £16,6992022Car360View
Frequently asked questions
Is the BYD Sealion 7 worth the extra £1,495 over the Mercedes-Benz EQA?
The BYD Sealion 7 costs £1,495 more than the Mercedes-Benz EQA. For that premium it adds 37 miles more WLTP range, 50 kW faster peak rapid charging and 180 litres more boot space. On EVcarsguide's combined category scores, the Mercedes-Benz EQA comes out ahead overall.
Which is cheaper to own over 5 years, the BYD Sealion 7 or the Mercedes-Benz EQA?
The Mercedes-Benz EQA is £1,495 cheaper to buy. The Mercedes-Benz EQA is cheaper to charge, roughly £176 a year versus £216 for the BYD Sealion 7, at 8,000 miles on an off-peak home tariff. Add 5 years of charging and the Mercedes-Benz EQA 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 BYD Sealion 7 and Mercedes-Benz EQA like on a long motorway trip?
EVcarsguide estimates a real-world motorway range of about 204 miles for the BYD Sealion 7 and 219 miles for the Mercedes-Benz EQA - both below their WLTP figures, because sustained high speed is the hardest case for an EV. The Mercedes-Benz EQA goes roughly 16 miles further between charging stops. Both rapid-charge to 80% in a similar time, around 24-30 minutes.
Which is easier to park and drive in town, the BYD Sealion 7 or the Mercedes-Benz EQA?
The Mercedes-Benz EQA is the easier car for tight UK car parks: it is 91 mm narrower than the BYD Sealion 7. In a standard 2,400 mm bay that leaves about 566 mm of total clearance for the Mercedes-Benz EQA and about 475 mm of total clearance for the BYD Sealion 7.
Which battery will hold up better as a used buy, the BYD Sealion 7 or the Mercedes-Benz EQA?
Over a 8-year ownership window EVcarsguide's degradation model projects roughly 90% battery health for the BYD Sealion 7 and 84% for the Mercedes-Benz EQA. That gives the BYD Sealion 7 a modest edge in retained real-world range. The BYD Sealion 7's LFP-type pack tolerates daily 100% charging, while the Mercedes-Benz EQA'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 BYD Sealion 7 comparisons
More Mercedes-Benz EQA 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 Sealion 7 and Mercedes-Benz EQA rank among the best family EVsWhere the BYD Sealion 7 and Mercedes-Benz EQA rank among the best electric SUVsWhere the BYD Sealion 7 and Mercedes-Benz EQA rank among the best motorway EVsWhere the BYD Sealion 7 and Mercedes-Benz EQA rank among the best city EVsWhere the BYD Sealion 7 and Mercedes-Benz EQA rank among the cheapest EVs to runWhere the BYD Sealion 7 and Mercedes-Benz EQA rank among EVs with the biggest boots
Further reading
Explore buying and ownership guides to help you choose between these electric cars.
GuideBuying a Used BYD Sealion 7 (2025 on): Comfort, Design or Excellence & What to Pay
A used BYD Sealion 7 buyer’s guide: Comfort RWD, Design AWD and Excellence AWD, the steep depreciation, BYD’s 8-year battery warranty, charging speeds, real-world range, what owners report and a printable checklist.
GuideUsed Mercedes-Benz EQA buyer's guide (2021-on)
Buying a used Mercedes-Benz EQA: the 250, 250+ and 4MATIC versions, realistic range, the software recalls, what owners report and what to pay in 2026.
Data accuracy
Specs are sourced from manufacturer websites and manually reviewed. These figures were last verified .