HCI3-P0 Adachi Rei vs Unitree G1
Mechanical Girl vs Unitree Robotics — specs, price, and data-backed comparison.
QUICK TAKE
- HCI3-P0 Adachi Rei offers the lighter build (20 kg vs 35 kg).
SPECIFICATIONS COMPARED
| HCI3-P0 Adachi Rei | Unitree G1 | |
|---|---|---|
| Company | Mechanical Girl | Unitree Robotics |
| Category | Humanoid | Humanoid |
| Price: | Not announced | $13,500 |
| Released: | — | 2024 |
| Weight | 20 kg | 35 kg |
| Payload | — | 2 kg |
| Degrees of Freedom | — | 23 |
| Battery Life | — | About 2h |
| Charging Time | — | Approx. 2 hours |
| Connectivity | — | Wi-Fi |
| Software / AI | — | Unitree humanoid stack |
Buying guides and prices
FREQUENTLY ASKED QUESTIONS
What is the difference between the HCI3-P0 Adachi Rei and the Unitree G1?
HCI3-P0 Adachi Rei is made by Mechanical Girl, while Unitree G1 is made by Unitree Robotics. Both are humanoids, so the differences come down to price and specifications.
Which is cheaper, the HCI3-P0 Adachi Rei or the Unitree G1?
The Unitree G1 is listed at $13,500; pricing for the HCI3-P0 Adachi Rei has not been publicly announced.

