BYD Seal U vs NIO EC7
The NIO EC7 leads on fast-charge peak and cargo space.
SUV
Comfort
1 of 2 versions
checked Sep 16, 2026 · byd.com
41/100#263 of 434 · Everyday
SUV
EC7 Standard Range (75 kWh)
China · checked Sep 18, 2026 · nio.com
41/100#263 of 434 · Everyday
Who's ahead - and by how much?
BYD Seal UBYD Seal UEC7NIO EC7
- Range
Different test cycles - not compared.
- Fast-charge peak- best on this row+25 kW· 22%
- Cargo space- best on this row+3.8 cu ft· 25%
- Power- best on this row+320 kW· 200%
- Battery warranty- best on this row+2 years· 25%
- AC charging- best on this row+8 kW· 286%
Every spec side by side
| Spec | BYD Seal U | NIO EC7 |
|---|---|---|
| Range and efficiency | ||
| Range (WLTP) | no data | |
| Range (CLTC) | no data | |
| Efficiency lower is better | ||
| Battery | ||
| Charging | ||
| Fast-charge peak | - best on this row | |
| 10–80% charge lower is better | ||
| Full charge at 240 V lower is better | no data | |
| AC charging | - best on this row | |
| DC port | ||
| Performance | ||
| 0–62 mph lower is better | ||
| Power | - best on this row | |
| Torque | - best on this row | |
| Top speed | - best on this row | |
| Drive | ||
| Space and size | ||
| Cargo space | - best on this row | |
| Seats | ||
| Length | ||
| Width | ||
| Height | ||
| Wheelbase | ||
| Ground clearance | ||
| Weight | no data | |
| Battery and warranty | ||
| Battery warranty | - best on this row | |
| Cell chemistry | ||
| Equipment | ||
| Heat pump | no data | |
| Vehicle-to-load (V2L) | ||
Which one suits you?
Pick the BYD Seal U if
Score by category
out of 100
BYD Seal UNIO EC7
Range
70- Different test cycles - not compared.62Charging
1431Performance
3297Practicality
4353
How much is each in the US?
Questions
Which goes further on a charge?
Range
- BYD Seal U
- 261 miWLTPcontested: sources disagree
- NIO EC7
- CLTC
- Ahead by
- Different tests
Which charges faster?
10–80% charge
- BYD Seal U
- 42 min
- NIO EC7
- 30 / 35 mincontested: sources disagree
Fast-charge peak
- Leader
- NIO EC7
- BYD Seal U
- 115 kW
- NIO EC7
- Ahead by
- 25 kW
Which is quicker?
0–62 mph
- BYD Seal U
- 9.3 scontested: sources disagree
- NIO EC7
- 3.8 s
Where next
Compare with others
BYD Seal U vs
Where the numbers come from
Checked May 19, 2026 · 26 sources
Every source link (40)
- 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://www.nio.com/news/nio-day-2022
- https://www.miit.gov.cn/jgsj/zbys/wjfb/art/2024/art_b1d6e07d8be2458bbba1155695d85c22.html
- https://www.elbil24.no/nyheter/ny-suv-kup-fra-nio/78204500
- https://www.nio.io/ec7
- https://insideevs.com/news/628588/nio-ec7-electric-coupe-crossover-revealed/
- https://car.autohome.com.cn/config/spec/66804.html
- https://www.nio.cn/ec7
- https://www.nio.cn/cdn-static/www/user-instructions/20231122/EC7/index.html
- https://www.nio.cn/policies/after-sales-service-commitment
- https://www.arenaev.com/nio_ec7_sr_2022-specs-412.php
- https://m.arenaev.com/nio_ec7_sr_2022-specs-412.php
- https://car.m.autohome.com.cn/config/spec/60182.html
- https://www.nio.com/ec7
- https://ichelabamotor.com/product/nio-ec7/
- https://evquery.com/models/nio-ec7-11
- https://wcevcar.com/en/car/nio-ec7-2024
- https://www.nio.com/cdn-static/luban/nextjs/images/default-large-files/NIO_EL7_NL_Prijslijst_202401
- https://www.electrive.com/2025/09/02/nio-standardises-100-kwh-battery-across-full-chinese-lineup/
- https://evmagz.com/nio-ec7-specificatons-battery-range-and-price/
- https://chinese-ev.com/nio-ec7-specifications/
- https://www.carfolio.com/nio-ec7-811481