HydroDepth displays pressure-based water depth on your Garmin activity screen, together with time spent underwater or at the surface. Features: - Live depth and maximum depth in meters or feet. - Water-entry and surfacing detection, with optional vibration feedback. - Adjustable depth limits and air/underwater countdown alerts. - Water-density settings for fresh, salt, brackish, alkaline and Dead Sea water. - Saved summaries and automatic upload retries when a connection is available. - Settings refresh during an activity after synchronization. Version 4.2.0 improves how saved summaries survive failed transfers, activity changes and app restarts. Each outing keeps its own upload details, and an interrupted transfer is retried without changing the original request. A timer reset no longer asks the server to erase recorded history. Important requirements: Your watch and chosen activity profile must supply pressure readings. A built-in barometer alone does not guarantee that readings remain available underwater. Sensor behavior, firmware and water conditions affect the result. Full-version display resolution can be set to 0.01 m or 0.1 ft. Trial display resolution is 0.1 m or 1 ft. These are display steps, not a guarantee of measurement accuracy. HydroDepth is not a certified dive computer. Compatibility in 4.2.0: This update excludes Instinct 3 Solar 45 mm, Instinct E 40 mm and Instinct E 45 mm because the revised upload system does not fit their 32 KB data-field memory limit. Check the Compatible Devices tab for this version's device list. Older queued records that lack their original session details are kept, but cannot be uploaded automatically. If Pending upload or UPLOAD ERROR remains after reconnecting, please contact me. Storage is finite, and measurements lost before this update cannot be reconstructed by it. Full features use the FeliXGear subscription system. For activation, current plans and help, visit https://felixgear.net. Questions or problems? Email [email protected] with your watch model, firmware version and what happened. Your feedback helps me improve the app.

v4.2.0 More reliable saved-data uploads: - Saved summaries remain queued until the server confirms the matching request. - Failed transfers retry the original packet, including after an app restart. - Activity and account changes keep separate session details. - Timer resets no longer request deletion of recorded history. - Older queued data without session details is preserved for investigation. Instinct 3 Solar 45 mm and Instinct E 40/45 mm are excluded from this update because their 32 KB data-field memory limit is insufficient. Earlier release notes: v4.1.0 Added live settings refresh: all changes now apply instantly during activity without restarting the app New supported devices: Venu X1 and Edge MTB v4.0.3 Incremented data saving frequency in OFFLINE mode from 0.1 Hz to 1 Hz v4.0.2 Fixed precisions v4.0.1 Fixed: No more data loss in offline mode! If you finish your workout while your watch is offline, simply start a new session when you're back online. Your previous offline activity data will automatically upload and appear on your dashboard. v4.0.0 Major new features and improvements: Online Dashboard: - Secure web dashboard for subscribers to review, analyze, and download all session data - including interactive charts and route maps. - Login here: https://felixgear.net (Subscriber Login) Download Your Data: - Each session can now be downloaded in JSON format directly from the dashboard for further analysis or backup. Powerful In-App Settings: - Choose water type: fresh, salt, alkaline, brackish, or Dead Sea (for highly accurate depth calculation). - Precision control: select between standard or high-precision display (e.g., 0.1m or 0.01m steps). - Switch units: metric (meters) or imperial (feet). - Set custom depth alerts and air/water interval notifications. Smarter Offline Storage: - Never lose dive data! The app automatically merges and compresses summaries during long offline periods, so you can record hours of activity without losing detail. Interactive Map: - If your session contains GPS data, you'll see your route and measurement points on an interactive map with all details just a click away. Privacy & Data Management: - All data is 100% private and only visible to you. Sessions and samples older than 7 days are automatically deleted-download important data before it expires! User Experience Improvements: - New, clearer alerts and warning messages on the dashboard. - Smoother login and session handling. v3.0.0-3.0.2 - New graphical display: water depth shown with color background, countdown as an animated arc. - Larger and clearer numbers and information on the screen. - More transparent and user-friendly layout with real-time data. - Optimized drawing for faster and smoother performance. - All previous features remain (Donor ID, alerts, countdowns, unit selection, etc.). - Settings only take effect after synchronization. - API level is 5.0.0, older devices are not supported.