Water Tech: iVac350Li or Pool Blaster Max Li?

[jorivesud]

Looking at getting one of these 2 from Water Tech: iVac350Li or Pool Blaster Max Li.
Any opinions, comparison?
iVac350 is slightly cheaper in price, and according got water tech rating: iVac 350 as power rating of 520 and Max Li of 365 but not sure which is best design and would last longer.

 

[JoyfulNoise]

Aiper also makes a cordless vacuum for pools. I was thinking of getting one for my spa.

 

[jorivesud]

Aiper also makes a cordless vacuum for pools. I was thinking of getting one for my spa.

The handheld Aiper does not seem as powerful as the Water Tech, but I looked at Aiper cordless robot and could be at similar price to the iVac350Li or Pool Blaster Max Li. But, would the robot pick up acorn. It seems like acorn would only be pushed away and not picked up.