Side by side

Aion UT 420 Standard vs BYD Atto 1 Premium

Same body type (hatchback) — comparable price, specs and features.

Prices checked 25 Jun 2026
Aion UT 420 Standard
฿519,900MY 2026
Buy new
BYD Atto 1 Premium
฿459,900MY 2026
Buy new
▸ 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.
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AionUT
฿519,900
vs
BYDAtto1
฿459,900
Which one's for you
Pick the Aion UT 420 Standard if
  • the quicker 0–100 (11.9 s) matters
  • you charge on the road often (70 kW DC peak)
Pick the BYD Atto 1 Premium if
  • you'd rather save ฿60,000 for similar specs

Where they differ

Current price
UT 420 Standard
฿519,900
Atto 1 Premium
฿459,900
WLTP 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
14.9 s
Battery
UT 420 Standard
50.27 kWh
Atto 1 Premium
38.88 kWh
Top speed
UT 420 Standard
150 km/h
Atto 1 Premium
130 km/h

evchu Score

UT 420 Standard

46
evchu Score
Niche pick
Strongest for Value
  • Value94
  • Range11
  • Cost to own92
  • Charging7
  • Performance4

Atto 1 Premium

45
evchu Score
Niche pick
Strongest for Value
  • Value96
  • Range6
  • Cost to own95
  • Charging3
  • Performance0
Cost of ownership, head to head

All-in ฿/month over 5 years — purchase minus resale, plus charging, insurance, tax and upkeep.

UT 420 Standard
฿7,283/mo
5-yr total: ฿436,956
Lower cost
Atto 1 Premium
฿6,542/mo
5-yr total: ฿392,498

Over 5 years the BYD Atto 1 Premium costs about ฿741/mo less to own — roughly ฿44,458 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 — ฿60,000 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 WLTP 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.

Which is quicker, the Aion UT 420 Standard or the BYD Atto 1 Premium?

The Aion UT 420 Standard is quicker, with the faster 0–100 km/h time.

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