R12 Rex Scrub vs Whiz
Side-by-side comparison of R12 Rex Scrub (Lionsbot) and Whiz (SoftBank Robotics) — specs, pricing, Robo Index, and verified deployments. Updated daily.
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Optimized for Healthcare & Hospitals buyers. Priority specs lifted to the top and marked with a target.
Layer 1: Identity & Trust
Manufacturer Country
- R12 Rex ScrubSingapore
- WhizUnited States
Year First Available
- R12 Rex Scrub—
- Whiz2019
Verified Deployments
- R12 Rex Scrub0 Deployments
- Whiz0 Deployments
Layer 2: Operational
Price
- R12 Rex Scrub$48,500–$81,150 USD
- WhizUp to $27,400 USD
Battery / Shift Runtime
- R12 Rex Scrub—
- Whiz3 hrs
Availability Status
- R12 Rex ScrubACTIVE
- WhizACTIVE
Layer 3: Category Specific
Max Speed
- R12 Rex Scrub1.4 m/s
- Whiz0.5 m/s
Autonomy Level
- R12 Rex Scrub—
- Whizfully autonomous
| ||
|---|---|---|
| Layer 1: Identity & Trust | ||
| Manufacturer Country (values differ) | Singapore | United States |
| Year First Available (values differ) | — | 2019 |
| Verified Deployments | 0 Deployments | 0 Deployments |
| Layer 2: Operational | ||
| Price (values differ) | $48,500–$81,150 USD | Up to $27,400 USD |
| Battery / Shift Runtime (values differ) | — | 3 hrs |
| Availability Status | ACTIVE | ACTIVE |
| Layer 3: Category Specific | ||
| Max Speed (values differ) | 1.4 m/s | 0.5 m/s |
| Autonomy Level (values differ) | — | fully autonomous |
Insufficient data for full comparison
The following fields had no data for any of the selected robots: Payload Capacity, Reach, IP Rating
ROI Comparison
Same operating assumptions across every robot — the only difference is price. Set your numbers once to see which pays back fastest.
Annual labor displaced (per robot): $50,000
| Metric | R12 Rex Scrub | Whiz |
|---|---|---|
| Investment | $64,825 | $27,400 |
| Payback period | 15.6 mo | 6.6 mo |
| Net savings (5 yr) | $185,175 | $222,600 |
| ROI (5 yr) | +286% | +812% |
Estimates labor-cost displacement only — not a full total cost of ownership. Actual ROI depends on integration, maintenance, training, downtime, and task fit. Converted currencies are indicative; USD is the price of record.
Trade-offs at a glance
Frequently asked
Who makes R12 Rex Scrub and Whiz?
R12 Rex Scrub is made by Lionsbot, based in SG. Whiz is made by SoftBank Robotics, based in US.
How do R12 Rex Scrub and Whiz compare on the Robo Index?
R12 Rex Scrub grades A on the Robo Index. Whiz grades AA. The Robo Index is a credibility grade (AAA … C) that blends commercial maturity, verified deployments, company standing, and independent coverage — see methodology for the full breakdown.
Are R12 Rex Scrub and Whiz in the same category?
Both robots are classified as Cleaning on Robolist. Filters and ranking treat them as direct alternatives.
What is the realistic total cost of ownership for Cleaning robots?
Hardware cost is one input. Cleaning TCO also includes integration, training, downtime, and end-of-life. Our breakdown: Cleaning robot TCO: hardware, consumables, and human-in-the-loop time.
What should a buyer ask vendors when choosing between R12 Rex Scrub and Whiz?
Spec sheets only show part of the story. Useful vendor questions cover support, lifecycle, integration cost, and references. We have a buyer-focused checklist: Cleaning robot vendor evaluation: SLAs, fleet management, and reporting.
Going deeper — picking the right robot
Cleaning robot TCO: hardware, consumables, and human-in-the-loop time
8 min readCleaning Robots
Cleaning robot vendor evaluation: SLAs, fleet management, and reporting
10 min readCleaning Robots
Operator training: the line item most facilities skip
9 min readCleaning Robots
Build vs buy vs lease: which model fits a first deployment
8 min readChoosing Your First Robot
The hidden specs vendors hope you'll miss
10 min readReading the Spec Sheet
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About this comparison
R12 Rex Scrub vs Whiz compares two robots in the cleaning category. All data is sourced from manufacturer spec sheets, verified deployments, and third-party filings; see our methodology for how the Robo Index is calculated.