Guardian S vs THeMIS
Side-by-side comparison of Guardian S (Sarcos) and THeMIS (Milrem Robotics) — specs, pricing, Robo Index, and verified deployments. Updated daily.
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Optimized for Home & Household buyers. Priority specs lifted to the top and marked with a target.
Layer 1: Identity & Trust
Manufacturer Country
- Guardian SUnited States
- THeMISEstonia
Year First Available
- Guardian S2017
- THeMIS2015
Verified Deployments
- Guardian S0 Deployments
- THeMIS0 Deployments
Layer 2: Operational
Price
- Guardian S$60,000 USD
- THeMISContact for quote
Battery / Shift Runtime
- Guardian S2 hrs
- THeMIS1.5 hrs
Availability Status
- Guardian SACTIVE
- THeMISACTIVE
Layer 3: Category Specific
Payload Capacity
- Guardian S90 kg
- THeMIS1,200 kg
Max Speed
- Guardian S0.6 m/s
- THeMIS5.6 m/s
IP Rating
- Guardian SIP65
- THeMIS—
Autonomy Level
- Guardian Steleoperated
- THeMIS—
| ||
|---|---|---|
| Layer 1: Identity & Trust | ||
| Manufacturer Country (values differ) | United States | Estonia |
| Year First Available (values differ) | 2017 | 2015 |
| Verified Deployments | 0 Deployments | 0 Deployments |
| Layer 2: Operational | ||
| Price (values differ) | $60,000 USD | Contact for quote |
| Battery / Shift Runtime (priority for Home & Household buyers) (values differ) | 2 hrs | 1.5 hrs |
| Availability Status | ACTIVE | ACTIVE |
| Layer 3: Category Specific | ||
| Payload Capacity (values differ) | 90 kg | 1,200 kg |
| Max Speed (values differ) | 0.6 m/s | 5.6 m/s |
| IP Rating (values differ) | IP65 | — |
| Autonomy Level (values differ) | teleoperated | — |
Insufficient data for full comparison
The following fields had no data for any of the selected robots: Reach
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 | Guardian S | THeMIS |
|---|---|---|
| Investment | $60,000 | No price |
| Payback period | 14.4 mo | — |
| Net savings (5 yr) | $190,000 | — |
| ROI (5 yr) | +317% | — |
THeMIS has no listed price, so payback can't be computed. Contact the manufacturer for a quote.
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 Guardian S and THeMIS?
Guardian S is made by Sarcos, based in US. THeMIS is made by Milrem Robotics, based in EE.
When were Guardian S and THeMIS launched?
Guardian S launched in 2017. THeMIS launched in 2015.
How do Guardian S and THeMIS compare on the Robo Index?
Guardian S grades A on the Robo Index. THeMIS 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 Guardian S and THeMIS in the same category?
Both robots are classified as Security on Robolist. Filters and ranking treat them as direct alternatives.
What should a buyer ask vendors when choosing between Guardian S and THeMIS?
Spec sheets only show part of the story. Useful vendor questions cover support, lifecycle, integration cost, and references. We have a buyer-focused checklist: The security-robot vendor RFP: questions and red flags.
Going deeper — picking the right robot
The security-robot vendor RFP: questions and red flags
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Security robot platform decision framework
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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
Guardian S vs THeMIS compares two robots in the security 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.