THeMIS vs Yijiahe SI300
Side-by-side comparison of THeMIS (Milrem Robotics) and Yijiahe SI300 (Yijiahe Technology Co., Ltd.) — specs, pricing, Robo Index, and verified deployments. Updated daily.
Optimize comparison for buyer
Optimized for Cleaning & Facilities buyers. Priority specs lifted to the top and marked with a target.
Layer 1: Identity & Trust
Manufacturer Country
- THeMISEstonia
- Yijiahe SI300China
Year First Available
- THeMIS2015
- Yijiahe SI300—
Verified Deployments
- THeMIS0 Deployments
- Yijiahe SI3000 Deployments
Layer 2: Operational
Battery / Shift Runtime
- THeMIS1.5 hrs
- Yijiahe SI300—
Availability Status
- THeMISACTIVE
- Yijiahe SI300ACTIVE
Layer 3: Category Specific
Payload Capacity
- THeMIS1,200 kg
- Yijiahe SI300—
Max Speed
- THeMIS5.6 m/s
- Yijiahe SI3001 m/s
| Layer 1: Identity & Trust | ||
| Manufacturer Country (values differ) | Estonia | China |
| Year First Available (values differ) | 2015 | — |
| Verified Deployments | 0 Deployments | 0 Deployments |
| Layer 2: Operational | ||
| Battery / Shift Runtime (priority for Cleaning & Facilities buyers) (values differ) | 1.5 hrs | — |
| Availability Status | ACTIVE | ACTIVE |
| Layer 3: Category Specific | ||
| Payload Capacity (priority for Cleaning & Facilities buyers) (values differ) | 1,200 kg | — |
| Max Speed (values differ) | 5.6 m/s | 1 m/s |
Insufficient data for full comparison
The following fields had no data for any of the selected robots: Price, Reach, IP Rating, Autonomy Level
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 | THeMIS | Yijiahe SI300 |
|---|---|---|
| Investment | No price | No price |
| Payback period | — | — |
| Net savings (5 yr) | — | — |
| ROI (5 yr) | — | — |
THeMIS, Yijiahe SI300 have 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 THeMIS and Yijiahe SI300?
THeMIS is made by Milrem Robotics, based in EE. Yijiahe SI300 is made by Yijiahe Technology Co., Ltd., based in CN.
How do THeMIS and Yijiahe SI300 compare on the Robo Index?
THeMIS grades AA on the Robo Index. Yijiahe SI300 grades BBB. 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 THeMIS and Yijiahe SI300 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 THeMIS and Yijiahe SI300?
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
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The hidden specs vendors hope you'll miss
10 min readReading the Spec Sheet
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About this comparison
THeMIS vs Yijiahe SI300 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.