Which EcoFlow STREAM Should You Buy?
All current STREAM models compared. For most UK homeowners, the answer is clear — but here's the full breakdown.
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Side by Side
STREAM Model Comparison
| Spec | STREAM Ultra X | STREAM Ultra | STREAM Pro | STREAM Max |
|---|---|---|---|---|
| Approx. Price | £1,659 | £999 | ~£849 | ~£749 |
| Capacity | 3.84kWh | 1.92kWh | 1.92kWh | 1.92kWh |
| Solar Input | 2000W | 2000W | 1500W | 1000W |
| MPPTs | 4 | 4 | 3 | 2 |
| AC Output | 1200W | 1200W | 1200W | 1200W |
| Off-Grid Use | ✓ Yes | ✓ Yes | ✓ Yes | ✗ No |
| AC Charging | 1200W | 1050W | 1050W | 1050W |
| Weight | 38.8kg | 23.1kg | 22.8kg | 22.0kg |
| Warranty | 10 Years | 10 Years | 10 Years | 10 Years |
| IP Rating | IP65 | IP65 | IP65 | IP65 |
| Buy on EcoFlow | View → | View → | View → | View → |
Our Verdict
Which One Should You Get?
Best for Most People
STREAM Ultra X
Double the capacity of the others at 3.84kWh, maximum solar input (2000W), 4 MPPTs, and off-grid support. If you're only buying one, this is it. The higher upfront cost pays back faster due to the larger capacity.
View on EcoFlow →Good Starter Option
STREAM Ultra
Same solar input and MPPT count as the Ultra X, just half the battery capacity. A good option if budget is a concern — and you can always add a second unit later to expand capacity.
View on EcoFlow →Worth Knowing
STREAM Max — Skip It
The STREAM Max doesn't support off-grid discharging via the AC outlet — which limits its usefulness significantly for UK homeowners wanting a backup power option. The Ultra is a better choice at a similar price.
Read our full guide →