Apollo vs Walker S2: which robot wins?
Apptronik's Apollo against UBTech's Walker S2 — price, capability, availability, and a verdict you can act on.
| Apollo | Walker S2 | |
|---|---|---|
| EST. PRICE | Lease only | Enterprise pricing |
| HEIGHT | 5"-8"- / 173 cm | ~5′6″ / 170 cm* |
| WEIGHT | ~73 kg | ~65 kg* |
| PAYLOAD | 25 kg | ~15 kg* |
| RUNTIME | ~4 hrs (swappable) | Hot-swappable battery (self-swap) |
| DEXTERITY | Modular, swappable batteries | Dual 7-DOF arms* |
| AVAILABILITY | Commercial only | Industrial only |
| WHICHBOT SCORE | 7.9 / 10 | 8.2 / 10 |
| OUR TAKE | Built like a forklift with hands - swappable batteries, warehouse-first. A workhorse, not a roommate. | The factory workhorse from China’s most established humanoid maker — famous for swapping its own battery to work around the clock. |
* Prices are estimates from public statements and filings. Availability changes weekly.
Detailed comparison: Apollo vs Walker S2
Apollo scores 7.9/10 in our independent evaluation; Walker S2 scores 8.2/10. That 0.29999999999999893-point gap is real but not decisive — Apollo may still be the right fit depending on your use case.
Apollo is best for: Warehouse and manufacturing operators - not home buyers. Walker S2 is best for: Businesses evaluating proven factory humanoids with 24/7 ambitions.
Our scoring weighs five factors: autonomous capability, independent verification (third-party evidence scores higher than manufacturer claims), commercial deployment scale, price-to-capability ratio, and real-world availability today. Neither robot here is scored on marketing alone. Apollo and Walker S2 are both worth evaluating — the right call depends on which robot's documented strengths match your actual workflow.
CHOOSE THE APOLLO IF…
- Warehouse and manufacturing operators - not home buyers.
- Highest payload of any humanoid in this index (25 kg)
- Hot-swappable batteries = continuous shifts
CHOOSE THE WALKER S2 IF…
- Businesses evaluating proven factory humanoids with 24/7 ambitions.
- Autonomous battery self-swap enables near-continuous operation
- Real deployments: auto plants, logistics, aircraft assembly trials