The Lian Li O11 Vision is the objective winner of this comparison, securing five out of eight total specification categories. Its most impactful advantage over the Lian Li O11 Air Mini is its storage capacity, offering 100% more 2.5" drive bays. This superior internal configuration provides significantly more room for mounting solid-state drives, making the Vision the more versatile option for users prioritizing high-density storage setups within their system build.

Users who require extensive storage options should choose the Lian Li O11 Vision for its expanded 2.5" bay count. Conversely, the Lian Li O11 Air Mini is the better choice for builders looking to save on additional hardware, as it provides 100% more included fans than the Vision. Selecting the Air Mini allows for immediate out-of-the-box cooling performance without the need to purchase supplementary case fans separately.