Sony aibo (ERS-1000) vs Unitree Robotics B2
The Sony aibo (ERS-1000) costs ¥272,800 new; the Unitree Robotics B2 has no public price yet. The B2 is taller (2'1" vs 1'0"). Full verified comparison below, in your selected currency and units.
 Sonyaibo (ERS-1000) |  Unitree RoboticsB2 | |
|---|---|---|
| Maker | Sony | Unitree Robotics |
| Form | Quadruped | Quadruped |
| Tier | Consumer | Enterprise |
| Availability | Discontinued | Shipping |
| New price | ≈ $1,670 | — |
| Est. used (modeled) | — | — |
| Height | 1'0" | 2'1" |
| Weight | 5 lb | 132 lb |
| DoF | 22 | — |
| Debut | 2017 | 2023 |
| Perfect for | Home | Manufacturing, Inspection & security |
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Frequently asked
Is the Sony aibo (ERS-1000) or the Unitree Robotics B2 cheaper?
Only one of the two has a published price, so a like-for-like price comparison isn't possible yet.
Which is bigger, the aibo (ERS-1000) or the B2?
Unitree Robotics B2 (2'1" / 0.645 m) is the larger of the two on this measure.
Sony aibo (ERS-1000) vs Unitree Robotics B2: which should you choose?
You can buy the B2 today; the aibo (ERS-1000) is discontinued. Both are quadruped humanoids. The aibo (ERS-1000) suits home, while the B2 suits manufacturing and inspection & security. Compare the verified specs above and see each model page for depreciation and resale estimates.
More comparisons
Used-value figures are clearly-labeled placeholder estimates from a tier-rate model — not data-backed appraisals. Specs and prices are verified against each manufacturer. How we value → · Build your own comparison →