Compare · head to head

Apptronik Apollo (Apollo 2) vs UBTECH Walker S2

Data confidence: medium / medium · reviewed by Andrei Sheshenin · how we score

UBTECH Walker S2 ranks higher overall (55 vs 42, a 13-point gap). UBTECH Walker S2 is ahead in locomotion, hands, deployment; they score the same in manipulation, autonomy. Apptronik Apollo (Apollo 2) is cheaper: about $50,000 vs $84,507.

#22

42score

Apptronik Apollo (Apollo 2)

Apptronik · USA · Walks on legs

Height173 cm

Weight73 kg

Joints?

Lifts25 kg

Speed?

Battery4 h

Price$50k reported

Pilots

55score

UBTECH Walker S2

UBTECH · China · Walks on legs

Height176 cm

Weight70 kg

Joints52

Lifts15 kg

Speed7.2 km/h

Battery2 h

Price$85k-$99k reported

On sale

Apptronik Apollo (Apollo 2)		UBTECH Walker S2
Body
173 cm	Height	176 cm
73 kg	Weight	70 kg
Legs	Moves on	Legs
?	Joints (degrees of freedom)	52
proprietary electric linear actuators (original Apollo)	Actuators	Self-developed joints; waist +90/-35 deg pitch, +/-162 deg rotation
Movement
?	Top speed	7.2 km/h
Hands and lifting
?	Joints per hand	11
5	Fingers	5
25 kg	Carries (both arms)	15 kg
Battery
4 h	Runtime per charge	2 h
swappable batteries for 7x22 operation; opportunity charging and tethering	Charging	Autonomous hot battery swapping, 24/7 operation
Brain and senses
Artemis (autonomy stack); Gemini Robotics (Google DeepMind partnership)	AI model	BrainNet 2.0 with Co-Agent
force-control safety architecture with perimeter zones	Sensors	Binocular stereo vision
Fleet Connect	Software / SDK	Not disclosed
Buying it
$50k reported	Price	$85k-$99k reported
Reported target under 50,000 USD per unit; CEO said cost comparable to a new car; no list price	Price details	Media report 600,000-700,000 RMB per unit. RobotShop special order 246,600 USD. 2025 revenue/units implies ~761,000 RMB average. Runtime ~2 h walking per one source.
fleets deployed at Robot Park and customer sites	Availability	Mass production and delivery since 11.2025
Pilots	Status	On sale
Not disclosed	Units shipped	~1079 Walker S series (2025)
Mercedes-Benz; GXO; Jabil	Customers	BYD, Geely, FAW-VW, Dongfeng, Foxconn, Airbus, data collection centers (Jiujiang, Guangxi)
delivering kits to assembly lines; tote handling	Used for	Automotive and electronics factory logistics, sorting, quality inspection, training data collection
What it has shown (our assessment)
Walks slowly on flat floors	Locomotion	Handles stairs and uneven ground
Two-handed work in real settings	Manipulation	Two-handed work in real settings
Basic hand, under 6 joints	Hands	Hand with 6-11 joints
Learned AI policies in demos	Autonomy	Learned AI policies in demos
Paid pilots with customers	Deployment	100+ robots at customers

Watch them

Apptronik Apollo (Apollo 2): Welcome to Robot Park, where Apptronik is building the future with Apollo 2 — Welcome to Robot Park, where Apptronik is building the future with Apollo 2 · Apptronik on YouTube

UBTECH Walker S2: Walker S2 - The World's First Humanoid Robot Capable of Autonomous Battery Swapping — Walker S2 - The World's First Humanoid Robot Capable of Autonomous Battery Swapping · UBTECH Robotics on YouTube

What each has shown

Apptronik Apollo (Apollo 2): delivery of components and kits to Mercedes-Benz, GXO pilots

UBTECH Walker S2: Autonomous battery replacement in 3 minutes, carrying boxes in automotive factories

FAQ

Which ranks higher, Apptronik Apollo (Apollo 2) or UBTECH Walker S2?

UBTECH Walker S2 ranks higher overall (55 vs 42, a 13-point gap).

Can you buy Apptronik Apollo (Apollo 2) or UBTECH Walker S2?

Apptronik Apollo (Apollo 2): in customer pilots. UBTECH Walker S2: on sale.

Which costs less, Apptronik Apollo (Apollo 2) or UBTECH Walker S2?

Apptronik Apollo (Apollo 2) about $50,000; UBTECH Walker S2 about $84,507.

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