Comparison
B1 and B2 are quadrupeds for research, inspection, and industrial trials. They are not living-room dogs. If you wanted a pet, you are in the wrong aisle — start with Loona versus Go2 or toy versus real.
The catalog titles sometimes say “humanoid.” They are not. Both walk on four legs. B2 is the newer, more industrial platform. B1 is the earlier work walker. Go2 sits below them as a lighter education and inspection machine. For Go2 versus B2, see classroom walker or industrial quadruped.
ⓘ Quick Answer
Choose B2 if the ground is rough, the payload is real, and you have an operator. Choose B1 only if you have a specific older programme, a budget cap, and a dealer who will still support it. Choose Go2 if this is a lab or classroom and not a worksite.
What actually changes
B1
Earlier industrial quadruped. Useful where a programme already exists around it. Check remaining support and spare parts before you pay a “deal” price.
B2
The current work-oriented Unitree walker in this pair: more payload and a tougher brief. Still needs a person, a battery plan, and a site that is allowed to run it.
Who should not buy either
Homes, hotels, and anyone who wanted a companion. Schools that wanted Go2. Security teams that have not installed cameras yet — read robot dog versus cameras.
How to buy without regret
Buy through a dealer who will train an operator and talk about payload, IP rating, and what happens when a leg takes a hit. Do not buy from a consumer marketplace listing. Quote, do not impulse.
💡 What to Check
Ask the dealer to state payload, environment, and spare-parts lead time in writing. If they only send a highlight video, keep your money.
B1 vs B2 checklist
B1 vs B2 checklist
- Is this work, research, or a pet? If pet, stop.
- What payload and ground do I actually have?
- Who is the trained operator after week one?
- Is support available in my country for this exact model?
- Have I compared Go2 if this is really a classroom job?
Final Thoughts
B2 is the default when the job is industrial walking. B1 is a specific older fit. Neither is a house dog.
Compare them as work platforms on Robot.help, then request a quote.
Frequently Asked Questions
Is B2 a humanoid?
No. It is a quadruped. Ignore titles that say otherwise.
Can I upgrade from B1 to B2 later?
Treat them as separate purchases. Programmes and payloads do not always move across.
Is Go2 cheaper and good enough?
For education and light indoor demos, often yes. For a dirty worksite, usually no.