Which one runs a refrigerator?

The C2000 Gen 2. Anker rates it for up to 32 hours on a dual-door fridge, and its 4,000W peak starts the compressor. The C800X's 1,600W SurgePad is too low for most full-size fridges.

Which is easier to carry camping?

The C800X at about 24 lb. The C2000 Gen 2 is 41.7 lb, which is a two-hand lift. For tent or car camping with phones, lights, and a laptop, the C800X is the practical pick.

The C2000 Gen 2 is rated for 4,000 charge cycles against 3,000 for the C800X, so it should hold capacity longer. Both use LiFePO4 chemistry, which is the durable type.

Is the C2000 Gen 2 worth stepping up to?

Yes if you need to power a fridge, well pump, or space heater, or want to add capacity later. If your loads are small devices and camping gear, the C800X covers them at a fraction of the weight.

Can either run a space heater or power tools?

The C2000 Gen 2 can run many space heaters and power tools on its 2,400W rated output. The C800X's 1,200W rating limits it to smaller tools and low-wattage heaters.

How fast do they recharge from solar?

The C2000 Gen 2 accepts up to 600W of solar and reaches full in about 1.8 hours. The C800X caps at 300W, so solar charging takes roughly twice as long.

Anker SOLIX C2000 Gen 2 vs Anker SOLIX C800X Portable Power Station

The C2000 Gen 2 is the stronger unit: 2,048Wh, 2,400W rated with 4,000W peak, 4,000 cycles, and expansion to 4kWh. The C800X is smaller and lighter at 768Wh and 1,200W, with 3,000 cycles and a built-in camping light. Owners rate both well, the C2000 slightly higher. Buy the C2000 for whole-home backup or big appliances; buy the C800X for camping and light backup where weight matters.

Choose the C2000 Gen 2 if you need to run a fridge, well pump, or space heater, or want room to expand capacity later.
Choose the C800X if you want a grab-and-go pack for camping and small devices that one person can lift.

Prices

Anker SOLIX C2000 Gen 2: $1,817.42 at inpexopcion.com (checked today)
Anker SOLIX C800X Portable Power Station: $449.99 at Best Buy (checked today)
Difference: the Anker SOLIX C800X Portable Power Station is $1,367.43 cheaper than the Anker SOLIX C2000 Gen 2 today