Narwal T10 Review: An Awesome Hybrid Robot Hobbled By A Terrible ...

The Narwal T10 is only a little less exciting as a vacuum. Having spinning brushes on both the left and right sides of the vacuum means it does a better job of edge cleaning than vacs that have just one brush. On the downside, Narwal claims maximum suction power of 1,800Pa; compare that to the $700 Roborock S6 MaxV vac/mop hybrid, which claims 2,500Pa of suction.

Narwal does pack a big battery inside this device: 5,800mAh. During my several weeks of testing, the robot never needed to return to its base to recharge its battery while vacuuming my 2,800-square-foot home, which has a mix of bamboo floors, porcelain tile, wall-to-wall carpeting, and several area rugs. The vacuum has only two power settings—Normal and Power—but both are remarkably quiet.

Michael Brown / IDG

The T10 uses a LIDAR-based SLAM navigation system. The former acronym stands for “Light Detection and Ranging,” which means the robot uses a pulsed laser to measure the distance between it and nearby obstacles. The latter acronym stands for “Simultaneous Localization and Mapping,” which means the robot creates—and updates—a map of its surroundings while keeping track of where it’s located on that map.

The robot did an excellent job of mapping my home. It quickly learned which obstacles it needed to avoid, and it was physically low enough to fit underneath all but the lowest furniture in my house (it did get stuck under a china hutch on the far edge of a thick area rug, but I solved that problem by drawing a no-go line at that location).

Michael Brown / IDG

Greatness nearly undone by a mess of an app

The Narwal T10 is a great mop and a very good vacuum; unfortunately, it’s nearly undone by an app that’s a bit of a mess. You can’t use the robot without the app, so don’t buy this robot vac/mop hybrid unless you’re willing to tolerate a steep learning curve—and a few bugs. I’ve concluded that the labor-saving benefits here are worth the pain, but my job has me learning and mastering new things almost every day. If you’re more of the “I just want it to work” mindset, steer clear of this product.

Michael Brown / IDG

Here’s what I’m talking about. Once the robot has drawn a map of your home, you’ll want to partition it into rooms, so that you can spot clean instead of cleaning the entire house every time. You do this by opening the map, clicking on the partition button, and then drawing a line with your fingertip to divide two adjacent rooms.

But when I tried to save my partitions, I was repeatedly presented with an error message that read “Kind reminder: Setting save failed. Please check the network and try again.” I was ultimately able to create about a dozen partitions, but only by tapping a deep well of patience.

Here’s a related irritation: You’ll want to give each room a familiar name. When you do this in the app, you’ll discover that there are just 12 names to choose from—you can’t create custom names or change any of the presets.

And some of the available names are just…strange. You can’t label the room where you eat your meals “dining room,” but you can call it “restaurant.” There is a “kitchen” label, fortunately. You can name your master bedroom as such, but you can have only one other bedroom, and it will be labeled “secondary bedroom” or “children room.” You can have a “study,” but not a home office; and you can have a “living room” but not a home theater, great room, or rumpus room. You can have only one bathroom. Your remaining choices are “cloak room,” “corridor,” “balcony,” and “other.”

Michael Brown / IDG

Once your rooms are defined, the robot can vacuum or mop them individually, but you’ll need to use the app for that—there is currently no support for Amazon Alexa or Google Assistant. On the bright side, the map tracks the robot’s progress and its current location in real time.

Should you still lose track of it, you can press a “Locate” button in the app and a recorded voice emanating from the robot will say “Hello, I’m always at your service.” You can tap this button repeatedly until you find the robot.

You can of course program the robot to clean on a schedule—with separate programs for vacuuming and mopping. But you’ll need to gain an understanding of Narwal’s idiosyncratic menu language before you can do that.

On your home’s map, you’ll tap a “Devices” button and then click “Time Plan” on the menu that appears. Click a plus symbol to add a schedule and then set your local time zone according to city and country. No matter how many schedules I created, setting my time zone as Los Angeles, United States, the app always defaulted to the Hong Kong, China time zone.

Michael Brown / IDG

Next, you’ll spin a dial to set the time (hour and minutes, based on a 24-hour clock), choose a “Repeat” setting (your choices are a radio button labeled “Once” and radio buttons for each day of the week—you can choose more than one of the latter), select your cleaning plan, and finally—and most importantly—click on the Chinese letters in the middle of the page. I have no idea what that button says, but I learned the hard way that if you skip that last step, the vacuum will still operate according to your schedule, but it will start at the zero hour (midnight).

Still worthy of a ‘buy’ recommendation

If it wasn’t for that problematic app, the Narwal T10 would be an easy editors’ choice pick. Its vacuum module is strong, quiet, and fast; its mopping module is more effective than any hybrid device we’ve tested; it’s equipped with a big, long-lasting battery; and its self-cleaning feature is like nothing else in the industry. But as I said at the outset, you can’t use it without the app, and the app is something of a mess.

In the end, you’ll need to decide if all of the Narwal T10’s great features are worth putting up with a crappy app. I suppose your irritation will moderate once you overcome that frustrating learning curve. Just don’t forget that patience is not the only the price of admission here. This robot costs $1,199.