10 Best Altimeters 2025 in the United States

The Casio Men's Pro Trek PRW-3500T-7CR is a feature-packed altimeter suitable for outdoor enthusiasts. Its solar-powered functionality ensures a reliable power source, reducing the need for frequent battery changes. The accuracy of the altimeter is notable, with a measuring range from -700 to 10,000 meters, making it versatile for various altitudes. The watch employs barometric pressure for altitude measurement, which is generally reliable but can be affected by weather changes. Unlike GPS-based altimeters, it may require frequent calibration for optimal accuracy.

The Casio Men's PRO Trek PRW-6600Y-1A9CR watch is a versatile tool that combines multiple functions useful for outdoor enthusiasts. As an altimeter, it uses a barometric sensor to measure altitude, offering reasonable accuracy for most outdoor activities. The altimeter can record up to 30 altitude readings, which is handy for tracking changes over time. However, it might not be as precise as GPS-based altimeters for highly detailed altitude measurements. The watch features a Tough Solar battery, ensuring long battery life by harnessing solar power, which is beneficial for extended trips without access to charging facilities. Its 100M water resistance makes it suitable for swimming and snorkeling but not for diving.

The Casio Men's GW-9400-1CR 'Master of G' Stainless Steel Solar Watch is a robust timepiece tailored for enthusiasts of exercise and fitness, featuring a durable resin material and a sizable 53mm case diameter. Its barometric altimeter provides dependable accuracy, which is essential for tracking altitude during outdoor activities. The watch is solar-powered, offering extended battery life without the need for frequent recharging, a notable advantage for long outdoor excursions.