Hengbot Sirius

$1,299

Out of stockKickstarterPalm-sizedAI companion

Weeks+Shipping: Waitlist.

Overview

A sub-1 kg, stylized AI robot dog that raised $912,768 from 1,150 backers on Kickstarter in 2025. It targets the space between Bittle-class kits and consumer pets, with dance, soccer and demos of learning tricks. Hengbot's May 2026 backer update said most reward orders had been dispatched, with about 60 orders to remote countries still clearing customs. As of September 2026 the official site offers only a waitlist, and its store lists no products. In October 2026 Hengbot support said the previous campaign had ended and that Sirius is scheduled to go on sale again in Europe and the United States in November 2026, with the exact launch date and purchasing details to be announced on Hengbot's website and social media.

Type: Quadruped robot · Desktop / hobby kits
Maker: Hengbot (China)
Released: 2025
Price: $1,299
Status: Out of stock
Best for: Ages 10+
Programming: Limited SDK

Price and shipping

Retail price cited by press (CNET) and quoted on Hengbot's own site. Kickstarter backers paid less. Currently waitlist-only on Hengbot's site, with sales in Europe and the US scheduled to resume in November 2026 (per Hengbot support).

Shipping: Waitlist. Not currently orderable. Hengbot's site offers a waitlist. Hengbot support said in October 2026 that sales in Europe and the US are scheduled to resume in November 2026. Hengbot ↗

Specifications

Category	Quadrupeds · Desktop / hobby kits
Released	2025
Country	China
Availability	Out of stock
Sales	1,150 Kickstarter backers, $912,768 pledged (2025, estimate) Kickstarter ↗
Programmability	Limited SDK
Built-in autonomy	Reactive · Responds to its surroundings without a map, such as avoiding obstacles or following a person
LLM support	Built-in LLM chat · Sirius uses cloud LLMs such as OpenAI for natural voice conversation and custom personas, while movements remain preset tricks. PR Newswire launch ↗
MuJoCo simulation	None found · Nothing found.
NVIDIA Isaac simulation	None found · Nothing found.
Gazebo simulation	None found · Nothing found.
Best for	Ages 10+ (estimated)
Vision sensors	Camera
Actuators	Unknown
Audio	Unknown
Compute type	Proprietary / undisclosed
Compute	5 TOPS AI processor (per Hengbot's Kickstarter)
Weight	~1 kg
Speed	Not published
DOF	Not published
Sensors	Camera, others not published
SDK	Python/C/C++ programming plus a motion library and app control (Hengbot's 'secondary development' support), full SDK details not published

Common questions

How much does Sirius cost?

Sirius is listed at $1,299. Retail price cited by press (CNET) and quoted on Hengbot's own site. Kickstarter backers paid less. Currently waitlist-only on Hengbot's site, with sales in Europe and the US scheduled to resume in November 2026 (per Hengbot support).

Can Sirius be bought today?

It is out of stock right now. Not currently orderable. Hengbot's site offers a waitlist. Hengbot support said in October 2026 that sales in Europe and the US are scheduled to resume in November 2026.

Who makes Sirius?

Sirius is made by Hengbot (China). It came out in 2025.

Can Sirius be programmed?

Limited SDK. Python/C/C++ programming plus a motion library and app control (Hengbot's 'secondary development' support), full SDK details not published.