OKP K4 Robot Vacuum, Robotic Vacuum Cleaner

I have at least 7 of these grey ones. I've gotten rid of all the Eufys that I started with. THIS REVIEW IS FOR THE GREY ONE ONLY. The OKP K4. It sucks up at 3600 pa, and that is A LOT of power. NO BRUSH to clean. Extremely simple. [And I have two golden retrievers and four cats.]. My whole house is set up for automatic vacuums. So they never get stuck, because I've worked out all the getting stuck areas. I don't map. Or use the app. What's important to me is that my over 2000 square foot house gets clean. I turn them on, on each floor when I leave to work out. When I come back, all the floors are clean. I'm gone for about two hours, and they run at least that long. They use random movement because I don't map. But they run so long, they eventually get everywhere. As a PS: not having to clean brushes is BIG TIME. I do meticulously tap the dust out of the filters every single time, and change them once a week. YES, YOU CAN WASH THEM OUT -- very easy and non-time consuming. And these vacuums are cheap !! I've tried the others -- don't get them, they're not powerful enough. But these grey OKP K4's are the bomb.

This OKP vacuum was purchased by me on 7/2/23. Vacuum worked satisfactorily and performed well up until late May 2024, wherein the vacuum no longer appeared to be charging - so the vacuum is currently not operational. Power switch would go on for a moment before turning red and proceeding through a series of beeps. I contacted OKP technical support on 5/29/24 via email to resolve the problem with this vacuum no longer working. Email communications continued through June 2024 and are continuing as of today (July 11, 2024) trying to resolve the problem with my OKP not working. Through the process of elimination, one replacement part was forwarded to me and has been replaced and multiple pictures of the internal workings have been exchanged as technical support continues to troubleshoot the problem. The latest communication from technical support indicates that a new battery for this OKP is needed (cost approx $45 at my expense). However, our email communications that started in May 2024 regarding this problem have now gone beyond the 7/2/24 one-year warranty period, and my discussions are currently ongoing with technical support as to whether or not a new battery will be provided to me to resolve the problem with my OKP since we started the process well within the warranty period. Technical support has been good up to this point but now we are at a standstill about the battery being provided. I am hopeful that they will provide the battery under their 1-year warranty program since this process started well inside the provided warranty period. I will provide an update to this review - either good (they sent the battery) or bad (they refused to honor the warranty), once this matter has been resolved. So currently, my OKP is sitting in a corner — not operational. I will post a follow-up once this matter is resolved. As of today (7/15/24), I have been advised that a battery has been shipped.Update 7/28/24. A new battery was received as promised (minus instructions). But able to figure out how to change the battery - relatively simple. Was so excited to see the blue power light come on. My OKP K4 is now working once again. :):):). Kudos to their technical support, who did not give up on trying to resolve this problem even after the warranty period expired, keeping in mind that this problem started within the warranty period.

I’ve tried at least 3 different robot vacuums in the last 6 months (including the really fancy expensive brands, and an earlier version of this brand) and this one is the best. I got a defective one at first but once I exchanged it, now I like it.Mark Suckerberg is a little workhorse. On wood(well, vinyl that looks like wood) he does a good job with dog hair and pieces of food and whatever other junk you track in or drop.Nothing has ever caused him to get stuck. The really expensive brand got stuck quite literally every 10-15 minutes and would just…stop working when it felt like it.He doesn’t smash into walls, he senses them and avoids them.Yeah the random cleaning pattern can be kinda annoying but there is a decent row cleaning setting as well. Also spot clean is nice.Does decently on very very low pile carpet(think motel carpet). When I want to clean my room with low pile carpet I just lock him in there on high suction for 45 minutes and he picks up a lot of dog hair.I didn’t even realize there was a little mopping function on it until I got it. It’s not the same as scrubbing your floors or anything, but it’s a nice little feature if you want it. If you don’t, just don’t use it.The battery life is fine. Not groundbreaking, but it’ll go for an hour or so and then go to it’s home. Or try at least—sometimes it has a hard time, but it still manages to find its dock quicker and more often than the expensive one did.Can you tell how much I like this one over the expensive one yet?I should mention that I’m in a 1bdrm apartment but have a very furry and sheddy dog. This guy would certainly not be ideal for a giant house, unless you buy an army of them (which would either be adorable or terrifying….) but it’s nice for a smaller space.The only downside to this guy is that there’s no remote, you can only use the app which is annoying. I like the remote the old one came with, because you can easily direct it one way or another, etc. without messing around with your phone. The app is okay but pretty clunky and I don’t know why they stopped with the remote.But all in all, I like this dude and would recommend.