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BYD Seal U vs smart #3 - Differences and prices compared
Compare performance (324 HP vs 428 HP), boot space and price (34300 £ vs 34700 £ ) at a glance. Find out which car is the better choice for you – BYD Seal U or smart #3?
Seal U
Costs and Efficiency:
Looking at overall running costs, both models reveal some interesting differences in everyday economy.
BYD Seal U has a minimal advantage in terms of price – it starts at 34300 £ , while the smart #3 costs 34700 £ . That’s a price difference of around 428 £.
In terms of energy consumption, the advantage goes to the BYD Seal U: with 12.10 kWh per 100 km, it’s clearly perceptible more efficient than the smart #3 with 16.30 kWh. That’s a difference of about 4.20 kWh.
As for electric range, the BYD Seal U performs barely noticeable better – achieving up to 500 km, about 45 km more than the smart #3.
#3
Engine and Performance:
Power, torque and acceleration are the classic benchmarks for car enthusiasts – and here, some clear differences start to show.
When it comes to engine power, the smart #3 has a clearly perceptible edge – offering 428 HP compared to 324 HP. That’s roughly 104 HP more horsepower.
In acceleration from 0 to 100 km/h, the smart #3 is decisively quicker – completing the sprint in 3.70 s, while the BYD Seal U takes 5.90 s. That’s about 2.20 s faster.
In terms of top speed, the smart #3 performs hardly perceptible better – reaching 180 km/h, while the BYD Seal U tops out at 175 km/h. The difference is around 5 km/h.
There’s also a difference in torque: smart #3 pulls slight stronger with 584 Nm compared to 550 Nm. That’s about 34 Nm difference.
Seal U
Space and Everyday Use:
Beyond pure performance, interior space and usability matter most in daily life. This is where you see which car is more practical and versatile.
Both vehicles offer seating for 5 people.
In curb weight, smart #3 is barely noticeable lighter – 1780 kg compared to 1940 kg. The difference is around 160 kg.
In terms of boot space, the BYD Seal U offers noticeable more room – 552 L compared to 370 L. That’s a difference of about 182 L.
In maximum load capacity, the BYD Seal U performs slightly better – up to 1440 L, which is about 280 L more than the smart #3.
When it comes to payload, smart #3 minimal takes the win – 450 kg compared to 410 kg. That’s a difference of about 40 kg.
Who wins the race in the data check?
The smart #3 is slightly ahead in the objective data comparison.
This result only shows which model scores more points on paper – not which of the two cars feels right for you.
BYD Seal U
smart #3
Costs and Consumption
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Engine and Performance
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Dimensions and Body
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from about £34,700
smart #3
BYD Seal U
4 (6 Reviews)
The BYD Seal U pairs a sleek fastback silhouette with a surprisingly roomy, tech-rich cabin, giving electric chic without the showroom pretension. It's a smart pick for buyers after confident handling, sensible practicality and standout value — all wrapped up with a cheeky grin when you put your foot down.
details
smart #3
5 (1 Reviews)
The Smart #3 turns the brand's cheeky city-car attitude into a grown-up compact SUV, pairing sleek styling with a surprisingly roomy, well-made interior. It's a brilliant pick for buyers who want electric ease without dullness — practical enough for daily life, but still lively enough to make parking and grocery runs feel a little fun.
details
BYD Seal U
smart #3
Costs and Consumption |
|
|---|---|
|
Price
34300 - 39800 £
|
Price
34700 - 45800 £
|
|
Consumption L/100km
-
|
Consumption L/100km
-
|
|
Consumption kWh/100km
12.1 - 20.5 kWh
|
Consumption kWh/100km
16.3 - 17.6 kWh
|
|
Electric Range
70 - 500 km
|
Electric Range
325 - 455 km
|
|
Battery Capacity
-
|
Battery Capacity
47 - 62 kWh
|
|
co2
0 - 71 g/km
|
co2
0 g/km
|
|
Fuel tank capacity
-
|
Fuel tank capacity
-
|
Dimensions and Body |
|
|---|---|
|
Body Type
SUV
|
Body Type
SUV
|
|
Seats
5
|
Seats
5
|
|
Doors
5
|
Doors
5
|
|
Curb weight
1940 - 2147 kg
|
Curb weight
1780 - 1910 kg
|
|
Trunk capacity
425 - 552 L
|
Trunk capacity
370 L
|
|
Length
4785 mm
|
Length
4400 mm
|
|
Width
1890 mm
|
Width
1844 mm
|
|
Height
1668 mm
|
Height
1556 mm
|
|
Max trunk capacity
1440 L
|
Max trunk capacity
1160 L
|
|
Payload
410 kg
|
Payload
419 - 450 kg
|
Engine and Performance |
|
|---|---|
|
Engine Type
Electric, Plugin Hybrid
|
Engine Type
Electric
|
|
Transmission
Automatic
|
Transmission
Automatic
|
|
Transmission Detail
Reduction Gearbox, Automatic Gearbox
|
Transmission Detail
Reduction Gearbox
|
|
Drive Type
Front-Wheel Drive, All-Wheel Drive
|
Drive Type
Rear-Wheel Drive, All-Wheel Drive
|
|
Power HP
218 - 324 HP
|
Power HP
272 - 428 HP
|
|
Acceleration 0-100km/h
5.9 - 9.6 s
|
Acceleration 0-100km/h
3.7 - 5.8 s
|
|
Max Speed
175 km/h
|
Max Speed
180 km/h
|
|
Torque
300 - 550 Nm
|
Torque
343 - 584 Nm
|
|
Number of Cylinders
4
|
Number of Cylinders
-
|
|
Power kW
160 - 238 kW
|
Power kW
200 - 315 kW
|
|
Engine capacity
1497 - 1498 cm3
|
Engine capacity
-
|
General |
|
|---|---|
|
Model Year
2024 - 2026
|
Model Year
2023 - 2025
|
|
CO2 Efficiency Class
A, B
|
CO2 Efficiency Class
A
|
|
Brand
BYD
|
Brand
smart
|
What drive types are available for the BYD Seal U?
The BYD Seal U is available as Front-Wheel Drive or All-Wheel Drive.
The prices shown are estimates based on German list prices, adjusted for local VAT. Local registration taxes (e.g. NoVA, BPM or CO2 malus) are not included. This information is not legally binding.