Garmin Enduro 4 promises up to 90 days of battery life

Garmin has announced the Enduro 4, an endurance-focused smartwatch that pairs new training and navigation features with battery-life figures of up to 90 days in smartwatch mode and 320 hours during activities under specified conditions. The company lists the watch at $899.99 in the United States and £799.99 in the United Kingdom. The 90-day maximum depends on solar charging, Garmin says. The 320-hour activity-mode figure is based on ideal conditions with 50,000 lux of sunlight. Actual battery life will vary with use, and the available reporting does not include long-term testing of the Enduro 4. Garmin says the new model has 64GB of storage, a 50% increase in RAM and map panning that is up to 30% faster. The expanded storage provides more room for maps and music, while the processing changes are intended to improve navigation and responsiveness. The watch also adds grade-adjusted workout targets for hilly routes, stamina zones and a stamina curve to track endurance over time. A feature called Garmin Epic can combine multiple activities across an extended period into a connected record in the Garmin Connect app.