Tank M4 Silver 10ATM Freediving Offline Maps

Stay connected, track your health, and explore with confidence using this rugged 10ATM GPS Smart Watch. Built for adventure and everyday wear, it combines offline maps, freediving support and advanced health tracking in a tough stainless steel design.

Whether you’re diving, hiking, training or working long shifts, this watch is made to keep up.

Key Features

• 10ATM & 100m Waterproof Rating – Designed for freediving (up to 45m), scuba and serious water sports
• Offline Maps with Real-Time Navigation – Topographic and contour maps built in, no phone signal required
• Dual-Band GPS (L1+L5) – Accurate positioning with 6 satellite systems for hiking, trail running and outdoor adventures
• 24/7 Health Monitoring – Tracks heart rate, blood oxygen, stress, mood and sleep (including REM and naps)
• 183 Sports Modes – From gym workouts to outdoor training, with smart activity recognition
• Massive 500mAh Battery – Up to 15 days typical use, 9–10 days heavy use, and up to 22 hours continuous GPS

Specifications

• Display: 1.96" AMOLED, 410 x 502 resolution
• Brightness: Up to 1,000 nits
• Battery Capacity: 500mAh
• Battery Life: Up to 15 days typical use
• Continuous GPS: Up to 21–22 hours
• Charging Time: Approx. 2 hours
• Water Resistance: 10ATM & IP69K (up to 100m)
• Dive Modes: Freedive, Scuba, Gauge
• Bluetooth: Version 5.3
• Storage: 32GB
• Wrist Fit: 150–240mm
• Dimensions: 50.5 x 42.5 x 13mm
• Weight: 80g
• Strap Width: 22mm detachable silicone band
• Compatibility: Android 7.0+ and iOS 14.0+
• App Support: Compatible with Apple Health, Google Fit, Samsung Health and Strava

Package Contents

• 1 x Rugged GPS Smart Watch (Silver)
• 1 x Magnetic Charging Base
• 1 x User Manual

What Makes This a Smart Buy:

You’re getting dive-ready durability, offline GPS mapping and premium health tracking in one tough, everyday wearable. It’s built for serious adventure but just as practical for daily fitness and staying connected — making it outstanding value for active Australians.