Check what the stated weight includes
Ask whether the device weight includes the battery, straps and accessories, and whether it matches the displayed version. Different configurations cannot be compared directly. Figures here come from the supplied presentation; verify the current version.
Assistance figures and user experience
N·m measures torque. It does not directly describe how much weight a device can carry or how much effort it saves. Ask about operating modes and test conditions, then use a supervised trial to understand how assistance feels.
Read battery life with its conditions
Battery ranges are not fixed durations guaranteed for each session. Ask about the battery, operating mode, activity conditions and testing method, as well as charging. For longer outdoor plans, prepare according to the manual and your actual circumstances.
Compare a set of details, not one number
Record the model, weight definition, assistance modes, battery-test conditions, fit range and trial impressions. Verify the information, then compare the experience. A single number cannot determine personal suitability.