Sharp R-394P-ST review: 34L and a sensor that thinks for you

The Sharp R-394P-ST is our Best large capacity pick: a 34L cavity, the biggest in our roundup, with 1200W output and a humidity sensor that works out cook times so you don’t have to.

How big is 34L, really?

Big enough to change what the microwave is for. Most Filipino homes buy a 20L unit and reheat one plate at a time. At 34L a full roasting dish fits, a large casserole fits, and a family’s worth of leftovers goes in together rather than in two rounds. If you cook for a big household or reheat party food, this is the size that stops the microwave being a bottleneck.

1200W output is the highest in our roundup, and at this cavity size it’s necessary rather than showy. A 34L oven running 700W would take forever to heat a big dish through.

The footprint is the honest cost. This is a wide, deep unit, and counter depth is what catches people out, not width. Measure before ordering.

What does the humidity sensor do?

This is the feature that makes it feel expensive in a good way. Microwaving is normally guesswork: you punch in two minutes, check, add another thirty seconds, check again. The smart humidity sensor reads the steam coming off the food and sets the time and power itself.

In daily use that means one button instead of three rounds of guessing, and fewer plates of rice dried out because you added a minute too many. The 7-digit LED text display spells out what it’s doing in words rather than codes, which sounds minor until you’re trying to work out what “P-3” meant on a cheaper unit.

The stainless steel finish wipes clean and hides marks better than gloss black.

Is the Sharp R-394P-ST sulit?

Around ₱9,200 as of August 26, 2026. Check the latest price on Shopee. Assuming five years of daily use, a conservative expectation for a Sharp with local service, that’s about ₱5 a day.

It’s near the top of our price range, and there’s one gap you should weigh: it’s a solo microwave. No grill, no browning. The Toshiba 30L with a grill costs less, and the Midea 30L inverter costs less and adds both a grill and inverter power delivery. What Sharp gives you instead is the largest cavity here, the highest output, the sensor, and Sharp Philippines behind the warranty. Whether that beats a grill depends entirely on whether you’d use one.

Who the Sharp R-394P-ST suits

Buy this if you regularly heat big dishes and want the microwave to work out the timing for you. It’s the right choice for a large household, for someone who reheats party leftovers, or for anyone tired of guessing at minutes. If you want browning, or your counter is shallow, this isn’t the one.

If the Sharp R-394P-ST is not right

If you want a big cavity plus a grill and inverter power, the Midea 30L Inverter Quattro is our Best inverter pick at 30L for less than this as of August 26, 2026, with a 5-year magnetron warranty. For a similar large solo cavity with a ceramic interior and 15 preset menus, the Samsung MS32DG4504AG is the 32L alternative.

See how it ranks in our best microwave ovens in the Philippines roundup, or work out what capacity your household actually needs with our microwave oven buying guide.