Comparing Order Picking Guidance with Microsoft Hololens, Magic Leap, Google Glass XE and Paper.

Head-worn displays (HWDs) are an efficient and cost-effective means to guide users in order picking, a task that requires users to alternate their attention between the physical environment and the HWD's virtual image. After training 12 participants to expertise in picking, we compare three significantly different HWDs: Magic Leap One, Microsoft Hololens, and Google Glass Explorer Edition against paper pick lists (the industry standard). We find that previous findings on HWD benefits during such tasks are not reflected in all HWDs, suggesting that hardware design significantly influences efficacy. Based on experimental results and observations, we highlight challenges such as head weight, mounting, display clarity, field of view (FOV), and display position and discuss their possible effects on user comfort, user preference, task speed, and task accuracy.