Immersive virtual reality (VR) using a VR headset has the potential to support or even replace traditional workplaces. However, supporting continuous and long-term VR experiences within a workplace is still a challenge, mainly due to the user’s visual isolation. In order to address this, we introduce an improved VR headset called the Workspace-VR headset system. We installed two visual channels using an external camera and transparency controllable liquid-crystal display (LCD) panels for the user to perceive the surrounding real world. We refer to these as Video-See-Through (VST), and Dynamic Immersion (DI), respectively. We compared three conditions: DI only, VST only, and a combination of VST and DI, for performance and comfort on a phone-based texting task. We found that of the three conditions, DI offered significantly higher smartphone texting performance, and also the highest level of comfort. We also found that the results for the combination of VST and DI were mixed, showing a higher level of VR sickness than DI or VST alone. Based on our findings, we suggest that a VR headset with DI technology could be a viable solution to reduce the visual isolation problem, and add efficiency and comfort to the VR experience in the workplace.