Petoi Bittle X vs Sony aibo (ERS-1000)
The Petoi Bittle X costs $319 new; the Sony aibo (ERS-1000) costs ¥272,800. The aibo (ERS-1000) is taller (1'0" vs 0'4"), with 22 vs 9 degrees of freedom. Full verified comparison below, in your selected currency and units.
 PetoiBittle X |  Sonyaibo (ERS-1000) | |
|---|---|---|
| Maker | Petoi | Sony |
| Form | Quadruped | Quadruped |
| Tier | Hobbyist | Consumer |
| Availability | Shipping | Discontinued |
| New price | $319 | ≈ $1,670 |
| Est. used (modeled) | $41–$50 | — |
| Height | 0'4" | 1'0" |
| Weight | 1 lb | 5 lb |
| DoF | 9 | 22 |
| Debut | 2023 | 2017 |
| Perfect for | Research | Home |
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Frequently asked
Is the Petoi Bittle X or the Sony aibo (ERS-1000) cheaper?
Petoi Bittle X is cheaper new.
Which is bigger, the Bittle X or the aibo (ERS-1000)?
Sony aibo (ERS-1000) (1'0" / 0.293 m) is the larger of the two on this measure.
Which has more degrees of freedom?
Sony aibo (ERS-1000) (22 DoF).
Petoi Bittle X vs Sony aibo (ERS-1000): which should you choose?
You can buy the Bittle X today ($319); the aibo (ERS-1000) is discontinued. Both are quadruped humanoids. Petoi Bittle X is cheaper new. The Bittle X suits research, while the aibo (ERS-1000) suits home. Compare the verified specs above and see each model page for depreciation and resale estimates.
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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 →