Hitachi 1 Ton 5-Star Inverter Split AC
RSOG512HEEA
Best overall Hitachi 1-ton AC for reliability and efficiency

Prices updated monthly. We earn a commission at no extra cost to you.
What We Liked
- Expandable Inverter boosts cooling when needed
- PM 2.5 + Koukin anti-bacterial filter
- 100% copper condenser for faster cooling
- 32 dB — quietest Hitachi 1-ton model
- Tropical inverter rated for 52°C ambient
Take a Note
- No Wi-Fi or smart app connectivity
- Smaller service network — ~1,800 centres
- Premium pricing at ₹38,990
- No convertible mode like LG/Carrier
Price
₹38,990
Monthly Bill
₹640/mo
ISEER
4.55
Noise
32dB
Verdict: The Hitachi RSOG512HEEA is the best Hitachi 1-ton AC in India — it combines Expandable Inverter technology, a 5-star rating, and legendary Hitachi reliability at a premium-but-fair ₹38,990. The 32 dB noise level and PM 2.5 filter make it ideal for bedrooms and health-conscious buyers. It consumes approximately 80 units/month at 8 hours daily usage, translating to roughly ₹640/month at India's average electricity rate of ₹8/unit.
| Star Rating | 5-Star BEE 2026 |
| Type | Inverter Split |
| ISEER Rating | 4.55 |
| Cooling Capacity | 3,520 W |
| Noise Level | 32 dB |
| Refrigerant | R32 |
| Warranty | 10-year compressor |
| Best For | Best overall Hitachi 1-ton AC for reliability and efficiency |