Security robots are one of the fastest-growing segments of commercial robotics, driven by a simple economic reality: a fully loaded security guard costs $45,000-$75,000 per year for a single shift, and most facilities need coverage across two or three shifts. A security robot running 20 hours per day costs $24,000-$108,000 per year depending on the platform, covering the equivalent of 2.5 guard shifts at a fraction of the long-term cost.
But the headline lease price is not the full picture. This guide breaks down every cost component so you can build an accurate budget and make honest comparisons to your current security spend.
Lease Pricing by Vendor
Most security robots are deployed under lease or Machine-as-a-Service (MaaS) agreements. Monthly costs vary significantly by vendor, capability level, and contract terms.
| Vendor | Model | Environment | Monthly Lease | Contract Term | What's Included | |--------|-------|-------------|--------------|---------------|-----------------| | Knightscope | K5 | Outdoor | $6,000-$9,000 | 12-36 months | Robot, software, maintenance, remote monitoring | | Knightscope | K1 | Indoor | $4,500-$6,500 | 12-36 months | Robot, software, maintenance, remote monitoring | | Cobalt Robotics | Cobalt | Indoor | $5,000-$8,000 | 12-24 months | Robot, software, maintenance, remote operators | | RAD | ROAMEO | Outdoor | $3,500-$5,000 | 12-24 months | Robot, software, basic maintenance | | RAD | ROSA | Stationary | $2,000-$3,500 | 12-24 months | Unit, software, basic maintenance | | Ascento | Guard | Outdoor | Custom | Custom | Robot, software, maintenance |
Knightscope's pricing sits at the premium end because their MaaS model includes comprehensive monitoring and a security operations dashboard. Cobalt's pricing includes access to their remote operations center, where trained human operators can interact with people through the robot's screen and speakers. RAD targets the value segment with lower-cost stationary and mobile options that provide surveillance and deterrence without the full autonomous patrol capabilities of Knightscope or Cobalt.
Contract terms matter. Knightscope typically requires 12-36 month commitments. Early termination penalties range from 50-100% of remaining contract value. Negotiate hard on contract length and termination terms, especially for your first deployment. A 90-day pilot clause before the long-term commitment kicks in is worth insisting on.
Purchase Pricing
Outright purchase is available from select vendors and makes economic sense for organizations planning multi-year deployments of multiple units.
| Platform Type | Purchase Price Range | Annual Maintenance | Software License | Total 3-Year Cost | |--------------|---------------------|-------------------|-----------------|-------------------| | Stationary surveillance (RAD ROSA) | $15,000-$25,000 | $2,000-$4,000 | $3,000-$5,000/yr | $30,000-$52,000 | | Indoor patrol (mid-range) | $35,000-$60,000 | $4,000-$8,000 | $5,000-$8,000/yr | $62,000-$108,000 | | Outdoor patrol (Knightscope-class) | $70,000-$120,000 | $6,000-$12,000 | $8,000-$15,000/yr | $112,000-$201,000 | | Boston Dynamics Spot (security config) | $75,000-$95,000 | $8,000-$15,000 | $12,000-$25,000/yr | $135,000-$215,000 |
The purchase price is the most visible cost but not the largest over time. Annual software licenses, which include navigation updates, security analytics, and cloud platform access, add 10-15% of the purchase price per year. Maintenance contracts cover hardware repairs, battery replacements, and preventive maintenance. Without a maintenance contract, budget $8,000-$15,000 per unplanned repair for major components like drive systems or sensor arrays.
Battery replacement is a significant recurring cost. Security robot batteries degrade over 2-3 years of daily use. Replacement costs $2,000-$6,000 depending on the platform. Factor this into your year-3 and year-5 cost projections.
Infrastructure and Integration Costs
The robot itself is only part of the total deployment cost. Infrastructure investments are often underestimated.
Network infrastructure: $2,000-$10,000. Indoor robots need reliable Wi-Fi coverage throughout the patrol area. Outdoor robots need cellular connectivity or a dedicated mesh network. If your facility has coverage gaps in parking garages, basements, or remote areas, budget for access points or cellular boosters.
Charging infrastructure: $1,000-$5,000. Robots need charging stations at accessible locations. Indoor robots typically need one station per robot. Outdoor robots may need weatherproof charging docks. Installation includes electrical work and mounting.
VMS integration: $3,000-$15,000. Feeding robot camera streams into your existing video management system requires integration work. Simple API integrations cost $3,000-$5,000. Complex integrations with custom event triggers, analytics overlays, or multi-site dashboards cost $8,000-$15,000.
Access control integration: $2,000-$8,000. Enabling robots to interface with access control systems for badge reading, door access, or elevator operation requires integration engineering. Costs depend on the complexity of your access control platform.
Site preparation: $1,000-$5,000. Outdoor patrol paths may need minor grading, curb ramp additions, or obstacle removal. Indoor patrol paths may need floor marking or furniture rearrangement. Most vendors conduct a site survey and provide recommendations.
Ongoing Operating Costs
| Cost Category | Monthly Range | Annual Range | Notes | |--------------|--------------|-------------|-------| | Lease payment | $2,000-$9,000 | $24,000-$108,000 | Vendor and model dependent | | Remote monitoring service | $500-$2,000 | $6,000-$24,000 | If not included in lease | | Connectivity (cellular) | $50-$150 | $600-$1,800 | Per robot | | Insurance | $150-$600 | $1,800-$7,200 | Per robot, liability coverage | | Energy | $30-$80 | $360-$960 | Charging electricity | | Cleaning and minor maintenance | $100-$300 | $1,200-$3,600 | Sensor cleaning, cosmetic upkeep |
Remote monitoring deserves attention. Some vendors include 24/7 monitoring in the lease price. Others charge separately, or expect you to monitor the robot through their dashboard using your own security staff. If you plan to monitor in-house, account for the staff time: approximately 15-30 minutes per robot per shift for checking status, reviewing alerts, and handling exceptions.
Cost Comparison: Robots vs. Human Guards
The comparison most buyers care about is robot cost versus guard cost. Here is an honest, apples-to-apples analysis.
Single-shift security guard (fully loaded): $45,000-$75,000/year. This includes wages ($15-$25/hour), benefits (15-25% of wages), payroll taxes, workers' compensation insurance, uniforms, training, and management overhead. Contract guard rates from major providers like Allied Universal or Securitas run $22-$40 per hour billed, translating to $45,000-$83,000 per year for a single 8-hour shift position.
Three-shift guard coverage: $135,000-$225,000/year. Covering a post 24/7 requires 4.2-4.5 FTE when accounting for weekends, holidays, sick time, and turnover.
Security robot (mid-range outdoor lease): $72,000-$108,000/year all-in. This covers the lease, connectivity, insurance, and energy. The robot runs 20+ hours per day, covering the equivalent of 2.5 shifts.
The real comparison: A security robot does not replace a guard one-for-one. It replaces patrol coverage while a human handles response, judgment calls, and physical intervention. The practical model is to pair robots with a reduced guard force. A facility that currently staffs three patrol guards per shift might deploy two robots and reduce to one guard per shift, saving $180,000-$300,000 annually while improving patrol consistency.
Total Cost of Ownership: 3-Year Model
For a mid-size commercial property deploying two outdoor patrol robots on lease:
| Cost Component | Year 1 | Year 2 | Year 3 | 3-Year Total | |---------------|--------|--------|--------|-------------| | Robot lease (2 units) | $144,000 | $144,000 | $144,000 | $432,000 | | Infrastructure (one-time) | $15,000 | $0 | $0 | $15,000 | | Integration (one-time) | $12,000 | $0 | $0 | $12,000 | | Insurance | $8,000 | $8,000 | $8,000 | $24,000 | | Connectivity | $3,600 | $3,600 | $3,600 | $10,800 | | Energy | $1,500 | $1,500 | $1,500 | $4,500 | | Total | $184,100 | $157,100 | $157,100 | $498,400 |
Compare this to three-shift guard coverage for two patrol posts: $270,000-$450,000 per year, or $810,000-$1,350,000 over three years. Even with a robot deployment that supplements rather than fully replaces guards, the savings are substantial.
The economics of security robots are increasingly favorable, but the decision should not be purely financial. Robots deliver consistent coverage, comprehensive sensor data, and documented patrol records that improve overall security posture. Build your business case on both the cost savings and the operational improvements.