Stop bragging. The Garmin speedometer is so useless that you can't even use a mobile phone to create a route book. After creating the route book on a computer, it takes 3-5 minutes to load it, and it takes 2-3 seconds to switch between dashboards. The climbing planning is often inaccurate, and the slope response is no different from that of a 100-meter speedometer. The speaker is prone to water damage, and after-sales maintenance is particularly slow. There are few users in China, and the price is extremely unreasonable. In 2024, charging is extremely slow, and the training content is virtually non-existent. Sharing route books is very troublesome. The only good thing is that messages on the phone can be displayed on the speedometer, but there are often many junk messages popping up! Data often cannot be imported into Shadow Stone, and synchronization failure leads to Shadow Stone crashing! It's 2024, Garmin! Wake up! Your packaging box looks very cheap at first glance!