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BYD Seal vs smart #3 comparison

Compare performance (530 HP vs 272 HP), boot space and price (41,100 £ vs 42,000 £ ) at a glance. Find out which car is the better choice for you – BYD Seal or smart #3?

BYD Seal vs smart #3: Key differences

BYD Seal

4.9 (1 Reviews)
rate
  • marginally cheaper
  • substantially more power
  • marginally more efficient
  • noticeably more electric range
  • clearly quicker 0–100 km/h
details

smart #3

5 (1 Reviews)
rate
  • very slightly lighter
details

All details on performance, efficiency, range and trunk space can be found in the technical comparison below – including user reviews for both models.

By Achim Sedelmaier

Here’s where it gets real: The technical differences in detail

Seal

Costs and Efficiency:

When it comes to price and running costs, the biggest differences usually appear. This is often where you see which car fits your budget better in the long run.

BYD Seal is marginally cheaper – starting at 41,100 £ , while the smart #3 costs 42,000 £ . That’s a price difference of around 857 £.

In terms of energy consumption, the BYD Seal is marginally more efficient: consuming 15.4 kWh/100km compared to 16.3 kWh/100km for the smart #3. That’s a difference of about 0.9 kWh/100km.

As for electric range, the BYD Seal offers noticeably more range – reaching up to 570 km, about 115 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 BYD Seal offers substantially more power – delivering 530 HP compared to 272 HP. That’s roughly 258 HP more horsepower.

When accelerating from 0 to 100 km/h, the BYD Seal is clearly quicker – completing the sprint in 3.8 s, while the smart #3 takes 5.8 s. That’s about 2 s quicker.

There’s also a difference in torque: the BYD Seal delivers significantly more torque with 670 Nm compared to 384 Nm. That’s about 286 Nm more.

Seal

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 terms of curb weight, smart #3 is very slightly lighter – 1,810 kg compared to 1,907 kg. The difference is around 97 kg.

When it comes to payload, the BYD Seal carries very slightly more – 473 kg compared to 450 kg. That’s a difference of about 23 kg.

Who wins the race in the data check?

The BYD Seal holds a decisive overall lead 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.

from £41,100
Seal

BYD Seal

  • Engine Type Electric
  • Transmission Automatic
  • Drive Type Rear-Wheel Drive, All-Wheel Drive
  • Power HP 231 - 530 HP
  • Consumption kWh/100km 15.4 - 18.2 kWh/100km
  • Electric Range 460 - 570 km
details

Frequently compared as well

BYD Seal
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BYD Seal
BYD Sealion 7
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This comparison looks at the BYD Seal and the BYD Sealion 7 to help you decide which electric BYD best fits your needs. The Seal is a sleek, performance-oriented electric sedan, while the Sealion 7 focuses on greater practicality and interior flexibility for buyers who need more space.
BYD Seal
smart #3

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

BYD Seal

The BYD Seal is a sleek, fastback-style electric sedan that blends sporty design with a comfortable, tech-forward cabin. It delivers an engaging driving feel, impressive real-world range and strong value, making it a compelling choice for buyers who want a modern EV sedan.

details
E39C85E9-48DC-4818-A3E7-3F02C3DB2C91
8CF01411-B14A-410A-AA11-F9D5B2E2275B
A96F2FC6-6F90-4820-9B66-B5BED237CAFF
56EE1144-A336-4202-B4CC-B68903013A42
03694851-BE3F-404A-85F8-4557ADB00247

Reviews BYD Seal

4.9 (1 Reviews)
rate
Thomas
14 Apr 2026, 15:59:57

Very well equipped and really good quality. Driving performance is more than adequate and very comfortable.

How do you mainly use this car? (optional): Family car
Efficiency / Consumption & Range
Comfort & Interior
Driving Fun / Performance
Technology & Infotainment
Safety
Practicality / Trunk & Everyday Use
Value for Money

smart #3

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
smart-hashtag3-brabus-photon-orange-exterior-mallorca1
smart-hashtag3-brabus-photon-orange-exterior-mallorca13
smart-hashtag3-brabus-photon-orange-exterior-mallorca21
smart-hashtag3-brabus-photon-orange-interior-mallorca10
smart-hashtag3-brabus-photon-orange-interior-mallorca3
smart-hashtag3-premium-ceramic-cream-interior-mallorca7

Reviews smart #3

5 (1 Reviews)
rate
Ronny
16 Oct 2025, 13:10:59

Handsome design, packed with advanced driver‑assist technology and stellar performance — all at an attractive price. Highly recommended, this car!

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The BYD Seal and the XPeng P7+ are two sharp electric sedans from Chinese brands that deliver long range, sporty design and advanced technology at competitive prices. This comparison examines how the Seal’s efficient powertrain and rich feature set stack up against the P7+’s driver-assist …
BYD Seal U
BYD Seal
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BMW i4
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The BMW i4 feels like a familiar, impeccably tuned sports saloon — razor-sharp steering, plush interior and that badge-backed refinement for drivers who crave engagement over bargains. The BYD Seal, meanwhile, is the plucky tech-packed challenger: startling range and kit for the money, bold design …
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BYD Seal
smart #3

Costs and Consumption
Price
41,100 - 46,300 £
Price
42,000 £
Consumption L/100km
-
Consumption L/100km
-
Consumption kWh/100km
15.4 - 18.2 kWh/100km
Consumption kWh/100km
16.3 kWh/100km
Electric Range
460 - 570 km
Electric Range
455 km
Battery Capacity
-
Battery Capacity
-
co2
0 g/km
co2
0 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
Sedan
Body Type
SUV
Seats
5
Seats
5
Doors
-
Doors
-
Curb weight
1,907 - 2,185 kg
Curb weight
1,810 kg
Trunk capacity
-
Trunk capacity
370 L
Length
-
Length
-
Width
1,875 mm
Width
1,844 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
446 - 473 kg
Payload
450 kg

Engine and Performance
Engine Type
Electric
Engine Type
Electric
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Reduction Gearbox
Transmission Detail
Reduction Gearbox
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Drive Type
Rear-Wheel Drive
Power HP
231 - 530 HP
Power HP
272 HP
Acceleration 0-100km/h
3.8 - 7.5 s
Acceleration 0-100km/h
5.8 s
Max Speed
-
Max Speed
-
Torque
360 - 670 Nm
Torque
384 Nm
Number of Cylinders
-
Number of Cylinders
-
Power kW
170 - 390 kW
Power kW
200 kW
Engine capacity
-
Engine capacity
-

General
Model Year
2026
Model Year
2025
CO2 Efficiency Class
A
CO2 Efficiency Class
A
Brand
BYD
Brand
smart
Is the BYD Seal offered with different drivetrains?

The BYD Seal is offered with Rear-Wheel Drive or All-Wheel Drive.

DriveDuel uses data analysis and artificial intelligence to evaluate vehicle data and create content. Content is regularly reviewed and improved. The displayed prices are estimates based on German list prices, adjusted to the respective country’s VAT. Country-specific registration taxes are not included. This information is not legally binding.