K2 Bumblebee by Kepler vs Green by Sberbank 2025

K2 Bumblebee features a 175 cm x 60 cm x 50 cm frame weighing 75 kg with 52 degrees of freedom and hybrid serial-parallel actuators using planetary roller screws for straight-knee gait and 81.3% energy efficiency. Green has a slightly smaller 170 cm x 55 cm x 38 cm build at 50-80 kg, supporting balance-assisted walking but without specified degrees of freedom. K2 emphasizes in-house hardware for supply chain resilience, while Green focuses on modular components for varied weights.

K2 Bumblebee achieves 3 km/h walking speed with LiDAR, SLAM, GPS, and disturbance-resistant gait for autonomous navigation in warehouses. Green reaches 1.5-3 m/s via visual SLAM and LiDAR mapping with balance-assisted walking. K2 prioritizes structured industrial mobility, whereas Green supports higher potential speeds for logistics and inspection.

K2 Bumblebee includes 3D cameras, fisheye vision, up to 25 tactile sensors per finger, six-axis force-torque wrist sensors, IMUs, pressure, torque, and ultrasonic sensors, totaling over 80. Green equips RGB cameras, depth camera, LiDAR, IMU, force/torque sensors, gyroscope, accelerometer, and joint encoders. K2 offers finer tactile feedback for manipulation, while Green provides comprehensive perception for teleoperation.

K2 Bumblebee supports AI autonomous control, natural language processing, app control, and VLA+ models for semantic tasks like sorting and assembly. Green enables autonomous modes with learned behaviors and teleoperation. Both integrate Linux-based systems, but K2 adds Kepler OS with voice and motion APIs.

K2 Bumblebee operates up to 8 hours per charge with a 2.33 kWh battery, listed as 4 years in query specs, using efficient hybrid actuators. Green provides 3-5 years battery life without specified runtime per charge. K2 focuses on per-charge endurance for industrial shifts.

K2 Bumblebee suits warehouse automation, assembly assistance, hazardous operations, guided tours, and research. Green applies to manufacturing, research, logistics, infrastructure inspection, and remote operations. K2 targets structured industrial tasks, while Green extends to remote and inspection scenarios.

K2 Bumblebee runs Kepler OS, Linux-based and ROS compatible, with APIs for vision, motion, and voice, plus developer platforms like Kepler Studio. Green uses Linux-based OS with ROS 2 support and Python SDK. Both facilitate integration but K2 adds simulation tools.

K2 Bumblebee prices at $34,000-$40,000, offering 1.5x human productivity in industrial settings. Green ranges $50,000-$150,000, targeting broader applications. K2 provides lower entry cost for automation-focused deployments.

K2 Bumblebee includes emergency stop, obstacle avoidance, disturbance-resistant gait, and force feedback. Green features force limiting, collision detection, emergency stop, and redundant sensors. Both prioritize human-safe interaction in operational environments.