The most fundamental design split here is the fit style: the Anker Soundcore P40i uses a traditional in-ear form factor, while the Shokz OpenFit 2 Plus adopts an open-ear design. In practice, this is a lifestyle decision as much as a technical one. In-ear buds create a seal inside the ear canal, which typically improves passive noise isolation and bass response, but can cause fatigue or discomfort during extended wear. Open-ear designs sit outside the canal entirely, preserving ambient sound awareness — a meaningful safety advantage for outdoor runners or commuters who need to stay alert to their surroundings.
On durability, both are water resistant, but the Shokz edges ahead with a full IP55 rating versus the Anker's IPX5. The key difference is that IP55 includes a dust-resistance rating (the first ″5″), while the ″X″ in IPX5 means dust protection was simply not tested. For gym or outdoor use, dust ingress is a real concern over time, so the Shokz carries a slight long-term durability advantage here. Both handle sweat and water splashes equally well under the shared ″5″ water rating.
Two smaller but notable differentiators: the Anker includes a display (likely an LED indicator for battery or connection status), which the Shokz lacks, offering at-a-glance feedback without reaching for a phone. Conversely, the Shokz bundles wingtips, which help anchor open-ear buds securely — especially relevant given that open-ear designs don't use a canal seal for natural retention. Overall, neither product is a clear winner across the board: the Shokz OpenFit 2 Plus holds an edge in protection rating and situational awareness design, while the Soundcore P40i suits users who prioritize sound isolation and onboard status feedback.