Best Air Conditioners · head-to-head

LG Dual Inverter Smart Window AC (LW1222IVSM) vs Hisense UltraSlim 12,000 BTU Smart Inverter Window AC (AHLW1225TW1W)

A sourced, side-by-side comparison. Hisense UltraSlim 12,000 BTU Smart Inverter Window AC (AHLW1225TW1W) is cheaper at $449. Every spec and price links to its source.

Which is better: the LG Dual Inverter Smart Window AC (LW1222IVSM) or Hisense UltraSlim 12,000 BTU Smart Inverter Window AC (AHLW1225TW1W)?

On the specs we track, they're closely matched. The Hisense UltraSlim 12,000 BTU Smart Inverter Window AC (AHLW1225TW1W) is the cheaper at $449.

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Full spec sheet

marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.

Spec LG Dual Inverter Smart Window AC (LW1222IVSM) Hisense UltraSlim 12,000 BTU Smart Inverter Window AC (AHLW1225TW1W)
US price $549 LG.com MSRP $449 Best Buy price (SKU 6636567)
BrandLGHisense
Released20232024
Type window window
Btu 12000 BTU 12000 BTU
Coverage (sq ft) 550 450
Noise dba 44 37
Smart Wi-Fi Yes Yes
Energy star Yes Yes
Inverter Yes Yes
Ceer 15 15

Sources — LG Dual Inverter Smart Window AC (LW1222IVSM): lg.com (verified 2026-06-28). Hisense UltraSlim 12,000 BTU Smart Inverter Window AC (AHLW1225TW1W): bestbuy.com (verified 2026-06-15).

What's the difference between the LG Dual Inverter Smart Window AC (LW1222IVSM) and Hisense UltraSlim 12,000 BTU Smart Inverter Window AC (AHLW1225TW1W)?

Where the two actually differ on the specs we track (2 of 8). Matching specs are omitted.

  • Coverage (sq ft): LG Dual Inverter Smart Window AC (LW1222IVSM) 550 vs Hisense UltraSlim 12,000 BTU Smart Inverter Window AC (AHLW1225TW1W) 450
  • Noise dba: LG Dual Inverter Smart Window AC (LW1222IVSM) 44 vs Hisense UltraSlim 12,000 BTU Smart Inverter Window AC (AHLW1225TW1W) 37

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