(Upgraded 2026) Nautilus Titan Wi-Fi Automatic Robotic Pool Vacuum Cleaner Waterline Scrubbing, Multi-Layer Filtration, Ideal for Inground Pool up to 50 FT in Length

I bought this a month ago after researching a set of options (including the Dolphin Sigma and various other sub-$1000 robots). I wanted to give it a few weeks before I wrote a review and try it out, and I have to say I'm glad that I bought this (even at the higher price). Getting going was pretty easy. Could this have used a better user manual? Sure, but I had it up and running in about 30 mins. I wasn't sure how to "diagonalize" the float handle out of the box (see below) but just tried it at max diag. The controls (on the app) for setting a cycle, monitoring progress, etc. are fairly simple to use, and complete enough for everything I need to do. It is true that the "drive by app" feature isn't great -- it has a 2 second lag between command and actuation, but once you know that, you can get it to the place you want to go if you have a tough spot you want to hit manually. And you can start it from anywhere using your phone once it is tied into your WiFi, I start mine from the grocery store or wherever. In terms of cleaning, this thing is really pretty excellent, honestly my pool has never looked so good with so little effort, and this in the dead of winter when my pool is typically full of leaves, twigs, dirt, and other assorted muck. This robot has probably saved me about 2-3 hours per week (if not more) of sweeping and vacuuming my pool, which is a 25K gallon in-ground rectangle with some curve-y sides. the 2.5 hour cycle I have been running once every other day or once per day when I think about it and that seems to cover the entire thing. The robot climbs walls pretty effectively and does wall cleaning. There are adjustments for the "float handle" for putting that in place to make the robot either "stay high" on the walls for extended time or not. I have put it on the highest setting, and it seems to "crawl" along the water line (cleaning as it goes) for about 2-6 feet on this setting. But most of the time it spends on the floor of the pool with forays up walls. I think that makes sense. A couple of points on cleaning (pros): * Both sets of filters seem to pick up fine dirt/sand (which I have a lot of) and I can't tell much of a difference. * Leaves-twigs-etc -- gets all of that stuff no prob * Cleaning the filters -- really simple, easy, takes 3-5 mins every few days. Way way easier than I used to do (pole-mounted vacuum, cleaning the sock filter a pain). I could probably clean these filters once a week or two, but I get a lot of stuff in my pool so I've been playing it safe * Goes over raised drain covers no problem. I was considering the cheaper Dolphin Sigma model but there were some comments that that model would get stuck on top of the covers. I wasn't sure if this model would have the same problem, but it doesn't -- goes right over them. * It also climbs curved concave and convex walls. This surprised me, I thought the laws of physics would preclude a concave wall climb, but somehow it has enough traction/suction to do just that. Nifty. Balanced issues (cons): * The robot will climb up steps (especially the deeper ones that are more "table-like") and clean those. But not very often and not consistently every cycle. I find I have to sweep some fine grit off the steps about once every week or two * Does the robot get "stuck" sometimes? Yes, I have one particular notch area in my pool where it will get itself jammed (lightly) in that notch and not be able to back out on its own. I'd say this happens once every 4 or 5 cycles, and I just gently pull it by the cable back away from that area and it goes back to cleaning the rest of the pool. Unknowns: * Can you really leave it in the pool for extended periods of time? I have left mine in so far for about a week at a time, but I'm not sure still if this will cause any long term harm. I try to take it out of the water for a "rest" a couple of days at a time once a week. Not sure if that is a good idea or a waste of time. I just hope this thing lasts. If I can get at least 18-24 months about of it, will be a huge win.

Yet another update: The second power supply has now failed. The first symptoms of the failure were that it had apparently "lost" its configuration and had to be re-adopted/re-connected to my WiFi network, the same as if it were a brand new unit. It lasted for 1 cleaning. The next time I tried to use it, it was in the same state only that time, despite attempting to re-connect it a half dozen or more times, it would not successfully connect to my Wifi network. Mind you, the power supply itself when in use sits less that 30 feet away, line of sight, from an outdoor Ubiquiti Unifi Pro access point that's also supporting multiple WiFi cameras that are several hundred feet away and are all working fine, so it's not a WiFi signal problem. Maytronics continues to pretend that they're not aware of chronic wide-spread problems with these power supplies. Revising this review again. I now truly regret this purchase and wish I have never seen this thing. Here's the latest: It's about a year old at this point, still in warranty. So far we've had one power supply go bad. It took a long time to get a replacement because they were out of stock. I assume because so many of them fail. I just dropped off the whole system at UPS to ship for more warranty work. Now we get nothing but error messages saying that the controller can't communicate with the robot. After talking with support they decided I needed to send the whole thing in (at my considerable expense) to the repair center in Georgia, still under warranty. Here's the telling part: As soon as I walked into the UPS store with that huge box, the counter person said, "That's a pool robot, isn't it?". Says I, "Yes, how did you know?" Counter person, "Because we get a LOT of those." All Maytronics? "Yep". Don't get me wrong, when it works it works really well, but with two big problems still under warranty and the initial cost, I tell you that dumb, simple pressure side Polaris we got with the pool is looking hard to beat. Further update: Checking the UPS tracking told me it arrived at their facility 7 days ago, yet I've heard nothing so I contacted them for a status. Here is what I was told: "• I see that your unit was delivered on 9/25/24. The unit has not been received in the system yet. Receiving is one week behind due to a surge of units coming in needing repairs. The turnaround time is 2-3 weeks after being received in the system. We appreciate your patience during this time. Once repairs are completed the unit is shipped back to you and a tracking email is sent. They also send an email letting you know when the unit is received in the system." So their receiving is at least a week behind, and service is at least 2-3 weeks behind. Why? Because of the number of units that have had problems severe enough to require them to be sent in for service. To quote a friend of mine: " It's h*ll when it's well, but it's sick ALL the time!" Original revision: After having lived with it for about a year now, I'm revising my review. Performance-wise, it works very well and I'm happy with the job it does. HOWEVER: Slightly less than 12 months in, the power supply has completely failed and will not power up at all. Contacting customer support, they agreed to ship me a new power supply with almost no questions asked. In fact it was SO easy that now I'm thinking that Maytronics must already be aware that their power supplies are plagued with frequent failures, especially considering some verbiage I found on their web site about the process for dealing with power supply problems. Also, although the robot itself can be operated without an internet connection or with their app on a smart phone, most of the features are not available without one or both of these. For instance, you can't set up a cleaning schedule, you can't alter the type or the duration of the cleaning cycle, you can't manually "drive" the robot around, and you can't get feedback about the condition of the filters. Their default mode of operation requires an active internet and wifi connection as well as a connection to the Maytronics servers. It's possible to switch the robot to communicate with the phone app over bluetooth, but that option is somewhat hidden in the menus and even in that mode, it's not clear whether or not the system still communicates back to Maytronics. (I could find that out via a Wireshark trace but so far, I haven't cared enough to do that.) I'm still happy with how well it cleans, but the "other stuff" above is now more of a concern to me personally. Original review: We have a large-ish 40,000+ gallon pool Likes: Does a thorough job. Filters relatively easy to clean. Being attached to a cable as opposed to wireless may seem like a con, but it means the suction motors can be stronger and more powerful than they could be if it were 100% wireless which means it does a good job. Climbs/cleans walls and cleans the waterline very well. Dislikes: The Android app used to control it does not have an 'exit' function. You can dismiss the app by using the 'home' button on your phone but the app will continue to run in the background which means it's still consuming memory and battery (and possibly sending who knows what information back to the Maytronics servers). To completely exit the app and stop it, one has to use the phones "force stop" function. (This is probably true of all Dolphin robot cleaners). When I reported this behavior to tech support, they seemed unconcerned and not willing to fix it so now that I know, I always just force stop the app when I'm done.

I love the dolphin cc pro. I was a bit hesitant given the price as I already had a polaris 3 wheeler that did a good job with leaves but floated around on the surface alot. The cc pro never floats around, it is always on the pool floor cleaning. I also had a perpetual problem of a general layer of dirt from leaf debris etc in my pool, you know it when you sweep and see it. Could never get it all out. Dolphin cc pro got out ALL of the dirt and ither nasties as well as leaves. It is super easy to use and the app works well also. I highly suggest you buy the ultra fine filters that did not come with this unit. They are around $100 (I bought a generic brand) but those filters really keep the collected dirt in the unit. The one thing that is weird is that it is a bit random on its floor pattern. It gets up everything and cleans the waterline, but it only runs for 2 hrs and I am not sure it is getting all of the waterline each time. You can run it with back to back sessions but I don't think it remembers where it went before. Not a huge deal but one thing. Lastly, my controller stopped working in the first week. Called the company and within a few minutes, they were shipping me a new one. So great customer service.

(SEE BELOW FOR UPDATE)Within 2 hours of receiving this pool cleaner and taking it out of the box, it stopped working. I would turn it on, it would turn off and light on power supply box turned red. Filters were not even close to full. My issue other than the machine not working was the lack of manual. I had to go to the website and "flip" through a digital book. For 1500 dollars you'd think there would be a physical owners manual. Even after looking through the manual AND google searching, I could find no information on what the different light colors meant, other than blue good/red bad. So other than checking filters I had no idea what to look for. Also, right of the bat it would not connect to the WIFI. I tried on 2.4 and 5. I get that there are defective products from time to time and when I called the number on their website the lady was very nice but I really wish they would have sent me a brand new cleaner seeing as this one was broken right from the start but instead I have to send this one to them for a repair attempt. After paying this much and it not working out of the box they should have sent a new one. I'll see how the repair goes and update this review if it works. If not then I'll be getting my money back and choosing a different product. (UPDATE)I left my original review for comparison with this update. As i stated before, the people i spoke with about the issues stated above were VERY nice, professional and actually reached out to me after my initial review to see what exactly had happened so they could put notes in for the tech that would be looking at my cleaner when they received it. She also sent me a link that would take me straight to the owners manual for my particular machine. I was pleasantly surprised by the phone call. I explained to them in detail what had taken place, she apologized about the trouble and assured me i would hear back from them soon as their tech took a look at it. Turns out there was an issue with the motor. So in this case, i had just gotten unlucky and received a bad unit. She called me back and let me know that it could not be repaired and they had another cleaner (brand new) sent out to me within 2 days from the call. I got that cleaner in the mail this morning and right off the bat i was able to link the unit with my wifi and after letting in soak in the pool about 30 minutes, i set it to do a deep clean cycle and it set off without issue and ran the entire cycle time without incident. So far i have had zero issues or complaints as it seems to do what it is supposed to do and does a wonderful job. I would like to thank the people that helped me out with this issue and wish all companies support staff operated like they do.

First, the unit does get wet, and it doesn’t randomly drive itself around the pool. Yes it sucks up stuff (that it actually finds by accident) and it does park itself against the wall close to the power unit. The robot itself is easy to work and easy to clean out. The added caddy is a great way to store it, and keep the cord untangled and ready for use. That’s about where it ends. The reason I paid so much more this unit compared to others was the ability to remote control the device and target specific areas of the pool as needed. I have a great pool with awesome water movement, so leaves tend to settle in very specific areas. I’d rather not wait a few hours to hope it drives over that area to get them sucked up. The app still has not been able to connect to the unit. Customer service in the US is a joke. I was told there’s a problem with the app so just wait a while and keep trying. Basically I take this as let’s wait until the return policy is expired and then you’re stuck with it. I was given troubleshooting steps that aren’t even options on this unit, frustrating as ever. For a unit that does manual only random cleaning it’s great, but if it doesn’t have the feature that’s advertised making it worth the extra several hundred dollars it costs, I might as well buy a cheaper unit that does the same thing. The seller was great, it shipped fast and came in with no delay and no visible damage. The unit does suck up leaves and it does get all the way up the walls. It did drive up the stairs out of the water , but it was able drive back down in lot the water and that by itself is rather impressive. If you are like me and wanted the remote control feature with the WiFi linking to clean the pool on demand. Don’t waste your money. But if you want really cool robot that does clean up stuff and you want to pay several hundred dollars more than the others so you can brag about spending so much, then this one is for you. **update**. Great support when you send a message via email to the customer center. I got nowhere with calling the US based support but got an immediate response from the email support team. Found my problem to be a faulty unit and they dispatched a replacement quickly. The app immediately connected with the replacement and all works fine. I will say the unit does work as advertised though the manual drive feature is not nearly as easy or useful as thought to be. It does allow me to at least guide the unit in the direction I’d like allowing me to get it into the ground or spots. I would recommend the unit given the ease of cleaning the unit and the great support by the manufacturer. If you are US based, I would recommend you not waste your time calling the US number for support, just send an email and get to the real support team. Not sure yet if the unit is much different from other units for a lower price, but the ability to schedule cleanings and start a cleaning cycle via the app even when I’m not home is useful. I like being able to jump online and kick off a cleaning cycle before getting home so it’s ready to swim shortly after getting home after a trip is handy.

This is my second Dolphin pool cleaner. The first one was awesome! It kept our pool spotless!! This year our first robot turned 5 and was starting to struggle a bit. It lost bands off of the wheels, but still cleaned pretty well. It was a no-brainer when it came time for a new one. These robots are worth their weight in gold. Now, the bad part. This model has the ability to communicate with a smart-phone. I can't tell you what the benefits of this are because I CANNOT connect to the device! At times, it finds the unit, but most of the time, it does not! Sometimes after it finds it, you hit next and it says "Disconnected". I've found out that this problem is at least 3 years old!! Of course I try to contact support. I seriously think that no one works at this place! I've called 3 days in a row and was on hold for over 2 hours each time! They say that they are experiencing long hold times, but it is statistically not possible to be that busy every single day!! They offer chat support on their website. It is powered by AI and unless you pick from the very few troubleshooting options, it says that it cannot recognize your free-form text!! Now, I have to go through the painstaking task of returning this robot. I can't get it to connect and it seems like the company doesn't care. I'm off to find the next great pool robot!! Hope this helps someone else to STAY AWAY from this ghost company!!

Update (11/2022) Power supply stopped working today. I contacted Maytronics and they shipped me a preplacement immediately. All in all, I'm starting to like this company. Yes, I've had a couple of issues, but Maytronics customer service has really come through for me. I honestly think at this point it would be unfair to give them anything less than 5 stars. I'm very impressed. I'd also like to state that out of the previous 3 pool robots I've owned, this model, by far, is the absolute best. It's still performing like a new machine and my pool stays spotless with a standard cleaning cycle every 3 days. ************************************** Update (8/12/22) Okay...First of all, apologies for not posting a follow-up to this review. I honestly had forgotten that I ever posted it. Sorry folks. After a couple of days of troubleshooting, I discovered the solution to my problem. Apparently my WiFi password was too long, (42 characters). After reducing it to 32, my Maytronics robot was suddenly able to talk to my network. Yes, I know 42 characters is an unusually long password, but in my defense, my other 30 or so wireless clients had no issues with it. If this limitation is documented in the manual, I couldn't find it. The app was no help either. So after a very rocky start, my robot has been performing exceptionally well for the last 2 years. Only maintenance has been the replacement of the climbing rings once a year. I'm almost due for new screens soon, but not quite there yet. Minor niggles would be the cord - After a 2.5hr run I have a twist or two that need tending. I also still have to brush my top step occasionally. Not big problems, but worth mentioning. All in all, I'm very pleased with my purchase and would have given it 5 stars without the WiFi hassle. Consider my 4 stars a solid 4.5. ******************************************* ORGINAL REVIEW: My unit will not connect to WIFI. I tried different access points and tried Android and Apple apps to try and finish the setup, but it will not connect. I called customer service and was on hold for 45 minutes. When the nice lady answered the phone and I explained what the problem was, she asked for my serial number and email address and said that she would send me a "troubleshooting tips" email so we can determine the problem. I was then put back on hold and several minutes later, I was disconnected. I called back and waited an hour on hold before giving up. (I was probably too angry at that point to carry on productive conversation anyway.) My only recourse now is to wait and see if they answer my tech support request that I submitted through their website, take a vacation day and call back again or try and set up an exchange through Amazon. The cleaner itself works great, but if you can't use the app, then you can't control the robot AT ALL. I honestly don't care about being able to steer the thing or anything fancy like that, I just want the robot to run on a schedule. Problem is, is that ALL the features are ONLY available through the app, which includes a simple cleaning schedule. There are no controls on the power supply whatsoever - just an on/off button, that's it. I don't want to come off as petty about my expectations of this product, but comon! - $1500 pool robots should not be having these issues. And locking every single control feature to an app without a backup method is just plain dumb. I should at least be able to have some fundamental control through bluetooth, (which connects fine, BTW), but apparently this robot needs to contact the mothership through WIFI before you can do anything with it. As for the handy "troubleshooting tips" email, it never arrived. I'm very disappointed with Maytronics.

I purchased the Dolphin Nautilus CC Pro Wi-Fi Automatic Robotic Pool Vacuum based on the overall reviews on Amazon as well as outside reviews/comparison of similar products. I didn't read the negative reviews and probably should have. The first few times I tried the Dolphin Nautilus CC Pro it would fail. I realized that it might have been that the filters weren't attached correctly. I fixed that and then I was able to get a full cycle (2 hours) of cleaning time. I let it go through another cycle as we have a large pool as it appeared it didn't cover everything. It appears to be a random pattern in hopes of covering a pool in 2 hours. No intelligence involved with the cleaning pattern. The Pool Cleaner did a great job. I was very pleased. For that I would have given it 5 stars, however . . . I tired it again about 5 days later. It appeared to be working but only got through about 90 minutes of the cycle. After that cycle I could not get it to start up again. I unplugged everything and waited a minute then plugged it back in. It started working again, but only for about 5-10 minutes before failure. I looked at the manual for troubleshooting hints. It talked about taking some things apart and cleaning them. I did an extensive cleaning and then let it sit overnight. In the morning I tried it again and I was able to get through a full cycle. I pulled it out of the water and cleaned everything like I did the previous night. I really wanted to make this work as it does do a good job. I stuck it back in the water pressed the Start button and it began its cycle. However, in less than 15 minutes I noticed it was dead in the water. After reading some of the "1 start" reviews I realize that what I experienced others have too. I am sorry it didn't work consistently. I fear that if I replaced it I would just have the same issue and did not want to take that chance. I decided to return it and will investigate another pool cleaner to purchase.