LOKITHOR J401X Portable Jump Starter 2500A Peak with -40°F Smart Pre-Heating for 8.5L Gas/6.5L Diesel

Sorry for the lousy photos but as you can see the lokithor has 2 relays wired in parallel for redundancy and heavier duty battery cable connections then the Gooloo. The lokithor cables are heavier gauge (6awg aluminum wire) vs (8awg aluminum wire) and have better designed clamps.
The overall dimensions and weight are similar between the two units even though the gooloo is advertised at almost twice the capability. So I am assuming output is similar though I did not verify. Lokithor has the flash light on the same side as the clamps and it is brighter than the Gooloo.

The gooloo has slightly better fit and finish. A dedicated boost button and error code chart on the back of the unit. I will have to make my own cheat sheet from the owners manual for the lokithor as the unit is not intuitive.

Overall the lokithor features are nicer and hopefully the unit is going to be more reliable. Only time will tell.

Much bigger than I was expecting! I bought this to replace my old one that the batteries are swelling up on. This new one is easily 2x the size of my old one. No necessarily a bad thing as it will be able to jump better. The light on this is super bright! Would be helpful in certain situations. There are a couple things I would change. It should come with a case, whether it’s soft or hard, just something to keep everything together. Also, should include a brick to charge. Overall would recommend, just be aware of how large it is.

Compared to lead acid battery car starters, this product is light and compact. It has the further advantage that it can be easily stored in a trunk without taking up much room. It has a wide operating temperature range, so it can be left in your car in sub-freezing weather because it has a built on heater for the lithium-ion batteries inside it’s case.
The product also has a built-in flashlight capable of a steady white light or quick or slow flashing red light.
In addition to starting cars, the product can charge your iPhone or power other devices via the included USB cord. The product is packaged in an attractive box perfect for giving as a gift for the person who has everything.
Operating the device is simple provided your battery has a partial charge. There is a separate procedure involving separate button combinations if your battery is completely dead. I consider this a drawback if it is in the dead of night in a parking lot and your car won’t start. The instruction manual is clear, but I question the need to refer to a instruction manual at the worst possible time.
Other than this, the product is a good solution and I am happy it will be in my trunk. It replaces a much larger lead acid starter and is a better solution for starting a vehicle.