COROS App 4.0: A Major Update Enhancing Functionality and Experience

COROS has launched App 4.0, a major software update introducing a much-needed visual overhaul and new features for the COROS mobile app, its wearables, and the COROS DURA cycling computer. The update is now available in public beta, with a full rollout expected later in the month.

Streamlined Interface and Enhanced Usability

Refined Design and Navigation

App 4.0 introduces a cleaner, more modern interface. Sharper icons and refined layouts aim to improve readability and reduce navigation time. The four main tabs remain:

• Progress: Tracks daily metrics like workouts, sleep, HRV, steps, and calories.
• Activities: Offers access to workout history and statistical trends.
• Explore: Provides a route planner with map-based tools for sending routes to devices.
• Profile: Centralises device settings, third-party integrations, and now includes device storage management for maps, audio, and other content.

Native Training Plan Integration

Previously accessed via the web, COROS training plans are now integrated directly within the app, allowing us to browse, download, and manage plans without leaving the mobile interface.

AI Support with “Cara”

A new AI-powered assistant, Cara, is built into the app to handle frequently asked questions, offer device guidance, and streamline support. Though limited to non-training queries, Cara represents COROS’s first step into AI-enhanced assistance.

Key Watch Firmware Enhancements

The App 4.0 release is accompanied by a firmware update for most COROS watches, introducing new training tools and interface improvements, summarised here:

• Real-Time Voice Alerts: Audio feedback for pace, distance, nutrition reminders, and navigation is now supported via headphones or the phone speaker. Available languages include English, French, Chinese, Japanese, and Spanish.
• On-Watch Strength Exercise Animations: Strength training workouts now display animated exercise demonstrations directly on the watch, minimising reliance on the phone. Watch owners can also edit repetitions and weight during workouts.
• Redesigned Control Centre: The updated control interface features touch-friendly buttons for quick access to functions like Do Not Disturb and Night Mode.
• Expanded Sport Modes: The update adds 10 new sport profiles, including yoga, pilates, and tennis.
• Apple Maps Integration: Send POI locations from Apple Maps directly to the COROS app to create routes on the fly.
• Heat Strain Index for CORE Sensors: A new metric provides insights into environmental heat stress using compatible CORE sensors.
• Improved MIP Display Contrast: Devices with Memory-In-Pixel (MIP) screens—excluding PACE Pro—benefit from enhanced font clarity and edge visibility.

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Upgrades for the COROS DURA bike Computer

The DURA bike computer also sees substantial improvements:

• Turn-by-Turn Navigation with Street Names: Now includes precise street names for each turn, enhancing urban navigation.
• Flexible Route Recalculation: Offers three options—automatic, manual, or off—for handling route deviations.
• Topographic Maps: New elevation contour overlays help anticipate terrain changes.
• Audio Alerts: Like watches, the DURA can issue real-time audio notifications for performance metrics and navigation.
• Weather Data: Live weather information is now available on the main screen.
• Customizable Auto-Pause: Define a speed threshold for triggering auto-pause during rides.

Additional DURA Enhancements

• Reversible route directions
• Support for 11-32T (X12) electronic shifting
• Direct training plan downloads from the app
• Improved speed stability at low velocities
• More accurate active calorie estimates using power data
• Increased data pages (from 6 to 10)

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Installation and Availability

The update is currently offered through a public beta program:

• iOS – must install the latest COROS app, join the beta via TestFlight, and update their device firmware.
• Android – join the beta via a provided link and update the firmware accordingly.

The official release to the App Store and Google Play is scheduled for mid-to-late July, pending beta feedback. 

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Security Updates and Bluetooth Vulnerabilities

This release’s separate but significant aspect addresses security flaws in COROS’s Bluetooth stack. These vulnerabilities, first exposed by this site in June, could enable attackers to hijack accounts, manipulate device settings, intercept notifications, or interrupt ongoing activity recordings under specific conditions (e.g., the device not connected to a phone).

COROS has now patched the most critical Bluetooth pairing vulnerabilities in the App 4.0 update, with additional security fixes expected by August. My recommendation is to update as soon as you can

Take Out

COROS App 4.0 marks a notable step in the company’s software evolution, combining experience improvements with meaningful functional upgrades across its ecosystem.

In some ways, Coros has made more sensible inroads into AI than Garmin, choosing easier, low-hanging fruit. It must be easier to add AI to relatively static information like a help system than to your dynamically changing sports parameters and the sports science behind them required for interpretation.

As usual, Coros has ticked off several small-scale features in its progress toward those offered by Garmin – things like reversing a route and map contours are a great, but long overdue addition. Contrast that to the POI syncing from Apple Maps, a feature competitors are also working on this year.

Perhaps the change I was most looking forward to was the visual re-design, which I would have previously classed as somewhat ‘visually naive’. Well, the app appears to follow standards similar to the competition’s. It looks much better, although one issue with copying what others have done is that your product no longer stands out. The interfaces on the watches probably still need improving to be more credible for 24/7 use on your wrists.

 

Last Updated on 29 January 2026 by the5krunner