Best Electronic 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

Garmin GPSMAP 67® Rugged GPS Handheld, Multi-Band GNSS, Topo Mapping, Satellite Imagery, Color Display

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

Garmin GPSMAP 65s, Button-Operated Handheld with Altimeter and Compass, Expanded Satellite Support and Multi-Band Technology, 2.6"" Color Display

SinoTrack Digital GPS Speedometer Universal Heads Up Display for Car 5.5 inch Large LCD Display HUD with MPH Speed Fatigued Driving Alert Overspeed Alarm Trip Meter for All Vehicle

SUUNTO 5 Peak – Compact GPS Sports Watch with Long Battery Life and Route Navigation

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)

Electronic Height Depth Gauge Digital Display Woodworking Ruler Measure Tool 0‑80mm Digital Height Meter Depth Caliper

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