Apple Watch Ultra 4 is available at Mascom International for KSh 121,000, brand new and sealed, with a 49mm grade 5 titanium case, GPS plus cellular, the S11 chip and up to 50 hours of battery life. Newly launched by Apple in September 2026, the Apple Watch Ultra 4 keeps the flat sapphire front, 3,000-nit Always-On display and 100-metre water rating of the Ultra line, then adds a newer chip and eight more hours per charge. You can try the Apple Watch Ultra 4 on at our store in the Old Mutual Building on Kimathi Street, Nairobi CBD, before you pay.
Built for field engineers, NGO field staff, executives, runners and divers across Kenya, the Apple Watch Ultra 4 fixes a common problem: a watch that goes flat halfway through a long day. A consultant who leaves home in Kilimani at 6:00 AM and finishes a client dinner in Westlands still has charge the next evening. Hikers on Mount Kenya get dual-frequency GPS that holds its track under tree cover. Divers at Watamu get a depth gauge and water temperature readings. Heart, sleep and blood pressure alerts run quietly in the background all week.
Where most Nairobi electronics shops sell watches with no local backing, Mascom International sells the Apple Watch Ultra 4 sealed, with a 12-month warranty handled at our own CBD service desk. At Mascom International, we're seeing buyers move up from Series watches mainly for the longer battery and the tougher titanium build. Customers across Nairobi tell us the brighter outdoor screen and the Action button changed how they train. Visit us Monday through Saturday, 9:00 AM to 7:00 PM, or order on WhatsApp and pay on arrival anywhere in the country.
Common Questions About the Apple Watch Ultra 4
How much is the Apple Watch Ultra 4 49mm in Kenya?
The Apple Watch Ultra 4 49mm costs KSh 121,000 brand new and sealed at Mascom International in Nairobi CBD. That price covers the GPS plus cellular titanium model, one band, the magnetic fast charging cable and a 12-month warranty. A power adapter is not included. Delivery is pay-on-arrival to all 47 counties, so you check the sealed box before you hand over money. The Apple Watch Series 12 46mm sells for KSh 70,000 in our store, which is KSh 51,000 less, if you do not need dive tools or the longer battery.
What does the Apple Watch Ultra 4 add over the Apple Watch Ultra 3?
The Apple Watch Ultra 4 adds the S11 chip and up to 50 hours of normal use, against 42 hours on the Apple Watch Ultra 3. Low Power Mode rises from 72 to 84 hours, and a 15-minute charge gives 18 hours instead of 12. Both cost KSh 121,000 at Mascom International. Pick the older watch only if your iPhone must stay on iOS 26, since the Apple Watch Ultra 4 needs iOS 27.
Does the Apple Watch Ultra 4 cellular work with Safaricom or Airtel Kenya?
The Apple Watch Ultra 4 needs a carrier that offers Apple Watch plans before its own cellular link works away from your iPhone. Ask Safaricom or Airtel Kenya whether your line supports a paired watch plan. Without one, the Apple Watch Ultra 4 still gets calls, messages and M-Pesa SMS alerts through your iPhone over Bluetooth or Wi-Fi. The 5G RedCap and LTE hardware is in every unit, so the watch is ready if a Kenyan carrier adds support or you roam abroad on a supported network.
How long does the Apple Watch Ultra 4 battery last on one charge?
Apple rates the Apple Watch Ultra 4 at up to 50 hours of normal use and 84 hours in Low Power Mode. In practice that means two full working days with sleep tracking in between for most wearers. A standard workout runs up to 18 hours, and the Extended setting stretches to 25 hours. For a multi-day trek, the deepest saving setting reaches 45 hours of tracked activity. Charging from empty to 80 percent takes about 45 minutes with a 20W or higher USB-C adapter.
Which health features does the Apple Watch Ultra 4 have?
The Apple Watch Ultra 4 carries an ECG app, blood oxygen readings, wrist temperature sensing, sleep scores and sleep apnoea notifications. It also sends hypertension notifications when your readings over time show signs of high blood pressure, where Apple has approved the feature. The ECG app is for users 22 and older. Blood oxygen and temperature are wellness tools, not medical tests, so use them to start a conversation with your doctor rather than replace one. Cycle tracking now includes perimenopause support.
Is the Apple Watch Ultra 4 good for diving and swimming at the Kenyan coast?
The Apple Watch Ultra 4 is rated for recreational scuba diving to 40 metres and water resistance to 100 metres. Its depth gauge and water temperature sensor log each dive at Watamu, Diani or Kisite without a separate dive computer. Salt water and coastal humidity are fine for the titanium case, but rinse it with fresh water after the sea. Swimmers get lap and stroke tracking in pools, and the Action button starts a dive or swim session with one press.
Which iPhone do I need to use the Apple Watch Ultra 4?
The Apple Watch Ultra 4 needs an iPhone 11 or later running iOS 27 or later. Setup, app installs and most notifications pass through the paired iPhone, so an Android phone will not work with it. Check your iPhone's software version under Settings before you order. If your iPhone cannot update to iOS 27, our team at Mascom International can confirm which watches in stock will pair with it before you pay.
Who should buy the Apple Watch Ultra 4, and who should skip it?
The Apple Watch Ultra 4 suits divers, trail runners, cyclists, field engineers and frequent travellers who want long battery life and a tough case. Skip it if you mainly want notifications and step counts on a slimmer wrist. The Apple Watch Series 12 at KSh 62,000 or KSh 70,000, or the Apple Watch SE 3 from KSh 34,500, both in stock at Mascom International, cover daily fitness for far less. Android users should skip every Apple Watch and choose a watch built for Android instead.
Technical Specifications
Display
- Always-On Retina wide-angle OLED with LTPO3 — the screen stays readable with your wrist down without draining the battery quickly.
- 3,000 nits peak brightness — the face stays clear in direct midday sun during runs, site visits and outdoor meetings.
- 1 nit minimum brightness — dims low enough to check the time in a dark bedroom or cinema without glare.
- 422 x 514 pixels at 326 ppi — ppi means pixels per inch; higher figures give sharper text, maps and workout numbers.
- Flat sapphire crystal front — sapphire is a hard crystal that resists scratches from keys, sand and rough rock.
- 1Hz refresh rate in always-on mode — the screen updates once per second while idle, which saves a large share of power.
Health Sensors
- Always-on optical heart sensor — tracks heart rate and heart rate variability, and alerts you to unusually high or low readings.
- Second-generation electrical heart sensor with ECG app — records your heart rhythm from the wrist for users aged 22 and older.
- Blood oxygen sensor and app — shows the oxygen level in your blood for wellness tracking, not for medical diagnosis.
- Temperature sensor — follows overnight wrist temperature shifts, which feed cycle tracking and help you notice when something is off.
- Hypertension notifications — flags patterns linked to high blood pressure over weeks; not for pregnant people or anyone already diagnosed.
- Sleep app with sleep stages, sleep score and sleep apnoea notifications — shows how well you rested and warns of breathing disruptions.
Battery
- Up to 50 hours of normal use — roughly two full days between charges, including a night of sleep tracking.
- Up to 84 hours in Low Power Mode — three and a half days for a long trek or trip away from sockets.
- Workout battery of up to 18 hours standard and 25 hours Extended — enough for a full marathon or long-distance ride.
- Up to 45 hours in the deepest workout saving setting — tracks multi-day hikes and ultramarathon events on a single charge.
- Fast charging to 80 percent in about 45 minutes — a top-up during breakfast covers most of the day ahead.
- 15 minutes of charging gives up to 18 hours of use; 5 minutes gives up to 10 hours of sleep tracking.
Connectivity
- 5G RedCap and LTE cellular with international roaming (model A3579) — RedCap is a low-power form of 5G made for wearables.
- Satellite communications for Emergency SOS, Messages and Find My — free for two years from activation, in countries Apple supports.
- Dual-frequency GPS with GPS, Galileo, QZSS and BeiDou — two signal bands give truer tracks near tall buildings and thick trees.
- Wi-Fi 4 on 2.4GHz and 5GHz plus Bluetooth 5.3 — links to your iPhone, earbuds and home or office networks reliably.
- Second-generation Ultra Wideband chip — supports precise location features with nearby Apple devices, where regional rules allow it.
- 64GB of storage — holds offline playlists, podcasts and downloaded maps, so you can leave the phone at home.
Build
- Grade 5 titanium case measuring 49 x 44 x 12mm — a strong, light metal; the bands fit wrists from 130 to 210mm.
- Weight of 63.0g in Natural and 63.1g in Black — light enough to wear comfortably through a full night of sleep tracking.
- Water resistance to 100 metres and recreational scuba to 40 metres — rated for swimming, snorkelling and scuba with a built-in depth gauge.
- IP6X dust resistance — the top level on the IP dust scale, so fine sand and dust cannot get inside.
- MIL-STD-810H tested — a US military test standard covering shock, vibration, altitude, temperature extremes and immersion in water.
- Customisable Action button, haptic Digital Crown and built-in siren — one press starts a workout or dive; the siren helps rescuers find you.
Package Contents
The sealed Apple Watch Ultra 4 box holds the watch, one band and the Apple Watch Magnetic Fast Charger to USB-C Cable, 1 metre long. There is no power adapter in the box, so you need a USB-C wall charger; a 20W or higher adapter gives the fastest refill. Compatible chargers are sold separately at Mascom International. Ask us on WhatsApp which band style and size is in your box before you order.
Warranty
The Apple Watch Ultra 4 ships with a 12-month warranty through Mascom International, covering manufacturing defects under normal use. That includes faults in the display, sensors, buttons or battery that come from how the watch was made. Claims are handled in person at our service desk in Nairobi CBD.
Where to Buy the Apple Watch Ultra 4 in Kenya
The Apple Watch Ultra 4 is on display at Mascom International, Old Mutual Building, First Floor Room 4, Kimathi Street, Nairobi CBD. We open Monday through Saturday, 9:00 AM to 7:00 PM. Come in, strap it on and test the Action button, the siren and the screen in daylight before you decide. Apple offers it in Natural and Black titanium, so confirm the colour in stock with us on WhatsApp.
Reach our sales team directly:
- Phone/WhatsApp: +254 708 852 521
- Email: info@mascomintl.com
- Website: www.mascomintl.com
We deliver pay-on-arrival to all 47 counties. Orders in Nairobi and its environs arrive the same day, while Nakuru, Nanyuki, Eldoret, Kisumu and Mombasa get delivery the next business day. Mandera, Wajir, Marsabit, Lamu, Tana River, and Turkana receive delivery within 2-3 business days. Every unit is backed by the 12-month warranty above.
You get honest specifications, accurate pricing and a real team behind the counter when you need after-sales help.
