Compare
Romi vs Stretch 4
Quick verdict
Romi leads on 5 of 10 comparable rows
Romi leads on Readiness Score, Reality Score, Price, and Autonomy (+1 more). Stretch 4 leads on Battery, Countries, Mobility, and Manipulation (+1 more).
Who should choose which?
Choose Romi if…
- Verified shipping and public proof matter more to you (reality score 85/100).
- Budget is a priority and Romi lists lower ($658).
- Your main goal is conversation, which Romi targets directly.
- Strengths like social interaction and perception match how you plan to use it at home.
- You prefer a desktop form factor over the alternatives in this compare.
Choose Stretch 4 if…
- Your main goal is home assistant, which Stretch 4 targets directly.
- Strengths like perception and manipulation match how you plan to use it at home.
- You prefer a other form factor over the alternatives in this compare.
| Spec | Romi  MIXILeads 5 | Stretch 4  Hello RobotLeads 5 |
|---|---|---|
| Performance | ||
| Readiness Score | 88 | 84 |
| Reality Score | 85 | 80 |
| Data Freshness | 100% | 100% |
| Speed | Unknown | 2.2 km/h |
| Payload | Unknown | 2.5 kg (extended) / 4 kg (retracted) |
| Specs | ||
| Height | 10 cm | 160 cm |
| Weight | 0.4 kg | 46 kg |
| Battery | 3 h | 8 h |
| Form | Desktop | Other |
| Availability | ||
| Price | $658 | $29,950 |
| Market Status | Buy Now | Buy Now |
| Availability | Limited | Limited |
| Countries | Japan | United States, Global (direct order) |
| Intelligence | ||
| Mobility | 18 | 82 |
| Manipulation | 8 | 88 |
| Perception | 90 | 90 |
| Autonomy | 78 | 74 |
| Social Interaction | 97 | 58 |
| Home Navigation | 12 | 86 |
| Sensors | 120° camera, touch sensors, ambient light sensor, IMU, microphone array | 2× hemispherical 3D LiDAR (Hesai), 3× high-res cameras, 6× laser line sensors, wrist depth camera, IMU |
| Connectivity | Wi-Fi (2.4/5 GHz) | Wi-Fi 5.2, Ethernet, USB expansion |
| Ecosystem | Romi smartphone app (iOS and Android); Required cloud subscription (monthly or annual); Vision sharing and long-term memory; Family profiles and remote viewing; LINE and email news updates; Four color shells (Natural White, Sakura Pink, Sky Blue, Moon Gray) | ROS 2 Humble; Python SDK; Stretch Body software stack; Optional self-charging dock; Quick-release gripper tooling; Global distributor network (Japan, Korea, China) |
Green cells mark the stronger value in each row across 2 robots.