GENMAX Portable Generator,1200W Ultra-Quiet Gas vs PowerSmart
Updated July 2026 — GENMAX Portable Generator,1200W Ultra-Quiet Gas wins on runtime, PowerSmart wins on power and weight.
The GENMAX Portable Generator is a more economical and lightweight option, while the PowerSmart offers higher power output and dual fuel versatility.
Why GENMAX Portable Generator,1200W Ultra-Quiet Gas is better
Price
GENMAX is $170 cheaper
Weight
GENMAX weighs only 25.3 lbs
Noise Level
GENMAX operates at 58 dBA
Why PowerSmart is better
Power Output
PowerSmart provides 3800 surge watts
Fuel Versatility
PowerSmart can use both gasoline and propane
Safety Features
PowerSmart includes additional safety features
Overall score
Specifications
| Spec | GENMAX Portable Generator,1200W Ultra-Quiet Gas | PowerSmart |
|---|---|---|
| Starting Watts | 1200 | 3800 |
| Running Watts | 1000 | 3300 |
| Fuel Type | Gasoline | Dual Fuel |
| CO Sensor | Yes | Yes |
| Warranty | 3 years | 0 |
Dimension comparison
Overview of the GENMAX Portable Generator and PowerSmart Dual Fuel Inverter Generator
The GENMAX Portable Generator is priced at $279.99, while the PowerSmart Dual Fuel Inverter Generator retails for $449.99, making the GENMAX about 38% cheaper. This significant price difference can influence buyers looking for budget-friendly options. Both generators serve specific needs, such as backup power for home use and camping, but they come with different features and capabilities that cater to varying preferences.
Power Output Comparison
The GENMAX Portable Generator provides 1200 starting watts and 1000 running watts, which is suitable for small electronics and appliances. In contrast, the PowerSmart generator offers a more robust power output with 3800 surge watts and 3300 rated watts when using gasoline, and 3500 surge watts and 3100 rated watts when powered by propane. This makes the PowerSmart generator a better option for users who require more power for larger appliances or multiple devices simultaneously.
Fuel Versatility
One of the standout features of the PowerSmart generator is its dual fuel versatility, allowing users to switch between gasoline and propane easily. This flexibility can be vital during emergencies or in remote camping situations where fuel options may vary. The GENMAX, on the other hand, operates solely on gasoline. This limitation may not appeal to users who prefer the convenience of dual fuel options, especially when considering long-term use or fuel availability.
Noise Levels
The GENMAX Portable Generator is notably quieter, operating at just 58 dBA under 25% load, which is comparable to the sound of a quiet conversation. In contrast, the PowerSmart generator operates at 70 dB at 23 feet, which is louder and may not be ideal for quiet environments such as campsites or residential areas. For users prioritizing a peaceful atmosphere, the GENMAX offers a clear advantage.
Portability
Weighing only 25.3 pounds, the GENMAX Portable Generator is one of the lightest in its class, making it exceptionally easy to transport. In comparison, the PowerSmart generator weighs 50.7 pounds, which may be a consideration for those needing to carry their generator over longer distances. The lightweight design of the GENMAX is particularly beneficial for camping trips or outdoor activities where mobility is key.
Safety Features
Both generators emphasize safety but with different approaches. The GENMAX includes a CO Detect shutdown sensor to prevent carbon monoxide poisoning, alongside other safety indicators like a low oil alarm and overload alarm. The PowerSmart generator also features a CO sensor that automatically shuts down the unit if dangerous levels are detected, along with overload protection and low-oil shutoff. Both models provide essential safety features, but the presence of a CO shutdown sensor in both generators gives consumers peace of mind during operation.
Runtime Efficiency
The GENMAX Portable Generator boasts an impressive runtime of up to 6.5 hours at 50% load, thanks to its Eco Mode feature that maximizes fuel efficiency. Meanwhile, the PowerSmart generator’s runtime specifics are not detailed, but its dual fuel capability may provide flexibility in usage duration depending on the fuel source. Users seeking long operational times without frequent refueling may find the GENMAX more suited to their needs due to its specified runtime efficiency.
Price Consideration
With a price difference of $170, the GENMAX Portable Generator is the more economical choice at $279.99 compared to the PowerSmart's $449.99. This price difference represents about a 38% savings, making the GENMAX particularly appealing for those who need a reliable generator without breaking the bank. The lower cost coupled with its lightweight and quiet operation makes it a compelling option for budget-conscious consumers.
Which should you buy?
Choosing between the GENMAX Portable Generator and the PowerSmart Dual Fuel Inverter Generator ultimately depends on your specific power needs and preferences. If you require a lightweight, quieter generator that is cost-effective, the GENMAX is an excellent choice. However, if you need higher power output and the versatility of dual fuel options, the PowerSmart may be worth the extra investment. Both generators offer essential safety features, but their different strengths cater to distinct user requirements.

