Some holders come with smart tracking. They connect with your smartphone and remind you to drink water at the right time. These reminders are very helpful for people with busy schedules. Even if you are stuck in meetings or working on a project, you won’t forget to drink water. Also, these holders often come with storage pockets. You can carry other items like your phone, wallet, or ID cards. This makes them great for gym lovers or people who go for long walks or hikes.