Side by side
Aion UT 420 Standard vs BYD Atto 1 Premium
Same body type (hatchback) — comparable price, specs and features.
Prices checked 12 Nov 2026
฿549,900MY 2026
฿459,900MY 2026
▸ Race them on a real trip
Watch Aion UT vs BYD Atto 1 drive Bangkok → Chiang Mai
Same route, real charge stops for each EV, head-to-head ranking on cost, time and stops.
🏁 Start race
evchu.com
evchu
฿549,900
vs
฿459,900
▸ Which one's for you
Pick the Aion UT 420 Standard if
- you charge on the road often (70 kW DC peak)
- headroom matters — 11.4 kWh more battery
Pick the BYD Atto 1 Premium if
- you'd rather save ฿90,000 for similar specs
▸ Where they differ
Current price
UT 420 Standard
฿549,900
Atto 1 Premium
฿459,900
Range
UT 420 Standard
328 km
Atto 1 Premium
304 km
DC charging
UT 420 Standard
70 kW
Atto 1 Premium
40 kW
0–100 km/h
UT 420 Standard
11.9 s
Atto 1 Premium
—
Battery
UT 420 Standard
50.27 kWh
Atto 1 Premium
38.88 kWh
Top speed
UT 420 Standard
150 km/h
Atto 1 Premium
—
▸ evchu Score
UT 420 Standard
45
evchu Score
Niche pick
Strongest for Cost to own
- Value91
- Range9
- Cost to own93
- Charging9
- Performance2
Atto 1 Premium
53
evchu Score
Niche pick
Strongest for Value
- Value96
- Range5
- Cost to own96
- Charging3
Cost of ownership, head to head
All-in ฿/month over 5 years — purchase minus resale, plus charging, insurance, tax and upkeep.
UT 420 Standard
฿7,549/mo
5-yr total: ฿452,941
Lower cost
Atto 1 Premium
฿6,542/mo
5-yr total: ฿392,498
Over 5 years the BYD Atto 1 Premium costs about ฿1,007/mo less to own — roughly ฿60,443 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 UT 420 Standard or the BYD Atto 1 Premium?
The BYD Atto 1 Premium is cheaper — ฿90,000 less than the Aion UT 420 Standard at current prices.
Which has more range, the Aion UT 420 Standard or the BYD Atto 1 Premium?
The Aion UT 420 Standard has the longer rated range — 24 km more than the BYD Atto 1 Premium.
Which charges faster, the Aion UT 420 Standard or the BYD Atto 1 Premium?
The Aion UT 420 Standard charges faster, with DC fast charging at up to 70 kW.
▸ Explore the bracket
