# COROS APEX 4 > COROS APEX 4 - premium GPS watch with titanium bezel around the display and sapphire glass. Available in two sizes (46 mm and 42 mm) with battery life up to 65 hours in GPS mode. Third generation MIP touchscreen display, new third Action key button, dual microphone with noise cancellation, speaker for audio alerts and hands-free calls. New features like voice notes (Voice Pins), detailed offline maps with street and area names, GPS-tagged photos and videos on route, and 3D virtual flyover. > *(source: [ralpu.sk](https://ralpu.sk/en-eu/products/coros-apex-4))* --- ## Product Details - **Sizes:** 46 mm and 42 mm - **Battery life:** up to 65 h in GPS (46 mm) / up to 41 h in GPS (42 mm) / up to 24 days normal use (46 mm) / up to 15 days (42 mm) - **Weight:** 52 g (46 mm nylon strap) / 64 g (46 mm silicone) / 45 g (42 mm nylon) / 56 g (42 mm silicone) - **Display:** third generation Always-On MIP touchscreen LCD / 46 mm: 1.3" (33.02 mm) 260 × 260 px / 42 mm: 1.2" (30.48 mm) 240 × 240 px - **Storage space:** 32 GB - **GPS:** All Systems + Dual Frequency (L1 + L5), back navigation, offline maps (free) - **Music:** Storing and playing MP3 via Bluetooth headphones - **Sensors:** HR, SpO₂, HRV, ECG, dual-range barometer, water depth sensor, thermometer, gyroscope, accelerometer, compass - **Water resistance:** 5 ATM - **Materials:** Grade 5 titanium (display bezel), sapphire glass, reinforced polymer (body) - **Straps:** Quick Release, width 24 mm (46 mm) / 22 mm (42 mm) --- ## Display and Design - Third generation Memory-in-Pixel (MIP) display – increased contrast, deeper black color and excellent readability even in direct sunlight - Premium Grade 5 titanium bezel around display and sapphire glass for maximum durability - Display on 24/7 (Always-On function) – even during activity - Robust construction with slightly protruding bezel for display protection from impacts - New third button (Action key) to which you can assign your own function - Reinforced strap attachments to watch body - Steel rotating crown for better control --- ## Sizes and Variants COROS APEX 4 is available in two sizes: **46 mm version:** - Dimensions: 46.2 × 46.2 × 15.5 mm - Display: 1.3" (33.02 mm), 260 × 260 px - Weight: 52 g (nylon) / 64 g (silicone) - Strap width: 24 mm - Battery life: up to 65 h GPS / up to 24 days normal use **42 mm version:** - Dimensions: 42.6 × 42.6 × 15.8 mm - Display: 1.2" (30.48 mm), 240 × 240 px - Weight: 45 g (nylon) / 56 g (silicone) - Strap width: 22 mm - Battery life: up to 41 h GPS / up to 15 days normal use The larger version is suitable for men's wrists with better map and data readability. The smaller version is more discreet, elegant and better complements a more delicate women's wrist. --- ## Performance and Battery Life - Three adjustable GPS modes according to activity needs - High GPS Mode (recommended): balanced compromise suitable for most situations - Endurance GPS Mode: economical mode for maximum battery life during long activities - Max GPS Mode: most accurate mode for maximum recording precision **46 mm battery life:** - Normal use: up to 24 days - High GPS Mode: up to 53 hours - Endurance GPS Mode: up to 65 hours - Max GPS Mode: up to 41 hours **42 mm battery life:** - Normal use: up to 15 days - High GPS Mode: up to 34 hours - Endurance GPS Mode: up to 41 hours - Max GPS Mode: up to 26 hours --- ## Voice Notes (Voice Pins) - Quick note recording during activity using Action button - Automatic assignment of note to exact point on route - Saving and playback of voice notes as part of activity/route - Dual microphone with noise cancellation for quality recording --- ## Audio Features and Speaker - Built-in speaker for audio alerts - Audio Playback – announces current data (distance, pace, heart rate) - Hands-free calls when connected to phone - Using microphone and speaker affects battery life --- ## Navigation and Maps - Built-in offline maps with street names, areas and Points of Interest - Highlighted difference between roads and trails - Saving route points (Pins), route profile and back navigation (Back-to-Start) - Turn-by-Turn navigation with turn alerts - Fast map rendering thanks to powerful processor - Touch control and control via rotating crown - Global Landscape maps and regional Topo maps for free --- ## Training Functions - More than 40 sports modes including climbing and fishing - Ability to create custom activities (Custom Activity) with custom data fields - Performance metrics: VO₂max, Training Load, Base Fitness - Long-term training plans and individual workouts - 7-day training load (rolling 7-day) instead of fixed weekly interval --- ## Health Metrics - Daily tracking of HRV, stress (Daily Stress) and recovery (Wellness Check) - Detailed sleep analysis - ECG and oximeter (SpO₂) for more accurate body recovery measurement - Resting heart rate monitoring --- ## Photos and Videos on Route - Record photos and videos that are automatically assigned to your route by GPS - See exactly where they were captured - Easily plan your next adventures based on saved footage --- ## 3D Virtual Flyover - Experience your adventure again in 3D view - Virtual flyover over the route including saved photos and videos - Display of voice notes in 3D visualization --- ## Experience Sharing - Simply create a link to share your experience - Share photos, statistics and saved points - New sharing options with selection of specific training data - Professional templates for presenting results --- ## Weather - Ability to save up to 5 locations for weather tracking directly on watch - 5-day weather forecast for each saved location - Saving forecast for offline use - Safety alerts and air pressure change warnings --- ## Additional Features - Enhanced Dual-Range Barometer – more accurate measurement of altitude, elevation and depth in water - Powerful chip – up to 30 times faster loading and rendering of maps compared to APEX 2 - SpO₂ sensor for measuring blood oxygen saturation - 32 GB storage space for maps, routes and music - Memory-In-Pixel display – continuously on 24/7, more readable in direct sunlight - COROS targets real needs of athletes, not trends - COROS APEX 4 (46 mm) lasts up to 24 days during normal use – almost a whole month without charging --- ## Connectivity - **Bluetooth + Wi-Fi** for fast data transfer and updates - **COROS app** for iOS and Android - Compatibility with external sensors (heart rate, cadence, power) --- ## Technical Specifications | Parameter | 46 mm | 42 mm | |-----------------------|--------------------------------------------|--------------------------------------------| | Dimensions | 46.2 × 46.2 × 15.5 mm | 42.6 × 42.6 × 15.8 mm | | Weight (nylon) | 52 g | 45 g | | Weight (silicone) | 64 g | 56 g | | Display | 1.3" 260 × 260 px MIP LCD | 1.2" 240 × 240 px MIP LCD | | Battery (normal) | up to 24 days | up to 15 days | | Battery (High GPS) | up to 53 h | up to 34 h | | Battery (Endurance) | up to 65 h | up to 41 h | | Battery (Max GPS) | up to 41 h | up to 26 h | | Strap width | 24 mm | 22 mm | | GPS | All Systems + Dual Frequency (L1 + L5) | All Systems + Dual Frequency (L1 + L5) | | Water resistance | 5 ATM | 5 ATM | | Bezel material | Grade 5 titanium | Grade 5 titanium | | Display glass | Sapphire | Sapphire | | Body material | Reinforced polymer | Reinforced polymer | | Sensors | HR, SpO₂, HRV, ECG, dual-range barometer, depth sensor, thermometer, gyroscope, accelerometer, compass, microphone | | Storage space | 32 GB | 32 GB | | Connectivity | Bluetooth, Wi-Fi | Bluetooth, Wi-Fi | | Operating temperature | –20 °C to +50 °C | –20 °C to +50 °C | | Music | MP3 playback (not streaming) | MP3 playback (not streaming) | | Charging time | less than 2 hours | less than 2 hours | --- ## Satellite Systems - GPS - GLONASS - Galileo - BeiDou - QZSS --- ## Supported Sports Activities - Running (outdoor, indoor, track, trail) - Hiking - Cycling - Swimming (indoor, outdoor) - Triathlon - Gym cardio / GPS cardio - Skiing / Snowboarding / Cross-country skiing - Multisport - Strength training / Workout - Rowing (outdoor, indoor) - Water sports (SUP and others) - Jump rope - Various indoor sports (badminton, basketball, boxing, table tennis, tennis, pilates, yoga) - Climbing (outdoor, alpine, indoor, bouldering) - Fishing (fly fishing, lure fishing, boat, shore, offshore, deep sea, kayak, surf) - Custom Activity – ability to create your own activity with custom name, icon and data fields --- ## Training Metrics - EvoLab physical fitness management system - Running fitness test and FTP test - Training load and recommended training load - Recovery timer - Effort pace - Resting heart rate - Metronome - Heart rate broadcasting - Long-term training plans (hundreds of plans for free) - Individual workouts (planning and execution of one training session) --- ## Daily Life Metrics - Daily Stress – stress load on given day - Wellness Check – recovery level - Message/Call Alert – incoming call and message notifications - Sleep – detailed sleep quality measurement - Alarm, countdown timer, stopwatch - Daily Alerts – notifications about calories, exercise time, storms - Find My Phone / Find My Watch - Always-On Display during activity - Heart Rate Variability (HRV) - Music – MP3 playback to Bluetooth headphones - Safety Alerts - Weather recording --- ## Navigation Features - Navigation on display controlled by touch or rotating crown - Back to Start - Route profile and distance to destination - Wrong turn alert - Saving point on route (Pins and Waypoints) - Offline maps with street names, areas and POI - Turn-by-Turn navigation --- ## Adjustable Menu Languages - English - Simplified and traditional Chinese - German, Spanish, French - Polish, Thai, Japanese - Korean, Portuguese, Italian - Russian, Vietnamese --- **Version generated:** 2025-10-15 16:00 UTC