Side-by-side comparison of Cobalt (Cobalt Robotics) and ELF ROBOT (Guangzhou Aobo Information Technology Co., Ltd.) — specs, pricing, Robolist Product Score, and verified deployments. Updated daily.
Optimize comparison for buyer
Optimized for Manufacturing buyers. Priority specs lifted to the top and marked with a target.
Manufacturer Country


Year First Available


Verified Deployments


Price Range (USD)


Battery / Shift Runtime


Availability Status


Payload


Robot Weight


Dimensions


Navigation Type


Max Speed


Min Passable Width


Battery Runtime


Charge Time


Auto Docking


Elevator API


PMS / POS Integration


Fleet Management


Floor Compatibility


Voice Interaction


Languages Supported


Price (USD)


RaaS / Month


![]() | ![]() | |
|---|---|---|
| Layer 1: Identity & Trust | ||
| Manufacturer Country (values differ) | United States | China |
| Year First Available (values differ) | 2017 | 2014 |
| Verified Deployments | 0 Deployments | 0 Deployments |
| Layer 2: Operational | ||
| Price Range (USD) (values differ) | Contact for quote | $3,500 |
| Battery / Shift Runtime (values differ) | 8 hrs | 6 hrs |
| Availability Status | ACTIVE | ACTIVE |
| Layer 3: Category Specific | ||
| Physical | ||
| Payload (priority for Manufacturing buyers) (values differ) | 25 kg | — |
| Robot Weight (values differ) | 64 kg | — |
| Dimensions (values differ) | 533x533x1549 | — |
| Navigation & Safety | ||
| Navigation Type (values differ) | slam natural | — |
| Max Speed (values differ) | 2.7 m/s | — |
| Min Passable Width (values differ) | 53.3 cm | — |
| Power | ||
| Battery Runtime (values differ) | 8 hrs | 6 hrs |
| Charge Time (values differ) | 2 hrs | — |
| Auto Docking (values differ) | Yes | — |
| Integration | ||
| Elevator API (values differ) | Yes | — |
| PMS / POS Integration (values differ) | Yes | — |
| Fleet Management (values differ) | centralized cloud | — |
| Floor Compatibility (values differ) | hard floor,low pile carpet | — |
| Display & UX | ||
| Voice Interaction | Yes | Yes |
| Languages Supported (values differ) | — | Chinese, English |
| Commercial | ||
| Price (USD) (values differ) | Contact for quote | $3,500 |
| RaaS / Month (values differ) | $75,000 | — |
Insufficient data for full comparison
The following fields had no data for any of the selected robots: Tray Count, Compartment Type, IP Rating, Hot-Swap Battery, Display Size, Noise Level, Warranty
Frequently asked
Cobalt is made by Cobalt Robotics, based in US. ELF ROBOT is made by Guangzhou Aobo Information Technology Co., Ltd., based in CN.
Cobalt launched in 2017. ELF ROBOT launched in 2014.
Cobalt scores 34/100. ELF ROBOT scores 65/100. The Product Score blends specs, pricing transparency, verified deployments, and independent media coverage — see methodology for the full breakdown.
Both robots are classified as Hospitality Service on Robolist. Filters and ranking treat them as direct alternatives.
Hardware cost is one input. Hospitality Service TCO also includes integration, training, downtime, and end-of-life. Our breakdown: Service Robot TCO Across Hotels, Restaurants, Retail, and Senior Care.
Spec sheets only show part of the story. Useful vendor questions cover support, lifecycle, integration cost, and references. We have a buyer-focused checklist: Service Robot SLAs and Contract Red Flags.
Going deeper — picking the right robot
Service Robot TCO Across Hotels, Restaurants, Retail, and Senior Care
9 min readService Robots
Service Robot SLAs and Contract Red Flags
10 min readService Robots
Service Robot Pilot: A 60-Day Evaluation Framework
10 min readService 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
Cobalt vs ELF ROBOT compares two robots in the hospitality-service category. All data is sourced from manufacturer spec sheets, verified deployments, and third-party filings; see our methodology for how the Robolist Product Score is calculated.