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BYD Atto 3 vs smart #3 comparison

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

BYD Atto 3 vs smart #3: Key differences

BYD Atto 3

5 (2 Reviews)
rate
  • marginally cheaper
  • barely more power
  • only slightly more efficient
  • a bit more electric range
  • a bit more trunk space

smart #3

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

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

Atto 3

Costs and Efficiency:

Price and efficiency are often the first things buyers look at. Here it becomes clear which model has the long-term edge – whether at the pump, the plug, or in purchase price.

BYD Atto 3 is marginally 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 only slightly 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 a bit more range – reaching up to 510 km, about 55 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 Atto 3 offers barely 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 very 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 a bit 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 very slightly more torque with 584 Nm compared to 560 Nm. That’s about 24 Nm more.

Atto 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 a bit 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 somewhat 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 narrowly 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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smart #3

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

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
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Reviews BYD Atto 3

5 (2 Reviews)
rate

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

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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smart #3

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

General
Model Year
2,023 - 2,026
Model Year
2,023 - 2,025
CO2 Efficiency Class
A
CO2 Efficiency Class
A
Brand
BYD
Brand
smart
Is the BYD Atto 3 offered with different drivetrains?

The BYD Atto 3 is offered with Front-Wheel Drive, 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.