Built for the long way round.
Apple Watch Ultra 4 is Apple's most rugged watch: a 49mm Grade 5 titanium case, a flat sapphire crystal display and the new S11 chip, made for runners, hikers and divers who ask more of their gear. The titanium is 100 percent recycled, and it comes in Natural or Black.
- Up to 50 hrsNormal use, and up to 84 hours in Low Power Mode
- 3000 nitsAlways-On Retina display with wide-angle OLEDs
- 40mRecreational scuba diving, with 100m water resistance
- Every 5 secAll-day heart rate readings from the new Health Sensing System
Two days on one charge.
Apple rates Ultra 4 for up to 50 hours of normal use and up to 84 hours in Low Power Mode, so a weekend climb on Mount Kenya or a long trip upcountry does not need a charger. Extended Workout tracking now lasts up to 25 hours, and Max Extended Workout up to 45 hours. In a hurry? Just 15 minutes of charging adds up to 18 hours of battery life.
Know when to go. And when to rest.
The new Health Sensing System measures heart rate every five seconds, all day long, and takes HRV readings up to 24 times more often. A new Readiness Score gives you a single number from 0 to 10 each morning with a clear recommendation: Recover, Pace Yourself, Ready or Go For It. It is the coach you want in the weeks before the Nairobi City Marathon.
Sensors for every reading
A second-generation electrical heart sensor, an always-on optical heart sensor, a blood oxygen sensor and a temperature sensor sit alongside a compass, altimeter, accelerometer and gyroscope.
Made for the trail, the track and the reef.
Precision dual-frequency GPS gives Ultra 4 what Apple calls the most accurate on-device GPS in a sports watch, so your Karura Forest loops and Ngong Hills ridge runs map cleanly. Rated 100m water resistant and IP6X dust resistant, it is certified for recreational scuba diving to 40 metres, ready for a dive at Watamu or Diani. The customisable Action button starts a workout or a dive in one press, and the built-in siren can help people find you if you need it.
Bright when the sun is high.
The Always-On Retina display reaches up to 3000 nits, easy to read at noon on the equator, and dims to just 1 nit at night. Under it, the S11 chip runs watchOS 27 with Siri AI, and 5G cellular is built in so you can head out without your phone.
Natural or Black titanium.
Both finishes are on our shelves at Queensway House, Kaunda Street. Come and try them on, or WhatsApp us on 0722 700018. Every Apple Watch at TreWrld is genuine, brand new and warranty backed. Pay with M-Pesa, Visa or Mastercard, get same-day delivery in Nairobi and 1 to 4 days across Kenya, and trade in your current watch to bring the cost down. We pair it with your iPhone before you leave.
Apple Watch Ultra 4 or Apple Watch Series 12?
| Ultra 4 | Series 12 | |
| Case | 49mm titanium | 42mm or 46mm, aluminium, titanium or ceramic |
| Display brightness | Up to 3000 nits | Up to 2000 nits |
| Battery | Up to 50 hours, 84 hours in Low Power Mode | Up to 24 hours, 38 hours in Low Power Mode |
| Water | 100m, recreational scuba to 40 metres | WR 50M |
| Best for | Endurance sport, diving and multi-day adventures | Everyday health, fitness and style |
Want a lighter everyday watch? See Apple Watch Series 12. Still deciding? Compare all Apple Watch models.