Start with the inspection task
An inspection robot dog should not be selected by speed or appearance alone. Unitree A2, B2 and As2 each have their own platform features and configurations. Existing product pages describe inspection, monitoring and security applications, together with sensors, mobility and expansion. First define what the robot should record, the terrain it will cross and the equipment required. Then compare the relevant version. The model name alone does not specify which sensors, software and accessories form your solution. Umotion therefore starts with the use case and discusses a suitable platform and configuration.
A2: inspection and monitoring
The A2 page describes a platform for inspection and monitoring with IP56 protection. The data lists industrial LiDAR at the front and rear and an HD camera. Platform statistics include a maximum speed of 5 m/s and unloaded endurance of 5 hours or 20 km. The A2 family also includes wheeled A2-W versions. Check the version before applying those figures to a route or deployment. The page also lists connections such as Gigabit Ethernet, USB Type-C, CAN and RS485, providing a basis for discussing the technical connection of additional equipment.
B2: inspection and rough terrain
The site describes B2 for inspection and rough terrain. Product and application copy names IP67 protection and uses in industrial inspection, security and hazardous environments. B2-W is also included within the product family. The page shows sensor examples and an inspection platform with imagery and status information. These examples indicate the applications and expansions being discussed; they do not mean that every sensor or software function is standard in every configuration. Consult B2 specifications and options, then define the information you actually want to collect during an inspection round.
As2 and As2-W: compact and expandable
The As2 page covers As2 and As2-W. Its introduction lists 95 N·m joint modules, a 648 Wh battery and IP54 protection. Computing expansion up to 150 TOPS is described as an option. Information on seven-inch wheels, 6 m/s and obstacles up to 80 cm relates to the displayed As2-W information; do not automatically apply it to the legged version. Inspection also requires considering computing power, data processing and sensors together. The product page names SDK and APIs and lists versions and external interfaces for further technical discussion.
Compare protection and sensors separately
The existing pages list IP56 for A2, IP67 for B2 and IP54 for As2. These are different specifications, not an automatic statement of suitability for your entire inspection process. Also examine sensors, terrain, load and the intended integration. Application texts include RGB imagery, thermography and gas or acoustic sensors. That information helps define the measurement task. Discuss which combination belongs with the selected robot and version. A platform with expansion capabilities is not the same as a fully equipped measurement solution with all accessories already included.
Request a configuration for your route
Use the three product pages side by side and compare figures only when they concern the same version and conditions. Specifications are indicative and depend on configuration and manufacturer updates. Describe the inspection task, surface, any stairs, required measurements and equipment you wish to connect. Umotion offers advice, integration, training and service in the Netherlands, Belgium and Luxembourg. The product-page quote button prefills the relevant model. This turns a general model comparison into a focused enquiry without treating unspecified sensors, an industrial price or performance at your location as established facts.