Comparison
Go1 and Go2 look like two sizes of the same dog. They are two generations of compact Unitree quadruped. Go2 is the one you should default to for a new education or demo buy. Go1 is the one you consider when the price is honest, the seller is real, and you know you are buying last year’s platform.
If you still need the split between toys, companions, and walking machines, start with robot dogs in 2026. If the question is compact versus industrial, that is Go2 versus B2. This page is only Go1 versus Go2. Use the compare cards next to it.
ⓘ Quick Answer
Buy Go2 for a new compact quadruped: newer sensing on supported versions, including LiDAR on some configurations, and a platform still being sold as current. Buy Go1 only if you have a clear education brief, a support path, and a price that reflects an older machine — typically listed from around USD 2,700+ when it was the current entry, and all over the map used. Do not buy either as a household pet. Do not mix their spec sheets from memory.
Same job, different year
Go1
Compact quadruped for research, STEM demos, light inspection. Runtime often about one to two hours. Light payload, roughly a few kilograms depending on configuration. Follow mode and developer access on supported versions. Older entry platform.
Go2
Current compact sibling. Agile walking, developer options, LiDAR on supported configurations. Runtime still about one to two hours. Street prices typically from around USD 1,600+ depending on version and seller. Still not an industrial mule.
Both scratch floors. Both need supervision. Both are the wrong gift for a child who wanted Loona.
Why Go2 is the default new buy
Sensing and software moved. Parts and docs follow the current line. A lab that will still be teaching in three years would rather debug the platform the manufacturer is shipping. Go1 remains valid when it is already on the shelf, or when a trusted seller has stock and spare legs. If both quotes are close, spend the extra on Go2 and a spare battery rather than on a second controller you will lose.
💡 What to Check
Exact version, SDK, battery, and who repairs a joint in your country. Marketplace “Go2” at toy money is a different machine — see buying without getting scammed.
When Go1 is still rational
You already own one that works. A university surplus sale with known hours. A curriculum written around Go1 examples you do not want to rewrite this semester. Those are reasons. “It looks the same in a thumbnail” is not.
What neither one is
Not B2. Not a warehouse AMR. Not a companion. If you wanted a wheeled pet, that is Loona — Loona versus Go2. If you wanted industrial payload, walk away from both compact models.
Cost is more than the sticker
Extra batteries, shipping, duty, crashed legs in month one, operator time. Go2’s lower starting street prices still do not make it a toy. Go1’s used market is where people buy a project they cannot import parts for. Price the year of teaching, not the unboxing.
A school that wants two compact walkers should still prefer two current Go2s with a shared spare battery over a mismatched Go1-plus-Go2 fleet, unless the curriculum is already written. Mixing generations doubles the cheat sheets. Mixing a Go2 with a B2 is a different mistake: you have bought two jobs.
Import rules matter more than colourways. Confirm HS codes, lithium shipping, and whether the seller will still answer after the crate lands. A cheap Go1 with no SDK access is a remote-control dog, not an education platform. A Go2 bought from a marketplace listing that will not name the version is how you get neither LiDAR nor support. Write the configuration on the purchase order: Air versus Pro-style trims, extra battery, charger, and who owns the first broken joint.
Lineup checklist
Choose Go2 if
- This is a new compact quadruped purchase.
- You want current sensing options and a living product line.
- You can supervise every run.
Choose Go1 if
- Support and parts are documented for that exact unit.
- The discount versus Go2 is real, not a clone.
- The curriculum or existing fleet is already Go1.
Final Thoughts
Default new: Go2. Default used: Go1 only with eyes open. Compare them on Robot.help and on Go1 vs Go2 as two compact walkers — then keep B2 and Loona in other sentences.
Frequently Asked Questions
Is Go1 obsolete?
As a new default, yes you should prefer Go2. As a working education machine with parts, no.
Can I upgrade Go1 to Go2 in software?
No. These are different platforms. Do not expect a firmware miracle.
Is Go2 a good pet?
No. It is a walking robot for labs and demos.
Should a school buy two Go1s instead of one Go2?
Only with a parts plan. Two unsupported walkers is not a fleet.
Where does B2 fit?
Industrial quadruped, different mass and mission. Not this comparison.