Comparison
Xiaomi SU7 vs BYD Seal
Two of the strongest Chinese-market EV sedans, compared.
BYD Seal is a vertically-integrated alternative from China's largest EV maker; SU7 is the consumer-tech entrant. They target a similar audience and price band but make very different bets — battery technology, software, and ecosystem.
| Specification | SU7Xiaomi SU7 Max | SealBYD Seal Performance |
|---|---|---|
| Starting price (China) | ~$42,000 | ~$36,000 |
| Range (CLTC) | 902 km | 650 km |
| Peak power | 690 hp | 523 hp |
| 0–100 km/h | 2.78 s | 3.8 s |
| Battery chemistry | NMC (Max trim) | BYD Blade LFP |
| Charging architecture | 897 V | 800 V |
| LiDAR | Yes (standard) | No |
| Battery warranty | 8 yr / 160k km | 8 yr / 150k km |
Where the SU7 wins
- 01Much longer rated range (902 vs 650 km).
- 02More power and faster 0–100.
- 03LiDAR + 700 TOPS compute — better autonomy hardware.
- 04Xiaomi software ecosystem (HyperOS) has tighter phone integration.
Where the BYD Seal wins
- 01Lower starting price (~$6,000 cheaper).
- 02BYD Blade battery is renowned for safety and longevity.
- 03BYD's vertical integration → more reliable supply and service.
- 04Stronger international presence (already exported to EU and SEA).
- 05Lower insurance costs in most markets.
Bottom line
The SU7 Max is the better paper spec, but the Seal is cheaper, available outside China today, and built by a far more established EV maker. If you can wait and you're in China, the SU7 is exciting. If you need a car this year and value reliability + service, the Seal is the safer pick.