Expedition A3 (远征A3) vs Walker S2
AgiBot (Zhiyuan Robotics) Expedition A3 (远征A3) and UBTECH Robotics Walker S2 compared on the same basis. Each value shows how sure we are of it, so a reported figure is not read as an official one.
- Height: Expedition A3 (远征A3) 173 cm · Walker S2 176 cm (3 cm apart)
- Weight: Expedition A3 (远征A3) 55 kg · Walker S2 70 kg (15 kg apart)
- Total degrees of freedom: Expedition A3 (远征A3) 31 · Walker S2 52 (21 apart)
- Payload: Expedition A3 (远征A3) 3 kg · Walker S2 15 kg (12 kg apart)
| Item | Expedition A3 (远征A3) | Walker S2 |
|---|---|---|
| Company | AgiBot (Zhiyuan Robotics) | UBTECH Robotics |
| Stage | On sale | Production |
| Height cm | 173 Official | 176 Reported |
| Weight kg | 55 Official | 70 Reported |
| Total degrees of freedom | 31 Official | 52 Reported |
| Actuation | Electric Official | Electric Reported |
| Walking speed km/h | — | 7.2 Reported |
| Top speed km/h | 6.5 Estimate | 7.2 Reported |
| Hand DoF (per hand) | — | 11 Reported |
| Fingers | — | 5 Reported |
| Payload kg | 3 Reported | 15 Official |
| Runtime h | 10 Official | 2 Reported |
| Battery kWh | 1.15 Official | 2.3 Reported |
| Battery swap | Swappable (hot-swap, about 10 seconds) Official | Autonomous hot-swap (dual batteries, about 3 minutes) Official |
| Compute unit | Rockchip RK3588-based board (runs RKNN policies on the NPU). A3 Ultra uses 2 RK3588 + NVIDIA Thor Estimate | — |
| Cameras | — | 2 Official |
| Sensors | Binocular RGB cameras (1920×1536), shoulder touch sensor, 360° microphone array, UWB positioning (±10cm) Official | Pure RGB binocular stereo vision in the head (deep-learning depth estimation) Official |
| AI model | End-to-end conversational large model (responds to context without a wake word, called by a shoulder tap) + 智元灵创 motion creation platform; for whole-body control, the NVIDIA GR00T-WholeBodyControl 'SONIC' adaptive policy is published Reported | 'Dual loop' of Co-Agent (industrial humanoid agent) + BrainNet 2.0 swarm intelligence, Thinker physical AI foundation model and Thinker-WM industrial world model Official |
| SDK & dev tools | Supports custom development through open interfaces (SDK name not disclosed) Official | — |
| Price | $63,999 Reported | $90,000 Rumor |
| Production & shipments | First commercial deliveries 2026-04 (Qihong Culture & Tourism, Shuka Technology); first-half volume reported sold out. AgiBot overall shipped about 9,700 units (Counterpoint, 43%) / 8,600 units (IDC, 35%) in H1 2026, ranked first worldwide; 20,000th robot (A3 Ultra) shipped 2026-09 Reported | 1,079 full-size humanoids sold in 2025 (revenue 821 million yuan, +2,203.7%), Walker S annual capacity of 6,000+ units at the end of 2025. 921 units sold in H1 2026 (revenue 590.3 million yuan, 46.5% of group revenue). Target of 10,000 full-size units produced in 2026 Reported |