8 Most Compact Humanoid Robots in 2026

At 94 cm and 12 kg, Bumi is the smallest full humanoid in this list, roughly the size of a young child, so it is easy to carry between a classroom and a lab. Noetix gave it arms that carry 1.5 kg each and a walking speed of 0.8 m/s, slow enough to follow on foot. A 200 Wh battery gives about 1.5 hours of use. More than 100 units sold within an hour of its October 2025 launch, a sign of strong interest in small humanoids.

NAO is the smallest robot on this list: a 58 cm, 5.48 kg humanoid with 25 degrees of freedom and hands built for gesturing. Battery life is about 1.5 hours, enough for a class or a demo. Its size makes it easy to carry between classrooms and labs. SoftBank Robotics' NAO was chosen in 2007 as the standard robot of the RoboCup Standard Platform League, the first production units shipped in March 2008, and NAO6 added a larger battery in 2018.

Noetix's E1 is a compact biped at 1.36 m tall and 36 kg, with 21 or more degrees of freedom, a walking speed of 1.2 m/s and arms that carry 5 kg each. A 48 V, 9 Ah battery gives one to two hours, and modular expansions let buyers adjust the robot. It sees in 3D through two depth cameras. It brings a nearly human-height body to classrooms and labs. The E1 took silver in the solo dance event at the Global Humanoid Robotics Games in August 2025.

Noetix's N2 (Athlete) packs athletic performance into a 118 cm, 30 kg body. Heavy joints sit close to the torso to keep the limbs light, which helps it run at up to 12.6 km/h, fast for its size, and perform backflips. Its compact frame is easy to transport to events and competitions. After its second-place finish in the Beijing half-marathon, the orders that followed led Noetix to aim for 2,000 robots by the end of 2025. Each arm carries 5 kg.

Unitree's R1 stands 123 cm tall and weighs about 27 kg, making it one of the smallest humanoids with adult proportions that can still run, at up to 9 km/h. One person can carry it between rooms or pack it for a demo. The small frame still fits 26 degrees of freedom, enough for cartwheels and handstands. The compact size comes with limits: active operation lasts about an hour per charge, and there is no LiDAR for mapping larger spaces.

Unitree's G1 is a compact humanoid that stands about 1.3 m tall, small enough to move around a lab or classroom with one person. Unitree designed its legs and waist to fold for storage and transport, which few full humanoids allow. Despite the size it has up to 43 degrees of freedom and a full sensor set with LiDAR and depth camera. At 35 kg it is heavier than the smallest robots in this group, but it is the most widely used of them.

Booster Robotics' K1 is one of the lightest humanoids here at 19.5 kg, a size chosen for robot soccer. The company built it to the RoboCup KidSize rules, and it won that league at RoboCup 2025 in Brazil in July, before its commercial launch on October 21, 2025. Its 9-axis IMU keeps it upright while kicking, and a microphone array lets it respond to voice commands. Short matches suit its battery, which lasts up to 80 minutes in the Education version.

AgiBot's X2 is a compact 35 kg biped with 25 degrees of freedom: five per arm, three in the waist and six per leg. It runs at up to 1.8 m/s, carries up to 3 kg in specific poses and uses an interactive RGB camera, a 6-axis IMU and a microphone for voice control. A roughly 500 Wh swappable battery lasts about two hours. AgiBot launched the Lingxi X2 in Shanghai on March 11, 2025, and an X2 became its 5,000th robot on December 8, 2025.