Astribot S1
The Astribot S1 is a mobile dual-arm humanoid from Astribot, a Shenzhen-based subsidiary of Stardust Intelligence, best known for viral demos of extremely fast, smooth arm motion. Its two 7-DoF arms are quoted at end-effector speeds of 10 m/s or more with millimeter-level repeatability. It's aimed at household-style manipulation, service work and embodied-AI research; early commercial pricing reported by third parties runs high and is not officially confirmed.
What is the Astribot S1?
If you've seen a humanoid robot fold laundry, pour a drink, or shave cucumber at a speed that made you do a double-take, there's a decent chance it was the Astribot S1. Its debut demo reel is genuinely one of the more jaw-dropping things in the field, the arms move fast and, crucially, smooth.
Behind it is Astribot, a subsidiary of Stardust Intelligence, founded 2022 in Shenzhen. The company's whole pitch is manipulation, teaching a robot to do fiddly two-handed tasks by watching humans, then doing them on its own. That's a different emphasis than the walk-across-a-factory-floor crowd.
So what's the S1 actually like to consider as a buyer in 2026, and how much of that demo magic survives contact with a real deployment? Let's get into the specs, the price situation, and the honest caveats.
What is the Astribot S1 and what can it do?
The S1 is a bimanual mobile manipulator. Rather than a walking bipedal design, it pairs a human-scale upper body — two 7-DoF arms on a torso — with a mobile base, standing around 165 cm and weighing roughly 58 kg by reported figures. The focus is entirely on the hands and arms.
And those arms are the headline. Astribot quotes end-effector speeds of 10 m/s or greater, repeatability around ±0.1 mm, and a payload near 5 kg per arm at full horizontal reach. In demos the S1 cooks, pours, tidies and manipulates delicate objects, and the core tech is a whole-body imitation-learning system that lets it pick up new tasks from human demonstration.
One honest limitation worth flagging, some early configurations use parallel-jaw grippers rather than fully dexterous five-finger hands, so "human-like manipulation" has an asterisk depending on the setup.
How much does the Astribot S1 cost?
Astribot has not published a definitive official consumer price, so anything you see should be read as reported, not confirmed. Third-party sources cite early-commercial pricing in the region of $96,000 to $150,000, which would place the S1 in the premium tier alongside robots like Figure and Atlas-class machines.
You may also see much lower figures floating around (some coverage has referenced a far cheaper target price for a stripped model), those are aspirational or unconfirmed and shouldn't be treated as the real cost of a deployable S1 today. Bottom line: budget premium, and get a direct quote.
Astribot S1 availability: where and when can you buy it?
The S1 entered limited commercial availability in late 2025, initially in China, with an international rollout expanding through 2026. Various distributors now list the S1 for the US and several other markets, so it's more reachable than a lot of China-first humanoids.
Still, keep expectations realistic. This is early commercial availability sold largely to businesses and research groups, not a mass-market consumer launch with a warranty desk in every city. If you're buying internationally, confirm support, spares and software terms up front, an ultra-fast manipulator is only useful if you can keep it running.
How does the S1 work — autonomy vs teleoperation?
Astribot positions the S1 as designed to operate autonomously, which sets it apart from the many humanoid demos that are quietly puppeteered. The mechanism is imitation learning: the robot acquires skills from human demonstrations, refines them through data-driven training, then executes independently.
That said, teleoperation is part of the pipeline, not a dirty secret. The company's DFAI stack uses teleoperation and data collection to train skills before autonomous execution. It's worth being clear-eyed that a slick autonomous demo of one specific task doesn't mean the S1 autonomously handles any task you throw at it, novel or messy multi-step jobs are still where these systems stumble.
Astribot S1 vs Figure and Unitree
Compared with walking-first humanoids, the S1's whole identity is manipulation speed and smoothness. If your problem is "do fast, precise two-handed tasks at a fixed-ish workstation," the S1 is arguably more compelling than a robot that spends its engineering budget on bipedal locomotion.
Versus Figure, which chases general-purpose autonomous work with heavy commercial backing, Astribot is more of a manipulation-and-research specialist. Versus Unitree's cheaper platforms, the S1 is far pricier but much more capable at dexterous tasks. Pick based on the job: locomotion and general labor point one way, fast dexterous manipulation points squarely at the S1.
Is the Astribot S1 worth it and who's it for?
The S1 is a strong fit for embodied-AI researchers, data-collection teams, and service or hospitality pilots where fast, precise bimanual manipulation is the point. If you're building or studying manipulation policies, that speed and repeatability is real value.
For a consumer hoping for an affordable in-home helper, it's not there yet — the price is premium, availability is early-commercial, and the autonomy is impressive-but-bounded. As a research and early-deployment manipulation platform it's genuinely exciting; as a finished household robot you can buy and forget about, temper expectations.
Who the Astribot S1 is — and isn't — for
+Where it shines
- Open developer access (SDK/API) — good for builders and labs.
- Stated real-world payload (5 kg per arm at full horizontal reach).
!Watch-outs
- Some demos rely on teleoperation, not full autonomy.
- Sold to businesses only — not to private buyers.
How the Astribot S1 stacks up
Side by side with similar robots — the one you're reading about is highlighted.
| This robot Astribot (Stardust Intelligence) Astribot S1 |  Unitree Robotics Unitree R1 |  Unitree Robotics Unitree G1 |  Unitree Robotics Unitree H1 | |
|---|---|---|---|---|
| Price (US) | $96,000 – $150,000 | $4,900 – $5,900 | $13,500 – $73,900 | ~$90,000 |
| Availability | Enterprise inquiry | On the market | On the market | On the market |
| Height | 170 cm | 1.23 m | 1.32 m standing | ~1.80 m |
| Payload | 5 kg per arm at full horizontal reach | Unknown | Arm ~2 kg | Not rated for H1 |
| DoF | 23 | 20 | 23 | ~19 |
| Buyer | Enterprise | Individuals | Individuals | Enterprise |
| Made in | China | China | China | China |
What the Astribot S1 costs — and how to get one
Third-party reported early-deployment range; not confirmed by Astribot.
Enterprise/research inquiry via Astribot +; no verified self-serve purchase
Leasing / RaaS: unknown
Every spec, grouped & sourced
Tap a group to expand. Values are labelled official vs third-party; unknowns are omitted, not guessed.
Body & movement▾
Power & endurance▾
Hands & senses▾
Brains & control▾
Claims vs evidence
'Design for AI'; imitation learning + ML policies for autonomous execution; marketing-level, no independent benchmarks
Where it's working
unknown - demo-driven visibility, no verified named customers
Intended use cases: Bimanual manipulation for household (cooking, pouring, tidying), service/hospitality, and embodied-AI research/data collection
Should you consider the Astribot S1?
The Astribot S1 is one of the most impressive manipulation-focused humanoids around — genuinely fast, precise arms and a real imitation-learning pipeline. It's best understood as a premium research and early-deployment platform, not a finished consumer robot: pricing is high and unconfirmed, availability is early-commercial, and autonomy, while real, has limits.
Score reflects stated criteria (availability, data confidence, US relevance) — not hands-on testing or user ratings. We're an independent review & comparison site; we don't sell robots. *Financing figure is illustrative.
How we know this
Data confidence 62/100 · last verified 2026-06-24. Specs are labelled official vs third-party and dated; unknowns are omitted, not guessed.
Astribot S1 — your questions, answered in full
Who makes the Astribot S1?+
Astribot, a subsidiary of Stardust Intelligence, founded in 2022 and based in Shenzhen, China. The company specializes in dexterous bimanual manipulation.
How fast is the Astribot S1?+
Astribot quotes end-effector speeds of 10 m/s or more, with repeatability around ±0.1 mm. That arm speed is the S1's signature feature and what made its early demos go viral.
How much does the Astribot S1 cost?+
There's no confirmed official price. Third-party sources report early-commercial pricing of roughly $96,000 to $150,000. Lower figures you may see are aspirational or unconfirmed.
Can you buy the Astribot S1 in the US?+
It entered limited commercial availability in late 2025 (initially China) and has been rolling out internationally through 2026, with distributors listing it for the US and other markets. Confirm support and spares before buying.
Is the Astribot S1 autonomous or teleoperated?+
It's designed to run autonomously via imitation learning, but teleoperation is used to collect data and train skills first. Autonomy is strong on trained tasks and more limited on novel ones.
How tall is the Astribot S1?+
Reported figures put it around 165 cm tall and about 58 kg. It uses a mobile base rather than bipedal legs, so it's a wheeled/mobile dual-arm humanoid.
Does the Astribot S1 have hands or grippers?+
Some early configurations use parallel-jaw grippers rather than fully dexterous five-finger hands, so the manipulation setup varies by configuration.
What is the Astribot S1 used for?+
Household-style manipulation (cooking, pouring, tidying), service and hospitality tasks, and embodied-AI research and data collection.
Peer-reviewed research on the Astribot S1
Published academic work — peer-reviewed papers and preprints — involving this robot or its maker's systems, indexed in scholarly databases (OpenAlex, arXiv). Not blog posts or press write-ups.
- Towards Human-level Intelligence via Human-like Whole-Body ManipulationGuang Gao, Jianan Wang, Jinbo Zuo, Junnan Jiang, Jingfan Zhang, et al. · 2025 · arXiv preprint · DOI 10.48550/arXiv.2507.17141
Academic references are factual citations from open scholarly indexes; listing is not endorsement.