Petoi Bittle X vs Unitree A2
The Petoi Bittle X is available to order now at $319. The Unitree A2 is listed at $40,900, but we couldn’t confirm it can be ordered now. The Unitree A2 is 46 cm taller.
| Petoi Bittle X | Unitree A2 | |
|---|---|---|
| Status | Orderable now | Not confirmed orderable |
| Autonomy | Developer platform | Developer platform |
| Price (USD) | $319 | $40,900 |
| Height | 11 cm | 57 cm |
| Weight | 0.3 kg | 42 kg |
| Payload | — | 25 kg |
| Battery | 7 Wh | 907 Wh |
| Runtime | 1 h | 3 h |
| Joints (DOF) | 9 | 12 |
| Walking speed | — | 0–3.7 m/s |
| Top speed | — | Up to about 5 m/s |
| Sources | petoi.com, petoi.com all facts | robotshop.com, generationrobots.com, unitree.com all facts |
A teal edge marks the better figure. The cheaper price is marked only when both robots can be ordered. "—" means the maker does not publish it. Runtime is not ranked because ranges and conditions vary. Last full check: Oct 24, 2026. Petoi Bittle X: Offer/status checked Oct 24, 2026. Unitree A2: Offer/status checked Oct 27, 2026.
To scale, next to a 175 cm person.
Key differences
- Both are labelled developer platform: you program what it does.
- The Unitree A2 weighs 41.6 kg more (42 vs 0.3 kg).
- Published runtime: Petoi Bittle X, 1 h; Unitree A2, 3 h. Conditions vary; these figures do not establish which runs longer in the same use.
- Sold to US buyers: Petoi Bittle X, yes; Unitree A2, not stated.
Petoi Bittle X in brief
The Petoi Bittle X is available to order now at petoi.com for $319. The seller page gives no delivery wording.
Petoi sells Bittle X as a robot dog to build and code. You program it in blocks, Python or C++, or control it by app, remote or voice. (petoi.com)
Unitree A2 in brief
The Unitree A2 is listed for $40,900, but we couldn't confirm it can be ordered now.
Unitree A2 is a quadruped for inspection, logistics and research teams. The Pro adds mapping and self-navigation, and owners can program it. (generationrobots.com)