OpenSwim Pro comes with both MP3 and Bluetooth earphones. The main differences between OpenSwim Pro and Openrun Pro are as follows: 1. The former adds MP3 mode to Bluetooth mode, while the latter only has Bluetooth mode. 2. The former adopts ENC+DNS call noise cancellation, and the latter adopts dual noise canceling microphone + CVC algorithm noise cancellation. 3. The battery life of the former is about 9 hours in Bluetooth mode at medium volume and about 6 hours in MP3 mode at medium volume. The latter, on the other hand, has a battery life of around 10 hours at medium volume. 4. The former is IP68 waterproof and the latter is IP55 sweatproof. 5. The former takes 90 minutes to charge from 0 to 100%, while the latter takes 60 minutes to charge from 0 to 100%. 6. The internal storage capacity of OpenSwim Pro is 32GB, but the internal storage capacity of OpenRun Pro is different. 7. The former adopts 4-pin magnetic charging, and the latter adopts 2-pin magnetic charging.