WEN DF451i vs A-iPower SUA4300iD

Comparison Overview

Key takeaways

• A-iPower SUA4300iD weighs just 54.8 lbs, nearly half the WEN's 100 lbs
• WEN DF451i runs quieter at 58 dB compared to the A-iPower's 62 dB
• WEN DF451i delivers slightly more power at 3500 running and 4500 starting watts
• Both offer dual-fuel capability with gasoline and propane options
• Both include inverter technology for clean power safe for sensitive electronics
• Both carry identical 3-year warranty coverage

Best use cases

Choose the WEN DF451i if you need a generator that stays mostly in one place or doesn't need to be moved often. At 100 lbs, it's not something you'll want to carry far, but its 3500 running watts, 4500 starting watts, and 58 dB noise level make it a strong pick for home backup power, powering tools in a garage workshop, or running an RV air conditioner. The quieter operation is a real advantage in campgrounds or residential neighborhoods where noise complaints are a concern. Its 8.5-hour runtime at half load also means fewer refueling interruptions during extended outages or overnight use.

Choose the A-iPower SUA4300iD if portability is your top priority. At 54.8 lbs, it's remarkably light for a dual-fuel inverter in this wattage range. You can realistically carry it to a campsite, toss it in a truck bed solo, or store it on a high shelf without much trouble. It still delivers a very capable 3450 running watts, which is enough to handle most of the same loads the WEN can. The tradeoff is a slightly higher noise level at 62 dB and marginally less starting power, which could matter if you're trying to kick-start a large appliance or compressor.

Both generators share the convenience of dual-fuel capability, letting you switch between gasoline and propane depending on availability and storage preferences. Both also produce clean inverter power, so laptops, phones, and other sensitive devices are safe to plug in directly. The warranty coverage is identical at three years, so neither brand asks you to take on more risk than the other.

Verdict & recommendation

If keeping weight down is essential for how you'll use your generator, the A-iPower SUA4300iD at 54.8 lbs is the clear choice. It sacrifices very little power to save you nearly 45 lbs, and that difference transforms the ownership experience for anyone who moves their generator regularly.

If your generator will mostly live at home or in an RV bay, the WEN DF451i earns its extra weight with a bit more power, quieter operation at 58 dB, and strong runtime at half load. It scores higher overall and delivers a more polished experience for stationary or semi-stationary use.

Ultimately, both are capable dual-fuel inverter generators with identical warranty coverage. Your decision should come down to whether you value portability or quiet, sustained power more in your day-to-day use.