Why you can trust ZDNET
:ZDNET independently tests and researches products to bring you our best recommendations and advice. When you buy through our links, we may earn a commission.Our process
'ZDNET Recommends': What exactly does it mean?
ZDNET's recommendations are based on many hours of testing, research, and comparison shopping. We gather data from the best available sources, including vendor and retailer listings as well as other relevant and independent reviews sites. And we pore over customer reviews to find out what matters to real people who already own and use the products and services we’re assessing.
When you click through from our site to a retailer and buy a product or service, we may earn affiliate commissions. This helps support our work, but does not affect what we cover or how, and it does not affect the price you pay. Neither ZDNET nor the author are compensated for these independent reviews. Indeed, we follow strict guidelines that ensure our editorial content is never influenced by advertisers.
ZDNET's editorial team writes on behalf of you, our reader. Our goal is to deliver the most accurate information and the most knowledgeable advice possible in order to help you make smarter buying decisions on tech gear and a wide array of products and services. Our editors thoroughly review and fact-check every article to ensure that our content meets the highest standards. If we have made an error or published misleading information, we will correct or clarify the article. If you see inaccuracies in our content, please report the mistake via this form.
The Legee 688 is sold as a four-function robot. It will vacuum, wipe, spray the floors with cleaning solution, and mop. Unlike other two-in-one robot vacuums, the mopping pad oscillates backward and forward 600 times per minute to deliver a scrubbing action whilst the single side brush sweeps dust into its 500ml dust bin.
Its 320ml tank is non-removable. You need to fill it up using the handy bottle and nozzle provided. Hobot reckons that the tank will clean up to 150m2 from one tank.
To navigate around the room, the Legee 688 uses three lasers positioned in the side of the robot to calculate distance from objects.
Instead of navigation wheels, the Legee uses caterpillar tracks to prevent it from slipping when it encounters wet floors. It makes the movement jerkier than a wheeled robot, but it certainly does not slip.
In use, the Legee 688 has a stop-start action which makes you think that you have used an incorrect setting. The 688 stops, sprays water on the floor and starts to vibrate again. It is quiet too at 62dB and is hardly noticeable in use.
The Legee 688 has a remote control and an app. The remote control has a kitchen setting. This setting sprays extra water onto the floor before mopping the area twice. If you have a large floor to cover, the Legee will clean and mop one section of the floor before moving to the next section.
The manual, combined with the images on the box gave an excellent indication of the 688's capabilities and how to use the robot. The Legee 688 also has an app.
I tried three different phones, including my trusty Samsung which connects to everything but could not connect to the app -- regardless of whether I tried to connect using my .co.uk email address or my hotmail.com address.
I tried for almost three hours -- when the Legee was fully charged. Although each phone could see the Legee 688 in my saved networks, and the Wi-Fi router I connected to was broadcasting at 2.4GHz, the app on each phone showed that the Hobot was out of range.
This happened even when it was lying on top of the robot when it was trying to connect. This is the 24th robot vacuum I have reviewed, and some of the apps across several different manufacturers just will not connect.
Perhaps the app is optimized only for iPhone connection -- not Android devices. I gave up and continued with the remote control unit.
The app, if I had been able to connect to it, would have offered seven pre-set cleaning modes including standard, strong, eco, kitchen, dry, pet, and polish.
The remote control modes include kitchen, dry, standard, and strong as well as auto, and edge cleaning. The Legee's 3,000mAh battery will deliver up to 90 minutes cleaning time before returning to its dock
I felt that the Legee 688 cleaned a dirty floor better than the Ecovacs Deebot T8 accessory I reviewed in September. It certainly removed fresh muddy paw prints on its first pass over the floor. It certainly seems to clean soiled floors far more thoroughly than previous models I have reviewed.
Another issue is the robot docking area. Other two-in-one robots have a plastic base for the robot to sit on when it is in the charging dock. The Legee 688 does not. This will be an issue if you have porous floors as the damp mop will stain the floors when it docks.
However, without an app, or a user guide my use of the Hobot Legee 688 was guided by guesswork and experience of reviewing a lot of other robot vacuums. You might not be so lucky.
It is such a shame that such a great mopper like the Hobot Legee 688 has been let down in this way. Hopefully, this will quickly be remedied so you can try this superb little robot mopper and sweeper.
The Hobot Legee 688 is a superb little robot mopper and sweeper with an innovative shape and a range of functions -- if only you could connect to the app.