Anker 521 Portable Power Station Upgraded with vs PowerSmart
Updated July 2026 — Anker 521 Portable Power Station Upgraded with wins on warranty and ports, PowerSmart wins on capacity and noise.
The Anker 521 is a cost-effective and portable solution for smaller devices, while the PowerSmart generator offers greater power capacity and safety features for extensive use.
Why Anker 521 Portable Power Station Upgraded with is better
Price
Anker 521 is $250 cheaper
Portability
Anker 521 is lightweight and compact
Charging Options
Anker 521 has 6 diverse ports
Why PowerSmart is better
Power Capacity
PowerSmart can output up to 3800 surge watts
Safety Features
PowerSmart includes a CO sensor
Noise Levels
PowerSmart operates at 70dB, quieter than traditional generators
Overall score
Specifications
| Spec | Anker 521 Portable Power Station Upgraded with | PowerSmart |
|---|---|---|
| Peak Power | 600W | 3800W |
| Fuel Type | LiFePO4 | Dual Fuel |
| Run Time | Limited | Extended |
| Safety Features | Basic | Advanced |
| Charging Speed | Fast | Stable |
Dimension comparison
Overview of the Anker 521 Portable Power Station
The Anker 521 Portable Power Station is priced at $199.99, making it a cost-effective option when compared to the PowerSmart 3800 Watt Dual Fuel Inverter Generator, which retails for $449.99. This price difference of $250 demonstrates that the Anker model is approximately 44% cheaper. Designed with a LiFePO4 battery, it boasts a 256Wh capacity and offers robust support for high-wattage devices up to 600W peak. Its lightweight and compact design makes it ideal for outdoor adventures and emergency situations.
Power Capacity and Performance
The Anker 521 offers a peak output of 600W, which is suitable for powering various devices during outdoor activities or power outages. In contrast, the PowerSmart generator provides dual fuel versatility with a maximum output of 3800 surge watts when using gasoline and 3500 surge watts with propane. This means that while the Anker is excellent for smaller devices and short outings, the PowerSmart is better suited for larger appliances and extended use, showcasing its capability for home backup and camping scenarios.
Portability and Design
When it comes to portability, the Anker 521 weighs significantly less than the PowerSmart generator. The Anker is designed to be lightweight and compact, making it easy to carry for outdoor use. In contrast, the PowerSmart generator weighs 50.7 lbs and has a larger footprint, which can limit its portability. However, the PowerSmart’s design is still compact for a generator, measuring 21.9 x 13.4 x 19.5 inches, but it may not be as convenient for on-the-go situations as the Anker.
Charging Options
The Anker 521 excels in providing multiple charging options with six ports, including two AC outlets, two USB-A ports, one USB-C port, and one car outlet. This versatility makes it an ideal charging hub for various devices during trips. Conversely, the PowerSmart generator focuses on delivering clean, stable power for sensitive electronics through its advanced inverter system. While it might not provide as many ports, it is designed to safely charge devices such as smartphones and laptops without risking voltage spikes.
Noise Levels
One of the standout features of the PowerSmart generator is its whisper-quiet operation, rated at just 70dB at 23 feet. This makes it suitable for use in quiet environments like campgrounds and residential areas. The Anker 521, while not specifically rated for noise, is generally quieter than traditional fuel generators. For users prioritizing noise levels, the PowerSmart offers a significant advantage, making it a more suitable choice for scenarios where noise is a concern.
Safety Features
Safety is a crucial aspect of both products. The PowerSmart generator includes a built-in Carbon Monoxide (CO) sensor, which automatically shuts off the generator if dangerous CO levels are detected. This adds an essential layer of safety for users. The Anker 521, while lacking a CO sensor, does offer a worry-free 5-year warranty and features advanced temperature control to maintain a safe operation. Buyers should consider the importance of safety features based on their intended use.
Price Comparison
At $199.99, the Anker 521 is less than half the price of the PowerSmart generator, which costs $449.99. This price difference of about 44% may appeal to consumers looking for a budget-friendly power solution, especially for casual outdoor use. However, the PowerSmart’s additional features and higher capacity may justify its higher price for those who need a more robust generator for extensive power needs or emergency home backup.
Which should you buy?
Choosing between the Anker 521 Portable Power Station and the PowerSmart 3800 Watt Dual Fuel Inverter Generator ultimately depends on your specific needs. If you require a cost-effective, portable solution for charging smaller devices during outings or emergencies, the Anker 521 is an excellent choice. However, if you need a powerful generator that can run larger appliances and offers dual fuel options with advanced safety features, the PowerSmart generator is worth the investment. Your decision should align with your power requirements, budget, and intended use environment.

