- All new health sensing system works with S11 chip
- Most accurate heart rate sensing – 60x more frequent background heart rate reading
- Readiness and vitals with improved HRV
- All-new Siri AI and Audio intelligence
- Up to 14 more hours for up to 50 hours of total battery life
Buy Apple Watch Ultra 4 GPS + Cellular 49mm with Ocean Band in Singapore
Buy Apple Watch Ultra 4 GPS + Cellular 49mm with Ocean Band in Singapore. Designed for swimming, diving and water sports, this model combines a secure water-ready band with a rugged titanium case, precision GPS, advanced health tracking and up to 50 hours of normal battery life.
Why Choose Apple Watch Ultra 4 with Ocean Band?
The Ocean Band is the most suitable Apple Watch Ultra 4 option for swimmers, divers and water-sports enthusiasts. Its flexible construction, adjustable loop and corrosion-resistant titanium buckle help provide a secure fit during active use in and around water.
It is also a practical choice for workouts, outdoor adventures and everyday wear in Singapore's humid climate.
Made for Swimming Diving and Water Sports
Apple Watch Ultra 4 has a WR100 water-resistance rating and supports recreational scuba diving down to 40 metres and high-speed water sports. Its Depth app, depth gauge and water-temperature sensor provide useful information during supported underwater activities.
The watch is also IP6X dust resistant and tested to MIL-STD-810H standards, helping it withstand demanding outdoor environments.
Bright 49mm Display and Rugged Titanium Case
The wide-angle Always-On Retina display reaches up to 3,000 nits of brightness, making workout data, navigation and notifications easier to view under bright sunlight.
A Grade 5 titanium case and sapphire crystal display provide a durable combination for water activities, outdoor training and daily use.
Precision GPS for Outdoor Training
Precision dual-frequency GPS tracks distance, pace and routes during running, cycling, hiking and multisport workouts. Training features include Pacer, Race Route, Automatic Track Detection, Custom Workouts and personalised Heart Rate Zones.
The customisable Action button provides quick access to functions such as starting a workout, marking a segment or turning on the torch.
Advanced Health and Recovery Insights
The Health Sensing System works with the S11 chip to provide frequent heart rate and heart rate variability measurements. A readiness score analyses your recent activity, vitals and sleep to indicate whether you may be ready to train or should prioritise recovery.
Other supported features include ECG, Blood Oxygen, sleep tracking, sleep score and high, low or irregular heart rhythm notifications. Feature availability may vary by country, software version and regulatory approval.
Battery Life for Longer Adventures
Apple Watch Ultra 4 delivers up to 50 hours of battery life during normal use and up to 84 hours in Low Power Mode. It also provides up to 18 hours of standard workout tracking or up to 45 hours with Max Extended Workout tracking.
A 15-minute fast charge can provide up to 18 hours of normal use, helping you spend less time charging between activities.
Stay Connected with GPS and Cellular
With a compatible mobile service and supported iPhone, you can make calls, receive messages and access supported services without keeping your iPhone nearby. Browse the latest Singtel iPhone offers and confirm compatibility before completing your purchase.
Related Products
Explore Apple Watch Ultra 4 from Singtel
Apple Watch Ultra 4 with Alpine Loop | Apple Watch Ultra 4 with Titanium Milanese Loop | Apple Watch Ultra 4 with Trail Loop
Explore More Apple Watch Models
Compare Apple Watch Series 12, Apple Watch SE 3 and other smartwatches and wearables from Singtel.