COROS APEX 4 GPS Outdoor Watch - 46mm - white

The ultimate mountain sports watch for training, competitions and your best times

The APEX 4 is based on years of continuous development and insights from the world's best mountain athletes. It features ultra-precise GPS, a premium rechargeable battery, lag-free maps, microphone and speaker, and advanced training and recovery tools to help you achieve your biggest goals.

Highlights of the COROS APEX 4 outdoor watch

• 65 hours of GPS battery life - enough to see you through even the longest days
• Our most powerful maps with free worldwide maps, street and trail names, turn-by-turn navigation and points of interest (POIs)
• Precise dual-frequency GPS with vertical algorithms, specially developed for alpine areas and steep walls
• 1.3 inch memory-in-pixel touchscreen with high contrast and easy readability in sun, snow or shade
• Titanium frame and sapphire crystal for a lightweight feel and alpine robustness
• Integrated speaker and microphone for pace alarms, voice memos and hands-free calling

Details of the COROS APEX 4 mountain sports watch

• Alpine-proven technology: Lightweight grade 5 titanium, reinforced strap lugs. Touch screen with scratch-resistant sapphire crystal.
• Razor-sharp accuracy - without limits: APEX 4 offers industry-leading precision in GPS, pace, heart rate and altitude measurement - combined with the proven battery life you know from COROS.
• Altitude: Calibrated for rapid weather changes and steep, technical terrain.
  • Barometer with two scales
• GPS: Precision even in dense forests, steep gullies and alpine walls.
• Rechargeable battery: Lasts long enough for 160 km round Mont Blanc or the entire Grand Traverse + Vertical GPS algorithms for challenging terrain (Endurance satellite mode).
• Microphone: Record voice notes - to capture information on the wall or during a long running session. So you'll be perfectly prepared next time.
• Always visible: APEX 4's 3rd generation Always-On MIP display offers richer colors and stays crisp even in bright sun, deep snow or shadows.
• Speaker: Make hands-free calls and listen to activity alerts directly on the watch.
• Ready for long runs: From your first trail run to a 160 km adventure, APEX 4 offers worldwide maps directly on the watch, 3D terrain views, real-time instant pace, route planning and fitness metrics to help you track your training.
• Effort PaceEffort Pace shows you how fast you would run on flat terrain - so you know when to pick up the pace and when to slow down.
• Worldwide maps: Landscape and topo maps with street and route names provide you with the information you need at all times - even without cell phone reception.
• Navigation: Turn-by-turn navigation, street names, POIs and back-to-start ensure that you always know where you are and where you've been. Stay on course by syncing GPX tracks to your watch - and get notifications if you go off course, even in limited visibility.
• Running fitness: Identify your race prediction times and the training zones you need to improve - whether you're preparing for an ultra or your next 5K all-out run.
• Record every climb: Vertical GPS algorithms for climbs and five specialized climbing modes: APEX 4 has everything you need to accurately document every climb - and nothing you don't need.
• Voice notes: Save important notes directly on the go with your voice - so you remember every crux, every movement and every moment.
• Climbing modes: Switch between bouldering, single-pitch, multi-pitch and mountaineering - so you always get the data that's right for your activity.
• Vertical performance at a glance: Track your vertical meters in real time, stay oriented on remote descents with advanced map layers and rely on a display that's always visible - no matter the snow, sun or pace.
• Topo maps: Recognize the mountain terrain immediately with contour lines and detailed views - ideal for ski touring.
• Weather: Real-time weather information supports you on every ascent and descent.
• Precise metrics: Measure ascent altitude, altitude meters and heart rate with reliable accuracy.
• Training status: The training status tells you whether you are building up, maintaining your form or training too much - so you stay in control every season.

• Training load: The training load shows you how intense your running, bike tours, climbing tours and other activities were.

• Base fitness: The base fitness informs you about your long-term aerobic fitness.

• Sleep: Track total sleep time, sleep phases, sleep quality and naps.
• HRV: Check your nightly heart rate variability to see how your body responds to exercise and stress.
• Daily stress: Keep track of your body's stress level with a score from 1-100.
• Recovery timer: The recovery timer shows you when your body is ready for light or intense training and helps you balance rest and exertion.
• Tools for the ascent: Precise data, lightning-fast maps and enormous battery life prepare you optimally for any challenge.
• Sync, connect and control: Easily connect your watch to apps like Strava or Apple Health, stay informed about calls and messages and even control your camera - right from your wrist.

Specifications of the COROS APEX 4 multisport watch

• Dimensions: 46.2 x 46.2 x 13.7 mm
• Weight: 64 g with silicone strap, 51 g with nylon strap
• Display: Sapphire glass, 1.3 inch third-generation memory-in-pixel touchscreen, resolution: 260 x 260
• Frame: Grade 5 titanium alloy
• Cover: Fiber-reinforced polymer
• Quick release wrist-band: 24 mm wide, 140 mm - 215 mm
• Buttons & dials: Digital dial, back button, action button for quick access to maps, voice memos and more
• Connectivity: Bluetooth
• Data synchronization: Wi-Fi / COROS app
• Water resistance: 5 ATM (suitable for activities on the water surface and not for diving)
• Operating temperature: -20°C to 50°C (-4°F to 122°F)
• Storage temperature: -20°C to 60°C (-4°F to 140°F)
• Rechargeable battery:
  • Endurance: 65 hours, All systems (GPS, GLONASS, Galileo, Beidou, QZSS) with offline music playback: 17 hours
  • High: 53 hours, All systems (GPS, GLONASS, Galileo, Beidou, QZSS) with offline music playback: 16 hours
  • Max: 41 hours, All systems (GPS, GLONASS, Galileo, Beidou, QZSS) with offline music playback: 15 hours
  • Daily use & sleep tracking: 24 days
  • Charging time: less than 2 hours
• Internal memory: 32 GB
• Activity memory: 1,200 hours (estimates based on outdoor activities)
• Satellite systems: GPS, GLONASS, Galileo, Beidou, QZSS
• GNSS chipset: All-satellite dual frequency
• Navigation:
  • Map layer: Landscape (with street and trail names) & topographic maps - worldwide downloadable maps
  • Additional functions: Checkpoint, return to start, deviation alert, touchscreen-controlled map control, safety alert
• Sensors: Speaker for hands-free calling or playing activity alerts, dual microphone with noise cancellation for recording voice notes and for voice commands, optical heart rate monitor, barometric altimeter, accelerometer, gyroscope, 3D compass, thermometer, optical pulse oximeter, electrocardiogram sensor
• Training functions:
  • Effort Pace: A personalized metric that represents actual effort while running

  • EvoLab: Recovery, fatigue, training load, race prediction, VO2 max, threshold ranges and other metrics

  • Activity alerts: For cadence, distance, pace, heart rate, power and other metrics
  • Interval training (beginner/advanced)
  • Pre-planned workouts
  • Training plans
  • Running fitness
  • RHF
  • Underwater heart rate
  • Action camera control: supports selected GoPro and Insta360 cameras
  • Virtual Pacer
  • Virtual running
  • Running style test (requires COROS POD/POD 2)
  • Altitude mode: regular evaluation of SpO2 and fitness at high altitudes
  • Touch Scroll: Swipe to scroll through the data pages during training
  • Extender
• Daily functions:
  • Daily stress
  • Wellness check
  • Notifications for calls & messages (even during training)

  • Sleep with REM tracking

  • Alarm clock
  • timer
  • Stopwatch
  • Daily alarms (including calories, training time, storm and other alarms)
  • Updateable firmware (with WLAN and the COROS app)
  • Find my phone
  • Find my watch
  • Backlight in always-on mode
  • HRV
  • Music: Plays offline music when paired with supported Bluetooth headsets
• Compatible apps: Nike Run Club, Komoot, TrainingPeaks, Strava, Relive, adidas Running, Apple Health, Stryd, Final Surge, Runalyze, Running Quotient, Decathlon

Scope of delivery

• COROS APEX 4
• charging cable
• Nylon wristband