RoboBoom

Lightest humanoid robots

The 24 lightest humanoid robots in our catalog by stated weight. ALLEX is the lightest at 0.7 kg; the list ends at 34 kg. 208 humanoids have a known weight.

  1. WIRobotics ALLEX humanoid robot
    WIRobotics

    ALLEX

    A 15-DoF robotic hand with smooth multi-finger motion and reliable grip strength.

    🇰🇷South Korea
    Commercial
    0.7 kg
  2. ROBOTIS OP3 humanoid robot
    ROBOTIS

    OP3

    🇰🇷South Korea
    Commercial
    3.5 kg
  3. AGIBOT QUESTER1 (Q1) humanoid robot
    AGIBOT

    QUESTER1 (Q1)

    AgiBot QUESTER1 (Q1): tiny portable humanoid, 79 cm / 4 kg, backpack-sized. Miniaturised QDD joints, full-body force control. Voice + English tutoring + dance coaching. Open SDK / HDK; zero-code block programming.

    🇨🇳China2025
    Commercial
    4 kg
  4. Zeroth Robotics Bridge humanoid robot
    Zeroth Robotics

    Bridge

    🇨🇳China2026
    Commercial
    13 kg
  5. Robomiracle Technologies Nova A1 humanoid robot
    Robomiracle Technologies

    Nova A1

    🇮🇳India
    Commercial
    15 kg
  6. Hitachi EMIEW4 humanoid robot
    Hitachi

    EMIEW4

    🇯🇵Japan2020
    Commercial
    18 kg
  7. Booster Robotics K1 humanoid robot
    Booster Robotics

    K1

    Booster K1 (Booster Robotics, 2025): compact 95 cm / 19.5 kg education + RoboCup KidSize humanoid. 22 DoF, 40-200 TOPS AI, $12,500. Boosted HTWK won RoboCup 2025 KidSize 11-0 in the final.

    🇨🇳China2025
    Commercial
    19.5 kg
  8. Noetix Robotics Dora humanoid robot
    Noetix Robotics

    Dora

    Noetix Dora: 100 cm / 20 kg compact humanoid for family chores, STEM and elder-care. 20 DoF base / 26 with optional 11-DoF gripper, 5 kg pick-and-place, 1 m/s on grass/snow/stairs. Jetson Orin + 3-depth cameras.

    🇨🇳China2025
    Pilot
    20 kg
  9. Lumos Robotics NIX humanoid robot
    Lumos Robotics

    NIX

    Lumos Robotics NIX: compact child-sized humanoid (80 cm / 20 kg) for entertainment + light service. Compact joint modules, 22.8 N·m rated / 102 N·m peak, 140 RPM. 2-3 km/h walking, 1.5-2 h runtime.

    🇨🇳China2025
    Pilot
    20 kg
  10. Rotaku Domo humanoid robot
    Rotaku

    Domo

    Affordable 90 cm developer humanoid by Rotaku (~$2,999, San Francisco). 23 DoF, ~2h battery, voice + LLM, demonstration-based whole-body policy learning. Aimed at AI/robotics researchers, students and small teams.

    🇺🇸United States2026
    Commercial
    20 kg
  11. Fauna Robotics Sprout humanoid robot
    Fauna Robotics

    Sprout

    Fauna Robotics Sprout (Jan 2026, acquired by Amazon Mar 2026): 107 cm / 22.7 kg soft-bodied developer humanoid. 29 DoF (6 arms / 5 legs / 2 neck), NVIDIA Jetson AGX Orin, ZED 2i stereo + ToF + IMU + mic array, 360° LED face. 3.5 h swappable battery. $50K.

    🇺🇸United States2026
    Commercial
    23 kg
  12. Unitree Robotics Unitree R1 humanoid robot
    Unitree Robotics

    Unitree R1

    The R1 is a 1.22 m, 25 kg humanoid with 26 DoF for hobbyists, individual developers, and research labs. It uses a multimodal large language model for speech and image recognition.

    🇨🇳China2025
    Commercial
    25 kg
  13. Apptronik Astra humanoid robot
    Apptronik

    Astra

    Upper-body humanoid robot for safe human collaboration in interactive service and manufacturing settings. It is a 100 cm, 25 kg prototype with 24 DoF and 12 hand DoF.

    🇺🇸United States2022
    Pilot
    25 kg
  14. EngineAI Robotics SAO2 humanoid robot
    EngineAI Robotics

    SAO2

    EngineAI SA02 / SAO2 (Aug 2025): anime-inspired companion humanoid for young users. 125 cm / 25 kg, 26+2 DoF, on-device LLM, dual HD cameras, high-fidelity speakers. $5,300 entry price.

    🇨🇳China2025
    Commercial
    25 kg
  15. SoftBank Robotics Pepper humanoid robot
    SoftBank Robotics

    Pepper

    SoftBank Pepper (2014→discontinued 2021): legacy semi-humanoid kiosk robot, 120 cm with wheeled base, 20 DoF, tablet on chest. Emotion-recognition pioneer; production halted 2021 but units still operate worldwide.

    🇫🇷France2014–2021
    Discontinued
    28 kg
  16. Enchanted Tools Mirokaï humanoid robot
    Enchanted Tools

    Mirokaï

    Enchanted Tools Mirokaï (Paris, 2024): 123 cm / 28 kg social humanoid on patented 3-DoF ball mobile base. 26 DoF, animated projector face, multi-LLM dialogue, 4 h battery. €17M seed, ~$30K/unit.

    🇫🇷France2024
    Commercial
    28 kg
  17. PHYBOT PHYBOT C1 humanoid robot
    PHYBOT

    PHYBOT C1

    PHYBOT C1: 128 cm / 28 kg compact embodied-AI humanoid. 25 DoF, 244 N·m max joint torque cycloidal gears. NVIDIA Jetson Orin NX + Intel Core i7. Plays badminton autonomously sub-second. ~4 h removable battery.

    🇨🇳China2025
    Pilot
    28 kg
  18. 1X Technologies NEO humanoid robot
    1X Technologies

    NEO

    A tendon-driven home humanoid for chores and natural conversation. It has a built-in LLM and 22-DoF hands.

    🇺🇸United States2024
    Pilot
    30 kg
  19. Noetix Robotics N2 humanoid robot
    Noetix Robotics

    N2

    Noetix N2: world's first humanoid with continuous-backflip capability. 118 cm / 30 kg, 18 DoF, 150 N·m peak torque, 3.5 m/s run, NVIDIA Jetson Orin (40 TOPS). $6,200 mass-production target.

    🇨🇳China2025
    Pilot
    30 kg
  20. Booster Robotics Booster T1 humanoid robot
    Booster Robotics

    Booster T1

    Booster T1: AdultSize bipedal humanoid, RoboCup 2025 champion. 23 DoF (4-DoF arms, no end-effectors), Intel i7 + Jetson AGX Orin (~200 TOPS). Push-recovery to 15 N·s, auto stand-up. 50+ research labs use it.

    🇨🇳China2025
    Commercial
    30 kg
  21. Galbot ET1 humanoid robot
    Galbot

    ET1

    🇨🇳China2026
    Commercial
    32 kg
  22. Tianhe C1
    iSoftStone

    Tianhe C1

    🇨🇳China2025
    Prototype
    32 kg
  23. Zerith Robotics Zerith Z1 humanoid robot
    Zerith Robotics

    Zerith Z1

    Zerith AI Z1: bipedal sibling to Zerith H1. 27 DoF, 150 N·m peak joint torque, EtherCAT in-house comms, AI-driven energy efficiency. Stable navigation over irregular surfaces + balance under interference. Envisioned for robotic boxing.

    🇨🇳China2025
    Prototype
    33 kg
  24. RoboParty ROBOTO Origin humanoid robot
    RoboParty

    ROBOTO Origin

    🇨🇳China2025
    Commercial
    34 kg