Side-by-side comparison of Double 3 (Double Robotics) and HT-GJ30 (Zhengzhou Hento Machinery Co., Ltd.) — specs, pricing, Robolist Product Score, and verified deployments. Updated daily.
Optimize comparison for buyer
Manufacturer Country


Verified Deployments


Price Range (USD)


Battery / Shift Runtime


Availability Status


Payload


Robot Weight


Dimensions


Navigation Type


Battery Runtime


Auto Docking


Voice Interaction


Price (USD)


Warranty


![]() | ![]() | |
|---|---|---|
| Layer 1: Identity & Trust | ||
| Manufacturer Country (values differ) | — | China |
| Verified Deployments | 0 Deployments | 0 Deployments |
| Layer 2: Operational | ||
| Price Range (USD) (values differ) | Contact for quote | $1,230 |
| Battery / Shift Runtime (values differ) | — | 12 hrs |
| Availability Status | ACTIVE | ACTIVE |
| Layer 3: Category Specific | ||
| Physical | ||
| Payload (values differ) | — | 300 kg |
| Robot Weight (values differ) | — | 65 kg |
| Dimensions (values differ) | — | 1650*580*550 |
| Navigation & Safety | ||
| Navigation Type (values differ) | hybrid | other |
| Power | ||
| Battery Runtime (values differ) | — | 12 hrs |
| Auto Docking (values differ) | Yes | — |
| Display & UX | ||
| Voice Interaction (values differ) | No | — |
| Commercial | ||
| Price (USD) (values differ) | Contact for quote | $1,230 |
| Warranty (values differ) | — | 1 yrs |
Insufficient data for full comparison
The following fields had no data for any of the selected robots: Year First Available, Tray Count, Compartment Type, IP Rating, Max Speed, Min Passable Width, Charge Time, Hot-Swap Battery, Elevator API, PMS / POS Integration, Fleet Management, Floor Compatibility, Display Size, Noise Level, Languages Supported, RaaS / Month
Frequently asked
Double 3 is made by Double Robotics. HT-GJ30 is made by Zhengzhou Hento Machinery Co., Ltd., based in CN.
Double 3 scores 0/100. HT-GJ30 scores 56/100. 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
Double 3 vs HT-GJ30 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.