Side-by-side comparison of A-391 (Guangdong Intelligent Technology Co., Ltd.) and RB5-850E (Rainbow Robotics 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.
Manufacturer Country
Year First Available
Verified Deployments
Price Range (USD)
Availability Status
Robot Weight
Payload
Reach
Degrees of Freedom
Repeatability
Mounting Options
IP Rating
Safety Rating
Force/Torque Sensing
Setup Time
No-Code Capable
Offline Programming
Programming Interface
Tool Flange Standard
ROS Compatible
Price (USD)
Warranty
Lead Time
| Layer 1: Identity & Trust | ||
| Manufacturer Country (values differ) | — | South Korea |
| Year First Available (values differ) | — | 2011 |
| Verified Deployments | 0 Deployments | 0 Deployments |
| Layer 2: Operational | ||
| Price Range (USD) (values differ) | $29,999 USD | $22,000 USD |
| Availability Status | ACTIVE | ACTIVE |
| Layer 3: Category Specific | ||
| Arm Mechanics | ||
| Robot Weight (priority for Cleaning & Facilities buyers) (values differ) | — | 22 kg |
| Payload (priority for Cleaning & Facilities buyers) (values differ) | 120 kg | 5 kg |
| Reach (values differ) | 1,500 mm | 927.7 mm |
| Degrees of Freedom | 6 | 6 |
| Repeatability | ±0.05 mm | ±0.05 mm |
| Mounting Options (values differ) | floor, ceiling, wall | — |
| IP Rating (values differ) | IP68 | IP66 |
| Safety | ||
| Safety Rating (values differ) | SGS Group, CE, ISO, RoHS | ISO 10218-1, ISO/TS 15066 |
| Force/Torque Sensing | none | none |
| Ease of Use | ||
| Setup Time (values differ) | — | 1 hrs |
| No-Code Capable (values differ) | No | — |
| Offline Programming (values differ) | No | — |
| Programming Interface (values differ) | Laser vision tracking | no_code_gui |
| End-Effector | ||
| Tool Flange Standard (values differ) | — | M10 12-pin |
| Software & Connectivity | ||
| ROS Compatible (values differ) | No | — |
| Commercial | ||
| Price (USD) (values differ) | $29,999 USD | $22,000 USD |
| Warranty (values differ) | 1 yrs | — |
| Lead Time (values differ) | 2 wks | — |
Insufficient data for full comparison
The following fields had no data for any of the selected robots: Battery / Shift Runtime, Max TCP Speed, TCP Speed (Collaborative), Power/Force Limiting, Safety I/O Pairs, Duty Cycle, Time to Redeploy, Tool Changer Support, Integrated F/T Sensor, Wrist Power Supply, SDK Languages, Fieldbus Protocols, Digital Twin Support, MTBF, Path Accuracy, CaaS / Month
Frequently asked
A-391 is made by Guangdong Intelligent Technology Co., Ltd.. RB5-850E is made by Rainbow Robotics Co., Ltd., based in KR.
A-391 is listed at $29,999. RB5-850E is listed at $22,000.
A-391 scores 86/100. RB5-850E scores 84/100. The Robo Index blends specs, pricing transparency, verified deployments, and independent media coverage — see methodology for the full breakdown.
A-391 has a reach of 1500 mm. RB5-850E has a reach of 850 mm.
Both robots are classified as Cobot on Robolist. Filters and ranking treat them as direct alternatives.
Hardware cost is one input. Cobot TCO also includes integration, training, downtime, and end-of-life. Our breakdown: Cobot TCO and Payback Math: Hardware, EOAT, and Zero-Fencing Savings.
Spec sheets only show part of the story. Useful vendor questions cover support, lifecycle, integration cost, and references. We have a buyer-focused checklist: Cobot Vendor Red Flags: Questions That Filter Out the Marketing.
Going deeper — picking the right robot
Cobot TCO and Payback Math: Hardware, EOAT, and Zero-Fencing Savings
6 min readCollaborative Robots
Cobot Vendor Red Flags: Questions That Filter Out the Marketing
9 min readCollaborative Robots
Running a Cobot Pilot in a Manual Production Line
9 min readCollaborative 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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A-391 vs RB5-850E compares two robots in the cobot 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.