Amazon AstrovsHello Robot Stretch 3
Side-by-side comparison of Amazon Astro and Hello Robot Stretch 3: specs, price, use cases and SDKs.

Astro
Household companion robot

Stretch 3
Mobile manipulator for research + home assistive (open SDK)
Specifications
| Spec | Astro | Stretch 3 |
|---|---|---|
| Price (USD) | $1,600 | $24,950 |
| Category | home | home |
| Payload | — | 1.5 kg |
| Runtime | 2 h | 4 h |
| Weight | 9 kg | 24 kg |
| Reach | — | 1m vertical, 0.6m horizontal |
| Degrees of Freedom | — | 5 |
| Battery | — | LiFePO4 |
- Home monitoring
- Elder care
- Alexa everywhere
- Research labs
- Home accessibility pilots
- Manipulation benchmarks
- Tabletop sorting
When to pick which
Choose Amazon Astro for residential monitoring and large-scale consumer deployments where budget is a primary constraint. At $1,600, it is the optimal choice for individual homeowners or elder care facility managers who need a fleet of mobile sensors for basic telepresence and security. Its 9kg lightweight frame and Alexa integration make it suitable for non-technical users performing simple tasks like checking if an appliance was left on or providing remote check-ins for seniors. While its 2-hour runtime is shorter than industrial alternatives, its price point allows for multi-unit deployment across residential properties where physical manipulation of objects is not required.
Select Hello Robot Stretch 3 for academic research labs and healthcare innovation centers focused on physical assistance and robotic manipulation. With a 1.5kg payload and 5 degrees of freedom, it is designed for complex tasks like tabletop sorting or fetching items in accessibility pilots. The $24,950 investment is justified by its open-source SDK, ROS2 Humble drivers, and 4-hour runtime powered by LiFePO4 batteries, which are essential for long-duration experimentation. It is the superior choice for developers needing a mobile manipulator to benchmark AI models or create custom assistive tools for people with limited mobility in controlled clinical environments.
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