Sennheiser IE 100 Pro vs Shure SE215 Pro

Both are wired in-ear monitors built for stage and studio use, and both rely on passive isolation rather than electronics. The Sennheiser IE 100 Pro is lighter and has a detachable cable with an optional Bluetooth connector, so it doubles as a casual listening set. The Shure SE215 Pro has the longer track record, a Kevlar-reinforced cable and a more bass-forward tuning that owners and reviewers describe as fun and durable. Pick the Sennheiser for a neutral monitor sound and lighter fit; pick the Shure for ruggedness and a warmer, punchier sound.

• Choose the Sennheiser IE 100 Pro if you want a neutral, low-impedance monitor that is easy to drive and can gain wireless and call support through the optional Bluetooth connector.
• Choose the Shure SE215 Pro if you want a proven, sweat-resistant in-ear with a tough Kevlar-reinforced cable and a warmer, bass-rich sound for travel and everyday listening.