BYD Seal U vs Smart #1
The Smart #1 leads on 10–80% charge. The BYD Seal U leads on cargo space.
SUV
Comfort
1 of 2 versions
checked Sep 16, 2026 · byd.com
41/100#263 of 434 · Everyday
SUV
Pro+
1 of 7 versions
United Kingdom · checked Oct 4, 2026 · uk.smart.com
41/100#264 of 434 · Everyday
Who's ahead - and by how much?
BYD Seal UBYD Seal USmart #1Smart #1
- Range (WLTP)
A disputed figure or another version's - not compared.
- 10–80% chargelower is better- best on this row12 min faster· 29%
- Fast-charge peak- best on this row+35 kW· 30%
- Cargo space- best on this row+3.6 cu ft· 32%
- AC charging- best on this row+11 kW· 100%
- Top speed- best on this row+3 mph· 3%
Every spec side by side
| Spec | BYD Seal U | Smart #1 |
|---|---|---|
| Range and efficiency | ||
| Range (WLTP) | ||
| Efficiency lower is better | ||
| Battery | ||
| Charging | ||
| Fast-charge peak | - best on this row | |
| 10–80% charge lower is better | - best on this row | |
| Full charge at 240 V lower is better | no data | |
| AC charging | - best on this row | |
| DC port | no data | |
| Performance | ||
| 0–62 mph lower is better | ||
| Power | version: Premium | |
| Torque | - best on this row | |
| Top speed | - best on this row | |
| Drive | ||
| Space and size | ||
| Cargo space | - best on this row | |
| Front trunk | no data | |
| Seats | ||
| Length | ||
| Width | ||
| Height | ||
| Wheelbase | ||
| Ground clearance | ||
| Weight | ||
| Battery and warranty | ||
| Battery warranty | ||
| Cell chemistry | ||
| Equipment | ||
| Heat pump | ||
| Vehicle-to-load (V2L) | ||
Which one suits you?
Pick the BYD Seal U if
Score by category
out of 100
BYD Seal USmart #1
Range
7065Charging
1434Performance
3262Practicality
4332
How much is each in the US?
Questions
Which goes further on a charge?
Range (WLTP)
- BYD Seal U
- 261 miWLTPcontested: sources disagree
- Smart #1
- 261 miWLTPcontested: sources disagree
Which charges faster?
Smart #1Smart #1
10–80% charge
- Leader
- Smart #1
- BYD Seal U
- 42 min
- Smart #1
- 30 min
- Ahead by
- 12 min
Fast-charge peak
- Leader
- Smart #1
- BYD Seal U
- 115 kW
- Smart #1
- 150 kW
- Ahead by
- 35 kW
Which is quicker?
0–62 mph
- BYD Seal U
- 9.3 scontested: sources disagree
- Smart #1
- 6.7 s
Where next
Compare with others
BYD Seal U vs
Where the numbers come from
Checked May 19, 2026 · 30 sources
Every source link (48)
- https://www.byd.com/eu/electric-cars/seal-u.html
- https://www.byd.com/material/byd-site/pl/campaign/1502/Seal%20U-0226-BPS-PL-V1.pdf
- https://www.byd.com/eu/car/seal-u
- https://www.byd.com/material/byd-site/eu/pdfs/seal-u/Seal%20U-0225-BPS-EN-V5.pdf
- https://www.byd.com/eu/hybrid-cars/seal-u-dm-i
- https://www.byd.com/es-es/news-list/nuevo-byd-seal-u-un-suv-familiar-100-electrico-practico-espacioso-comodo-y-respetuoso-con-el-medio-ambiente
- https://media.byd.com/byd-expands-european-portfolio-with-new-byd-seal-u-practical-spacious-comfortable-family-oriented-and-eco-conscious-electric-suv/?lang=eng
- https://www.byd.com/content/dam/byd-site/hr/pdfs/seal-u/BYD_SEAL_U-0524-BPS-EN-V4-web.pdf
- https://www.byd.com/content/dam/byd-site/hu/pdfs/seal-u/BYD_SEAL_U_Leaflet_300724.pdf
- https://www.byd.com/de/konfiguration/seal-u
- https://www.byd.com/material/byd-site/nl/pdfs/pricelist_jan_2026/ev/Prijslijst%20BYD%20SEAL%20U%20EV%20per%2001-01-2026.pdf
- https://www.gas-junky.at/2024/10/04/byd-seal-u-im-praxistest-the-right-seal-for-u/
- https://byd.lt/media/otyfz0ka/seal-u.pdf
- https://www.topgear.com/car-reviews/byd/seal-u
- https://www.byd.lt/media/4rhlhtgq/seal-u.pdf
- https://www.parkers.co.uk/byd/seal-u/review/
- https://www.adac.de/rund-ums-fahrzeug/autokatalog/marken-modelle/byd/seal-u/1generation/329431/
- https://en.wikipedia.org/wiki/BYD_Song_Plus
- https://citywestcountry.co.uk/byd-seal-u-dm-i-charging-guide/
- https://discodata.eea.europa.eu/sql?query=SELECT%20Mk%2C%20Cn%2C%20%5BEp%20(KW)%5D%2C%20%5BM%20(kg)%5D%2C%20%5BZ%20(Wh%2Fkm)%5D%2C%20Zr%2C%20SUM(R)%20AS%20registrations%20FROM%20%5BCO2Emission%5D.%5Blatest%5D.%5Bco2cars_2024Pv29%5D%20WHERE%20Ft%3D'electric'%20AND%20Mk%3D'SMART'%20AND%20Cn%3D'%231'%20GROUP%20BY%20Mk%2C%20Cn%2C%20%5BEp%20(KW)%5D%2C%20%5BM%20(kg)%5D%2C%20%5BZ%20(Wh%2Fkm)%5D%2C%20Zr
- https://carfueldata.vehicle-certification-agency.gov.uk/downloads/create_latest_data_csv.asp?id=6
- https://de.smart.com/de/models/hashtag-one/specifications/
- https://www.adac.de/rund-ums-fahrzeug/elektromobilitaet/elektroauto/e-auto-reichweiten-test-im-winter/
- https://au.smart.com/en/configurator/
- https://uk.smart.com/en/models/hashtag-one/
- https://media.smart.com/en-GB/261360-the-new-smart-1-uk-specification-and-pricing-revealed/
- https://uk.smart.com/en/models/hashtag-one/specifications/
- https://media.smart.com/de-DE/261111-lenkradheizung-fur-smart-1-und-3-geschenkt/
- https://s7.future.smart.com/is/content/smarteurope/smart/smart-dam/digital/website/documents/de/de/downloads/smart-hashtag-1-Line-Overview-DE.pdf
- https://de.motor1.com/reviews/717232/tatsachlicher-verbrauchstest-smart-hashtag1-proplus/
- https://www.euroncap.com/assessments/smart/1/0923/
- https://assets.adac.de/image/upload/Autodatenbank/Autotest/at6322-smart-1-proplus-22-kw-obc/smart-1-proplus-22-kw-obc.pdf
- https://www.autocar.co.uk/car-review/smart/1
- https://uk.smart.com/en/customizer/?pn18=HXYH1D1C52B900001M
- https://www.arenaev.com/smart_1_brabus_2023-specs-606.php
- https://www.adac.de/rund-ums-fahrzeug/autokatalog/marken-modelle/smart/1/1generation/352300/
- https://www.nyteknik.se/elbilar/elbilstest-klarar-volvo-ex30-svensk-vinter-och-hur-paverkas-forbrukningen/4242664
- https://www.carbase.my/smart/smart-1/hx11/premium-2024
- https://de.smart.com/de/support/faq/
- https://www.carwow.de/smart/1/technische-daten
- https://ch.smart.com/de/models/hashtag-one/specifications/
- https://www.adac.de/rund-ums-fahrzeug/autokatalog/marken-modelle/smart/1/1generation/327810/
- https://aeva.asn.au/files/3737/
- https://www.smartecuador.com.ec/subaru/site/docs/20250213/20250213162359/smart__1_ft_10_2025.pdf
- https://nz.smart.com/app/uploads/2025/06/smart_1_-specification-sheet_11_06_25.pdf
- https://www.carexpert.com.au/smart/1/2025-pro-suv-rwd-electric-jsgfwfwo20240716
- https://zecar.com/electric-vehicles/smart/-1/2024/pro
- https://media.smart.com/en-CEU/260803-five-star-euro-ncap-rating-for-the-smart-1/