Not everyone needs a 1,000Wh beast. For day trips, work-from-cafe setups, or a small emergency kit, compact power stations in the 250-300Wh range hit the sweet spot. The EcoFlow River 2 and Anker Solix C300 are two of the best options in this category.
Size and Weight
Both units are designed to be portable first. The Anker Solix C300 is remarkably compact and weighs just 7.7 lbs. The EcoFlow River 2 is slightly larger at 7.7 lbs as well, but with a boxier form factor that takes up more space in a backpack.
The Anker's integrated carry handle and rounded edges make it the easier grab-and-go option for travel.
Performance
The River 2 delivers 256Wh of capacity with 300W continuous output. The Solix C300 packs 288Wh but tops out at 280W continuous. In practice, both can charge laptops, phones, and small electronics without issue. The River 2's slight output edge lets it handle a few more demanding USB-C fast-charge devices simultaneously.
Charging
This is the River 2's biggest advantage. EcoFlow's fast-charge technology fills the River 2 from 0 to 100% in about 60 minutes via AC wall outlet. The Solix C300 takes roughly 90 minutes for a full charge. That 30-minute gap can make a real difference when you are packing up in a hurry.
Both units fall under the 300Wh limit that most airlines allow in carry-on luggage. Check your specific airline's policy before flying.
The Verdict
For a compact unit that charges fast and delivers solid output, the River 2 is the better pick. The Anker Solix C300 is a strong alternative if you prioritize the smallest possible footprint and slightly more capacity. Both are excellent choices for light-duty portable power.
Related reading: Read the full EcoFlow River 2 review and Anker Solix C300 review. Looking for budget options? See our best budget power stations under $300 roundup. Need help picking the right size? Use our sizing guide.