Gausium Phantas vs Tennant X4 ROVR
Researched by Riley Hart · prices checked Nov 9, 2026
As of Nov 9, 2026, the Gausium Phantas costs $29,600 and the Tennant X4 ROVR costs $49,382, so the Gausium Phantas is $19,782 cheaper. Pick the Gausium Phantas for tight offices, hotels and clinics. Pick the Tennant X4 ROVR for schools and stores that want US dealer service. The Gausium Phantas wins 2 of 2 points we can measure.
Who wins, point by point
The Gausium Phantas wins 2 of 2 points we can measure. Built from today's prices, the specs and independent tests for these two robots.
| Phantas | X4 ROVR | Winner | |
|---|---|---|---|
| Price today | $29,600 | $49,382 | Phantas |
| Runtime per charge | 4.5 h | 2.5 h | Phantas |
- You want to spend less (saves $19,782)
- You care most about runtime per charge (4.5 h vs 2.5 h)
- Best for tight offices, hotels and clinics
- Best for schools and stores that want US dealer service
- Cleaning path
- 465 mm
- Coverage
- 350 to 700 sq m/h
- Runtime
- 4.5 h scrubbing
- Rent
- $829/mo on a RobotLAB
Small four in one cleaner that fits 65 cm gaps and under tables
Full Gausium Phantas review, pros and cons →- Cleaning path
- 20 in
- Runtime
- Up to 2.5 h
Compact robot scrubber from a US floor care brand, fits 28 in aisles
Full Tennant X4 ROVR review, pros and cons →Side by side
| Gausium Phantas | Tennant X4 ROVR | |
|---|---|---|
| Price | $29,600 | $49,382 |
| 3 year cost | $29,600 | $49,382 |
| Our score | Not scored yet | Not scored yet |
| Rank in Commercial cleaning | #5 | #6 |
| Status | on sale | on sale |
| Warranty | n/a | 3 years per the Sweepscrub listing title; Tennant's spec sheet lists no term |
| Cleaning modes | Scrubbing, vacuuming, sweeping and dust mopping (Gausium) | Wet scrubbing with vacuum pickup, in robot mode or manual mode (Tennant and Sweepscrub) |
| Cleaning width | 465 mm (18.3 in) vacuuming and sweeping, 330 mm (13 in) scrubbing and dust mopping (Gausium) | 20 in (500 mm) dual disk path, 21.7 in squeegee (Tennant) |
| Coverage per hour | 350 to 700 sq m/h in practice, up to about 7,535 sq ft/h (Gausium and RobotLAB) | Not published per hour; about 20,000 sq ft (1,860 sq m) per tank of solution (Tennant) |
| Tank capacity | 11.5 L clean water, 10.5 L waste water, 6 L dust bag, 1 L trash can (Gausium) | 10 gal (38 L) solution, 10 gal (38 L) recovery (Tennant) |
| Runtime | 4.5 h scrubbing, 4.5 h vacuuming, 6 h sweeping, 10 h dust mopping (Gausium) | Up to 2.5 h of autonomous scrubbing (Tennant); Sweepscrub lists 2 h |
| Charge time | About 2 h (Gausium and RobotLAB) | Not published; 90 Ah lithium ion battery with on board charger and opportunity charging (Tennant and Sweepscrub) |
| Navigation | 2D lidar, 3D depth cameras, RGB camera, anti drop and anti collision sensors (Gausium) | BrainOS from Brain Corp with computer vision; sensor list not published (Robotics 24/7) |
| Min aisle width | 650 mm (25.6 in), and it passes under spaces 650 mm high (Gausium) | As low as 28 in (71 cm); U turn in 4.5 ft (1.37 m) (Tennant) |
| Dimensions | 585 x 445 x 619 mm (23 x 17.5 x 24.4 in) (Gausium); weight 65 kg (143 lb) net (Gausium); RobotLAB lists 167 lb | 38 x 22 x 44 in (96 x 56 x 112 cm) long, wide, high (Tennant); weight 403 lb (183 kg) with battery and empty tanks (Tennant) |
| Extras | max slope 5 degrees (Gausium); quiet mode at 60 dB or less; cleans right up to the edge per Gausium; elevator and door opener integration through RobotLAB; RobotLAB sells version 1.3 and mentions an optional workstation | max slope not published; noise as low as 66 dBA; cleans within 3 in of walls; staff fill and drain the tanks by hand since no docking station is listed; BrainOS fleet reports; elevator use not mentioned |
| Rent monthly | $829/mo on a RobotLAB 36 month RaaS plan, checked 2026-11-09 (the same page's comparison table shows $1,360/mo) | n/a |
| Best for | tight offices, hotels and clinics | schools and stores that want US dealer service |
| Skip if | you have large open floors | you want auto refill or a monthly rental price |
Specs are maker claims unless a reviewer is named. Prices from the stores we link, checked daily.
What reviewers found
Gausium Phantas
Tennant X4 ROVR
Questions buyers ask
Which is better, the Gausium Phantas or the Tennant X4 ROVR?
Pick the Gausium Phantas for tight offices, hotels and clinics. Pick the Tennant X4 ROVR for schools and stores that want US dealer service.
Which is cheaper?
The Gausium Phantas at $29,600, versus $49,382 for the Tennant X4 ROVR, checked Nov 9, 2026.
What is the difference between the Phantas and the X4 ROVR?
Cleaning modes: Scrubbing, vacuuming, sweeping and dust mopping (Gausium) on the Phantas, Wet scrubbing with vacuum pickup, in robot mode or manual mode (Tennant and Sweepscrub) on the X4 ROVR. Cleaning width: 465 mm (18.3 in) vacuuming and sweeping, 330 mm (13 in) scrubbing and dust mopping… on the Phantas, 20 in (500 mm) dual disk path, 21.7 in squeegee (Tennant) on the X4 ROVR. Coverage per hour: 350 to 700 sq m/h in practice, up to about 7,535 sq ft/h (Gausium and RobotLAB) on the Phantas, Not published per hour; about 20,000 sq ft (1,860 sq m) per tank of solution (Tennant) on the X4 ROVR.
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