BYD Sea Lion 07 vs Xiaomi SU7 Ultra: Which EV is better?
Head-to-head: BYD Sea Lion 07 vs Xiaomi SU7 Ultra. Compare real range, efficiency, charging time, price, rating and running costs to find the best electric vehicle for you in 2026.
Our verdict
Xiaomi SU7 Ultra wins this head-to-head
It wins 6 of 8 categories compared below, with a margin of 5 category wins.
The numbers that matter
Real, comparable stats from our database. The green value wins each category.
| Specification | Sea Lion 07 | SU7 Ultra |
|---|---|---|
| Range SU7 Ultra wins | 530 km | 630 km |
| Battery SU7 Ultra wins | 82.5 kWh | 93.7 kWh |
| Efficiency SU7 Ultra wins | 16.8 kWh/100km | 16.4 kWh/100km |
| 0-100 km/h SU7 Ultra wins | 3.9 s | 1.98 s |
| Fast charge 10-80% SU7 Ultra wins | ~28 min | ~25 min |
| Seats tie | 5 | 5 |
| Price Sea Lion 07 wins | $32,000 | $82,400 |
| Rating SU7 Ultra wins | 4.4 / 5 | 4.8 / 5 |
| Est. running cost / yr | $378/yr | $369/yr |
View the full specification sheet
| Specification | Sea Lion 07 | SU7 Ultra |
|---|---|---|
| Battery | 82.5 kWh (LFP Blade) | 93.7 kWh |
| Range | 530 km (CLTC) | 630 km (CLTC) |
| Top speed | 200 km/h | 350 km/h |
| Power | AWD · 517 hp | Tri-motor AWD · 1,548 hp |
| 0-100 km/h | 3.9 s | 1.98 s |
| Charging (10-80%) | ~28 min | ~25 min (800V) |
| Drive | Dual motor AWD | Tri-motor AWD |
| Efficiency | 16.8 kWh/100 km | 16.4 kWh/100 km |
| Seats | 5 | 5 |
| Cargo | 490 L | 480 L |
| V2L | Yes | — |
BYD Sea Lion 07
Pros
- Striking design
- Quick AWD
- Safe blade battery
- Well equipped
Cons
- Firm ride on 20" wheels
- Boot smaller than rivals
- No heat pump on base
- Brand new to export markets
Xiaomi SU7 Ultra
Pros
- Ridiculous performance
- Track-ready hardware
- Practical cabin
- Very fast charging
Cons
- Very expensive
- Tri-motor drains power
- Young brand
- Tight rear headroom
Frequently asked questions
Is the Xiaomi SU7 Ultra really better than BYD Sea Lion 07?
Our verdict is based on real specs: range, battery, efficiency, acceleration, charging speed, seats, price and rating. The winner wins the majority of those categories, but the right choice depends on your budget, driving style and priorities.
Which has more range, BYD Sea Lion 07 or Xiaomi SU7 Ultra?
530 km vs 630 km respectively, before factoring in weather and driving conditions.
Which is cheaper to run?
Based on official efficiency and a typical $0.15/kWh tariff at 15,000 km per year, running costs are estimated at $378/yr for the BYD Sea Lion 07 and $369/yr for the Xiaomi SU7 Ultra.
Should I compare more models?
Yes - add both models to our interactive comparator to see every spec side by side, or use the Which EV quiz to find more models that fit your budget and lifestyle.
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Not sure which one is right for you?
Add these models to our interactive comparator and compare every spec side by side, or take the quiz to find even more matches.