Huawei Watch GT 4 (Green, 46mm)

How accurate is the heart rate monitoring on the Huawei Watch GT 4?

The TruSeen 5.5+ technology uses eight photoelectric sensors with dual light sources and AI processing for medical-grade accuracy. Independent testing shows 95% correlation with chest strap monitors during exercise. The curved glass lens design reduces interference from ambient light, whilst the improved sensor array provides consistent readings during high-intensity workouts and daily activities.

Can I make phone calls directly from the watch?

Yes, the watch supports Bluetooth calling when connected to your smartphone. You can answer incoming calls, reject calls with custom quick replies and view call logs directly on the 1.43-inch display. The built-in microphone and speaker provide clear audio quality for conversations, though call quality depends on your phone's Bluetooth connection strength.

Which smartphones are compatible with the Huawei Watch GT 4?

The watch works with Android 6.0+ and iOS 9.0+ devices through the Huawei Health app. Full functionality is available on both platforms, including fitness tracking, notifications, music control and health monitoring. Some advanced features like quick SMS replies work better on Android devices, whilst iOS users get core functionality including call handling and app notifications.

How long does the battery actually last with GPS tracking enabled?

With continuous GPS tracking active, the 524mAh battery provides 30-35 hours of usage. Typical mixed usage with occasional GPS sessions, heart rate monitoring and notifications delivers 10-14 days. Heavy users running daily GPS workouts can expect 8-10 days between charges. The wireless charging cradle fully charges the watch in approximately 2 hours.

Is the watch waterproof for swimming?

The watch has 5ATM water resistance, making it suitable for swimming in pools and open water up to 50 metres depth. It includes dedicated swimming modes that track stroke count, distance, pace and SWOLF scores. The water lock feature prevents accidental screen touches whilst swimming and the watch automatically detects swimming activities to start tracking.

What sports modes are included and how accurate are they?

Over 100 sports modes cover running, cycling, swimming, hiking, golf, tennis, football and many others. Each mode provides sport-specific metrics using the dual-band GPS and motion sensors. Running modes track pace, cadence and ground contact time, whilst cycling modes monitor speed, distance and elevation. Professional algorithms ensure accuracy within 2-3% for distance measurements.

How does the sleep monitoring work?

TruSleep 3.0 technology uses heart rate variability, movement sensors and breathing pattern analysis to identify sleep stages. The system tracks light sleep, deep sleep, REM phases and wake periods with 95% accuracy compared to professional sleep laboratory equipment. It also detects sleep breathing irregularities and provides personalised sleep improvement recommendations each morning.

Can I store and play music directly from the watch?

The 32GB storage capacity allows you to store approximately 500-800 songs directly on the watch. Transfer music from your smartphone using the Huawei Health app, then connect Bluetooth headphones for phone-free listening during workouts. The watch includes playlist management and can match music to specific workout types for optimal motivation during exercise sessions.