The catch
EcoFlow DELTA Pro 3
Weighing roughly 115 pounds, it is a wheeled home system rather than something to carry casually. Most circuit-level automation also needs additional EcoFlow hardware.
Side by side
EcoFlow DELTA Pro 3 vs Goal Zero Yeti PRO 4000: Yeti suits a 120V RV power plan, and DELTA supplies native 240V
Quick verdict
For home backup, the DELTA Pro 3 is the more flexible base, with native 120/240V output, deeper automation and broad integration. The Yeti PRO 4000 suits a 120V RV or van build, thanks to TT-30, strong regulated DC outputs and 3,000W solar.
Before you buy
Why, and what it costs you
Where these two really part ways
EcoFlow DELTA Pro 3 is the better match for “I need output that is natively 120V and 240V” and “I want to power chosen circuits in my home”. Goal Zero Yeti PRO 4000 is the better match for “Solar will be a real part of how I recharge” and “Battery cycle life needs to be long”.
Where this comes from
This lines up the current strong and useful fit ratings for the exact products. It does not roll them into one overall score.
The catch
Goal Zero Yeti PRO 4000
Because it only supplies 120V, it can’t run 240V home loads directly.
EcoFlow DELTA Pro 3
- Why pick it
- Your loads include 240V
- You want EcoFlow wired in at the circuit level
- The catch
- Weighing roughly 115 pounds, it is a wheeled home system rather than something to carry casually. Most circuit-level automation also needs additional EcoFlow hardware.
Goal Zero Yeti PRO 4000
- Why pick it
- Your whole system is 120V
- TT-30 and high-current DC come first
- The catch
- Because it only supplies 120V, it can’t run 240V home loads directly.
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What this page compares
At roughly 4kWh, one offers native split-phase home integration and the other specializes in 120V RV use.
This one comes down to voltage and capacity first, then to the limits of your own setup.
Which one fits
Pick the situations that sound like you
I need output that is natively 120V and 240V
EcoFlow DELTA Pro 3 lists “Native 120/240V” for voltage, while Goal Zero Yeti PRO 4000 lists “120V only”. For voltage, this can be a hard compatibility check against your power supply, connection and planned load.
- EcoFlow DELTA Pro 3
- Better fit
- Goal Zero Yeti PRO 4000
- Depends
I want to power chosen circuits in my home
It is part of an ecosystem that has a documented transfer panel or inlet path. A qualified electrician may be needed for installation.
- EcoFlow DELTA Pro 3
- Better fit
- Goal Zero Yeti PRO 4000
- Good
I want to monitor it remotely and set limits
Useful status, charge-rate, schedule or reserve settings are available through Wi-Fi or Bluetooth control.
- EcoFlow DELTA Pro 3
- Better fit
- Goal Zero Yeti PRO 4000
- Good
It will run beside a bed or desk
Low-noise behavior at light to moderate loads is documented by the maker or an independent test. Fans can still speed up during fast charging.
- EcoFlow DELTA Pro 3
- Better fit
- Goal Zero Yeti PRO 4000
- Depends
My priority is keeping food cold
Once you measure the appliance’s real cycling draw, its energy reserve and motor-start capability make it suitable for refrigerator backup.
- EcoFlow DELTA Pro 3
- Better fit
- Goal Zero Yeti PRO 4000
- Good
I need to connect to an RV directly at 30A
A documented TT-30 or comparable 30A outlet is included. Before connecting, confirm the voltage, current and your RV inlet.
- EcoFlow DELTA Pro 3
- Good
- Goal Zero Yeti PRO 4000
- Better fit
In practice
Differences you will notice
Where these two really part ways
EcoFlow DELTA Pro 3 is the better match for “I need output that is natively 120V and 240V” and “I want to power chosen circuits in my home”. Goal Zero Yeti PRO 4000 is the better match for “Solar will be a real part of how I recharge” and “Battery cycle life needs to be long”.
How we worked this out
This lines up the current strong and useful fit ratings for the exact products. It does not roll them into one overall score.
One of them covers more of your list
EcoFlow DELTA Pro 3 meets 3 of the 3 needs this comparison is built around. Goal Zero Yeti PRO 4000 meets 2 and misses “I need output that is natively 120V and 240V”.
How we worked this out
The count uses the current strong and useful fit ratings for these two products. Each need counts once, with no made-up score added on top.
How many models fit “I need output that is natively 120V and 240V”
5 of the 50 portable power stations checked fit this need. EcoFlow DELTA Pro 3 makes the cut. Goal Zero Yeti PRO 4000 does not.
How we worked this out
The count filters every model in the current category for a strong or useful fit on this single need.
Models that handle “I need output that is natively 120V and 240V” and “I want to power chosen circuits in my home”
5 of the 50 portable power stations checked handle both “I need output that is natively 120V and 240V” and “I want to power chosen circuits in my home”. EcoFlow DELTA Pro 3 makes the cut. Goal Zero Yeti PRO 4000 does not.
How we worked this out
You can reproduce the count by filtering the current category for models with a strong or useful fit on both needs.
Option A
EcoFlow, DELTA Pro 3
DELTA Pro 3
This refined, wheeled 4,096Wh station provides 4,000W output and native 120/240V, and it works with a wide range of batteries, panels and generators.
- Best for
- Well-rounded home backup from one unit, including 240V loads
Facts we checked
- 4,000W rated AC output, with 4,096Wh LFP capacity
- 10ms transfer mode and native 120/240V output
- Configurations documented up to 48kWh when expanding within EcoFlow’s ecosystem
Option B
Goal Zero, 37500
Yeti PRO 4000
This 3,993.6Wh 120V workhorse has a true TT-30 outlet, unusually strong 12V outputs and takes up to 3,000W of solar input.
- Best for
- RV and van setups where 120V and DC power come first
Facts we checked
- 3,600W rated and 7,200W surge AC output, with 3,993.6Wh LFP capacity
- 405W high-power 12V output, plus a TT-30R outlet
- Expansion to about 20kWh with Tank PRO batteries, and up to 3,000W solar input
Spec by spec
Where they really differ
| Spec | EcoFlow DELTA Pro 3 | Goal Zero Yeti PRO 4000 | In practice |
|---|---|---|---|
| Voltage | Native 120/240V | 120V only | For voltage, this can be a hard compatibility check against your power supply, connection and planned load. |
| Capacity | 4,096Wh | 3,993.6Wh | It determines how frequently you have to refill, empty or begin a new batch. |
| RV/DC focus | Broad home/RV ecosystem | TT-30 plus 405W regulated 12V output | For rv/dc focus, this can be a hard compatibility check against your power supply, connection and planned load. |
Trade-offs
What each pick costs you
With EcoFlow DELTA Pro 3
- How well X-Boost works depends on the load. For well pumps, HVAC and other 240V motors, check their nameplates and EcoFlow’s port limits to confirm they will start.
With Goal Zero Yeti PRO 4000
- Before its cart, the base unit weighs 115.7 pounds. Independent testing found the wheels work better on hard surfaces than on rough ground.
By the numbers
What the data shows
What we found across the portable power stations we compare, plus the checked facts behind each finding.
How many fit
Only 5 of the 50 models checked meet every need here: “I need output that is natively 120V and 240V”, “I want to power chosen circuits in my home”, and “I want to monitor it remotely and set limits”.
5 models fit, out of 50 checkedThe gap in numbers
EcoFlow DELTA Pro 3 lists 4,000 W for continuous AC output rating, 11% more than the 3,600 W on Goal Zero Yeti PRO 4000.
- EcoFlow DELTA Pro 3
- 4,000 W
- Goal Zero Yeti PRO 4000
- 3,600 W
- Models with this figure
- 47 of 50
Show the facts and the math
How we countedThe count uses each product's current fit ratings for “I need output that is natively 120V and 240V”, “I want to power chosen circuits in my home”, and “I want to monitor it remotely and set limits”. A need with no documented match is not counted.
How we calculatedFigures are the continuous output rating. Surge numbers and boost modes that lower voltage do not count. For context, 47 of 50 models publish comparable figures.
| Product | Needs it meets | Facts we checked | Sources |
|---|---|---|---|
| EcoFlow DELTA Pro 3 |
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| Goal Zero Yeti PRO 4000 |
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Ready to buy
See today’s price and what owners say
Open either model on Amazon for the current price, customer reviews and delivery options.
EcoFlow DELTA Pro 3
Your loads include 240V
See price & reviews on AmazonGoal Zero Yeti PRO 4000
Your whole system is 120V
See price & reviews on AmazonEach link opens in a new tab.
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