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smart #3 vs BYD Atto 3 comparison

Compare performance (428 HP vs 449 HP), boot space and price (34,700 £ vs 33,400 £ ) at a glance. Find out which car is the better choice for you – smart #3 or BYD Atto 3?

smart #3 vs BYD Atto 3: Key differences

smart #3

5 (1 Reviews)
rate
  • only slightly quicker 0–100 km/h
  • marginally lighter

BYD Atto 3

5 (2 Reviews)
rate
  • only slightly cheaper
  • only slightly more power
  • marginally more efficient
  • somewhat more electric range
  • moderately more trunk space

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

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

#3

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 Atto 3 is only slightly cheaper – starting at 33,400 £ , while the smart #3 costs 34,700 £ . That’s a price difference of around 1,285 £.

In terms of energy consumption, the BYD Atto 3 is marginally more efficient: consuming 16 kWh/100km compared to 16.3 kWh/100km for the smart #3. That’s a difference of about 0.3 kWh/100km.

As for electric range, the BYD Atto 3 offers somewhat more range – reaching up to 510 km, about 55 km more than the smart #3.

Atto 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 Atto 3 offers only slightly more power – delivering 449 HP compared to 428 HP. That’s roughly 21 HP more horsepower.

When accelerating from 0 to 100 km/h, the smart #3 is only slightly quicker – completing the sprint in 3.7 s, while the BYD Atto 3 takes 3.9 s. That’s about 0.2 s quicker.

Looking at top speed, the smart #3 is slightly faster – reaching 180 km/h, while the BYD Atto 3 tops out at 160 km/h. The difference is around 20 km/h.

There’s also a difference in torque: the smart #3 delivers barely more torque with 584 Nm compared to 560 Nm. That’s about 24 Nm more.

#3

Space and Everyday Use:

Cabin size, boot volume and payload all play a role in everyday practicality. Here, comfort and flexibility make the difference.

Both vehicles offer seating for 5 people.

In terms of curb weight, smart #3 is marginally lighter – 1,780 kg compared to 1,825 kg. The difference is around 45 kg.

Looking at boot space, the BYD Atto 3 offers moderately more boot space – 440 L compared to 370 L. That’s a difference of about 70 L.

For maximum load capacity, the BYD Atto 3 offers moderately more capacity – up to 1,338 L, about 178 L more than the smart #3.

When it comes to payload, the smart #3 carries visibly more – 450 kg compared to 335 kg. That’s a difference of about 115 kg.

Who wins the race in the data check?

The BYD Atto 3 is barely 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.

from £33,400
Atto 3

BYD Atto 3

  • Engine Type : Electric
  • Transmission : Automatic
  • Drive Type : Front-Wheel Drive, Rear-Wheel Drive, All-Wheel Drive
  • Power HP : 204 - 449 HP
  • Consumption kWh/100km : 16 kWh/100km
  • Electric Range : 420 - 510 km
details

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Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

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.

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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!

BYD Atto 3

The BYD Atto 3 mixes quirky crossover styling with a cleverly packaged interior that feels more premium than its price suggests. Easy to drive, surprisingly practical and loaded with user-friendly tech, it's a strong choice for buyers who want an EV that's fun without being fussy.

details
5F27650C-A457-4BA8-ABBF-B0A381081F50
4CD0D607-8DF0-480E-92A0-FFE2DD0C2A7D
A4BCEC5F-F54A-4C81-8C3B-2C7767DF6D72
E96AFF07-FF39-4455-88FE-E60F4D607FE6
AD877C78-5875-44DA-B1B6-1E99A05AC058

Reviews BYD Atto 3

5 (2 Reviews)
rate

No reviews yet. Share your experience and help others decide.

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Costs and Consumption
Price
34,700 - 45,800 £
Price
33,400 - 43,700 £
Consumption L/100km
-
Consumption L/100km
-
Consumption kWh/100km
16.3 - 17.6 kWh/100km
Consumption kWh/100km
16 kWh/100km
Electric Range
325 - 455 km
Electric Range
420 - 510 km
Battery Capacity
47 - 62 kWh
Battery Capacity
-
co2
0 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
1,780 - 1,910 kg
Curb weight
1,825 kg
Trunk capacity
370 L
Trunk capacity
440 L
Length
4,400 mm
Length
4,455 mm
Width
1,844 mm
Width
1,875 mm
Height
1,556 mm
Height
1,615 mm
Max trunk capacity
1,160 L
Max trunk capacity
1,338 L
Payload
419 - 450 kg
Payload
335 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
Front-Wheel Drive, Rear-Wheel Drive, All-Wheel Drive
Power HP
272 - 428 HP
Power HP
204 - 449 HP
Acceleration 0-100km/h
3.7 - 5.8 s
Acceleration 0-100km/h
3.9 - 7.3 s
Max Speed
180 km/h
Max Speed
160 km/h
Torque
343 - 584 Nm
Torque
310 - 560 Nm
Number of Cylinders
-
Number of Cylinders
-
Power kW
200 - 315 kW
Power kW
150 - 330 kW
Engine capacity
-
Engine capacity
-

General
Model Year
2,023 - 2,025
Model Year
2,023 - 2,026
CO2 Efficiency Class
A
CO2 Efficiency Class
A
Brand
smart
Brand
BYD
What drivetrain options does the smart #3 have?

The smart #3 is available as 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.