Nextmug Ultra (24 oz.)

The Nextmug Ultra 24 oz warms large volumes evenly with app-free, one-button control and internal heating that prevents bitter hotspots. Safety features include liquid detection, overheat protection, controlled charging, and automatic shutoff for confident daily use. With the longest runtime in the lineup, the Ultra maintains steady temperature for extended periods, making it ideal for all-day sipping and fewer refills. Its increased capacity supports warm comfort throughout long workdays or home routines. Ideal for heavy drinkers, remote professionals, and anyone who prefers maximum volume with dependable warmth, the Ultra keeps your drink consistent without requiring apps or connectivity. Designed and tested in Colorado, Nextmug uses recyclable packaging and provides responsive U.S.-based customer support.