Best Altimeters

Military GPS Smart Watch: 1.45” IPS Screen, Built-in GPS, Altimeter, Barometer, Compass, Health Monitoring, Games, Long Battery Life, 100+ Sports Modes, Waterproof, AI Voice Assistant, Android/iOS

CakCity Mens Digital Pocket Watch with Chain Waterproof Outdoor Fishing Clip on Watches with Weather Altimeter Barometer Thermometer Stopwatch, White, Digital

Military Smart Watch: 1.43” Retina AMOLED, Built-in Compass, Altimeter, Barometer, Flashlight, Health Monitoring, Long Battery Life, 100+ Sports Modes, Waterproof, AI Voice Assistant, Android/iOS

BME280 3.3V Pre-Soldered High Precision Altimeter Atmospheric Pressure, Temperature, and Humidity GY-BME280-3.3 Sensor Module for Raspberry Pi, Arduino, and Other MicroControllers

AIOMEST AI-100WM Handheld Wind Speed Chill Temperature Meter Tester, Digital Anemometer for Air Flow, Velocity, Air Pressure, Humidity Altimeter Gauge

North Edge Apache Tactical Sports Watches for Men Digital Outdoor Survival Military Compass Rock Solid Digital Watches with Durable Band, Steps Tracker Pedometer Calories (Green)

Sun Company Digital Zipogage - Compact Zipperpull Digital Thermometer | for Skiing, Snowboarding, Cold-Weather Camping, Snowshoeing, or Any Outdoor Activity

Digital Anemometer Barometer AP-007WM Altimeter Gauge, Handheld Anemometer for Wind Speed/Temperature with Wind Chill & Relative Humidity, Altitude, Barometric Pressure measure for HVAC CFM Shooting

Lizipai Pocket Altimeter, Clinometer, Battery-Free Altimeter, Professional Aluminum Accurate Altimeter, Compact Handheld Clinometer for Height & Slopes Angles Measuring, Silver

Wilderness Navigation: Finding Your Way Using Map, Compass, Altimeter & GPS, 3rd Edition