Side by side
Aion Hyptec HT 620 Premium vs BYD Sealion 7 Premium
Same body type (mid suv) — comparable price, specs and features.




- the quicker 0–100 (5.8 s) matters
- you charge on the road often (280 kW DC peak)
- you'd rather save ฿59,100 for similar specs
- high-speed cruising matters (215 km/h top speed)
▸ Where they differ
▸ evchu Score
Hyptec HT 620 Premium
- Value67
- Range54
- Cost to own65
- Charging81
- Performance61
Sealion 7 Premium
- Value66
- Range45
- Cost to own66
- Charging47
- Performance43
All-in ฿/month over 5 years — purchase minus resale, plus charging, insurance, tax and upkeep.
Over 5 years the BYD Sealion 7 Premium costs about ฿543/mo less to own — roughly ฿32,596 cheaper all-in.
Estimate: 15,000 km/yr, charged mostly at home. Resale from used-market data where available, else a conservative segment estimate.
▸ Common questions
Which is cheaper, the Aion Hyptec HT 620 Premium or the BYD Sealion 7 Premium?
The BYD Sealion 7 Premium is cheaper — ฿59,100 less than the Aion Hyptec HT 620 Premium at current prices.
Which has more range, the Aion Hyptec HT 620 Premium or the BYD Sealion 7 Premium?
The Aion Hyptec HT 620 Premium has the longer WLTP range — 24 km more than the BYD Sealion 7 Premium.
Which charges faster, the Aion Hyptec HT 620 Premium or the BYD Sealion 7 Premium?
The Aion Hyptec HT 620 Premium charges faster, with DC fast charging at up to 280 kW.
Which is quicker, the Aion Hyptec HT 620 Premium or the BYD Sealion 7 Premium?
The Aion Hyptec HT 620 Premium is quicker, with the faster 0–100 km/h time.
