Apple Watch Ultra 3 (GPS+Cellular) 49mm Titanium Case with Titanium Milanese Loop - Large - Black (AT&T) - (2025)
Model: MF1T4LW/A
SKU: 6573107
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Specifications
- Screen Size49 millimetersOperating System CompatibilityApple iOSOperating SystemwatchOSCarrierAT&TBuilt-in Storage64 gigabytesGlobal PositioningGPS, Galileo, QZSS, GLONASS
- Key Specs
- Screen Size: 49 millimeters (Size of the screen, measured diagonally from corner to corner.)
- Operating System Compatibility: Apple iOS
- Operating System: watchOS (The operating system manages all software and hardware, including files, memory and connected devices. Most importantly, it lets you interact with your device and your programs in a visual way; otherwise, you'd be typing computer code to get anything done.)
- Carrier: AT&T
- Built-in Storage: 64 gigabytes
- Global Positioning: GPS, Galileo, QZSS, GLONASS (A system of satellites which enables a mobile receiver to determine its precise location based on signals received from satellites such as the US Global Positioning System (GPS), the Russian Global Navigation Satellite System (GLONASS), the European Global Navigation Satellite System (Galileo), or the Japanese Quasi-Zenith Satellite System (QZSS).)
- Metrics Measured: Resting heart rate, Skin temperature, Altitude changes, Blood oxygen, Water temperature, Electrocardiography (ECG)
- Protective Qualities: Water resistant, Dust resistant
- Maximum Depth of Water Resistance: 328 feet (Measurement of the maximum depth of water in which the product is able to resist some degree of water penetration.)
- Series: Ultra (Part of a group of the same product type with similar features.)
- General
- Brand: Apple
- Model Number: MF1T4LW/A
- Product Name: Apple Watch Ultra 3 (GPS+Cellular) 49mm Titanium Case with Titanium Milanese Loop - Large
- Color: Black
- Product Type: Smartwatch
- Form Factor: Wristwatch (The size, arrangement, and physical configuration of the product.)
- Model Family: Apple Watch Ultra 3
- Series: Ultra (Part of a group of the same product type with similar features.)
- Year of Release: 2025
- Design
- Band Type: Milanese Loop
- Band Color: Black Titanium
- Display
- Display Screen: true
- Screen Size: 49 millimeters (Size of the screen, measured diagonally from corner to corner.)
- Screen Resolution: 422 x 514 (Screens come in a range of resolutions (measured in pixels, horizontal x vertical). The higher the resolution, the greater the picture quality.)
- Display Type: OLED
- Color Display: true
- Backlit Display: true (Integrated lights allow for visibility of the display in low-light conditions.)
- Compatibility
- Operating System Compatibility: Apple iOS
- Operating System: watchOS (The operating system manages all software and hardware, including files, memory and connected devices. Most importantly, it lets you interact with your device and your programs in a visual way; otherwise, you'd be typing computer code to get anything done.)
- Connectivity
- Carrier: AT&T
- Network Connectivity: 4G LTE, 5G (The manner in which a device sends data to another device over a long distance using a cellular network.)
- Wireless Connectivity: Wi-Fi, Bluetooth (The manner in which a device sends data to another device over a short distance without the use of wires or cables.)
- Wireless Standard: N (The wireless networking protocol used by the device. Each iteration of the protocol is based on the 802.11 standard developed by the Institute of Electrical and Electronics Engineers (IEEE) Standards Association. Denoted by letters following 802.11 (802.11a, 802.11ac, etc.), each version, published in alphabetical order, encompasses all previous versions.)
- Features
- Built-in Storage: 64 gigabytes
- GPS Enabled: true
- Global Positioning: GPS, Galileo, QZSS, GLONASS (A system of satellites which enables a mobile receiver to determine its precise location based on signals received from satellites such as the US Global Positioning System (GPS), the Russian Global Navigation Satellite System (GLONASS), the European Global Navigation Satellite System (Galileo), or the Japanese Quasi-Zenith Satellite System (QZSS).)
- Activity
- Metrics Measured: Resting heart rate, Skin temperature, Altitude changes, Blood oxygen, Water temperature, Electrocardiography (ECG)
- Performance
- Protective Qualities: Water resistant, Dust resistant
- Maximum Depth of Water Resistance: 328 feet (Measurement of the maximum depth of water in which the product is able to resist some degree of water penetration.)
- Dimensions
- Product Height: 1.93 inches (The out of box height of the item. Height is measured as the vertical distance from the bottom of the item to the top as it would be primarily used or placed.)
- Product Width: 1.73 inches (The out of box width of the item. Width is measured as the horizontal distance from one side of the item to the other as it would be primarily used or placed.)
- Product Weight: 2.18 ounces (The out of box weight of the item.)
- Product Length: 0.47 inches (The out of box length of the item. Length is measured as the longest dimension of the item.)
- Band Size: Large
- Power
- Rechargeable: true
- Charging Interface(s): USB-C (The connection for transmitting power to charge the device.)
- Battery Chemistry: Lithium-ion
- Material
- Case Material: Titanium
- Warranty
- Warranty - Parts: Apple One (1) Year Limited Warranty
- Warranty - Labor: Apple One (1) Year Limited Warranty
- Other
- UPC: 400065731077
Apple Watch Ultra 3 now features built-in satellite communications, multiday battery life, and the largest, brightest display in an Apple Watch. It also delivers advanced metrics, Custom Workouts, dual-frequency GPS, and invaluable health insights like hypertension notifications and sleep score. It’s not called Ultra for nothing.
Whats Included
- Case
- Band
- 1m Magnetic Charging Cable
- Case
- Band
- 1m Magnetic Charging Cable
Disclaimers
- ¹Apple Watch Ultra 3 requires iPhone 11 or later with iOS 26 or later.
- ²Emergency SOS, Find My, and Messages via satellite are included for free for two years with the activation of Apple Watch Ultra 3. Connection and response times vary based on location, site conditions, and other factors. Find My and Messages via satellite require a carrier plan.
- To send and receive SMS/MMS from cellular models of Apple Watch over satellite, your paired iPhone must be powered on and connected to Wi-Fi or an active cellular network, but your iPhone doesn’t need to be nearby. SMS message rates may apply. Satellite connectivity provided by Globalstar and its affiliates. See support.apple.com/123924 for more information.
- ³Battery life varies by use and configuration. See apple.com/watch/battery for more information.
- ⁴When angled away from the user as compared with Apple Watch Ultra or Ultra 2.
- ⁵Hypertension notifications are not intended for use by people under 22 years old, those who have been previously diagnosed with hypertension, or pregnant persons.
- ⁶Apple Watch Ultra 3 has a water resistance rating of 100 meters under ISO standard 22810:2010. It may be used for recreational scuba diving (with compatible third-party app from the App Store) to 40 meters and high-speed water sports. Apple Watch Ultra 3 should not be used for diving below 40 meters. Water resistance is not a permanent condition and can diminish over time. For additional information, see support.apple.com/en-us/109522.
- ⁷Requires an Apple Intelligence–enabled iPhone nearby and Bluetooth headphones with device and Siri language set to English. Apple Intelligence is available in beta. Some features may not be available in all regions or languages. For feature and language availability and system requirements, see support.apple.com/en-us/121115.
- ⁸Emergency SOS requires a cellular connection or Wi-Fi calling with an internet connection from your Apple Watch or nearby iPhone. You can use cellular models of Apple Watch to make an emergency call in many locations, provided that cellular service is available.
- Some cellular networks may not accept an emergency call from your Apple Watch if your Apple Watch isn’t activated, if it isn’t compatible with or configured to operate on a particular cellular network, if isn’t set up for cellular service, or if the cellular network does not support emergency calling over IMS. See support.apple.com/108374 and apple.com/watch/cellular for more information.
- ⁹Irregular rhythm notification requires the latest versions of watchOS and iOS. It is not intended for use by people under 22 years old or those who have been previously diagnosed with atrial fibrillation (AFib).
- ¹⁰Sleep apnea notifications are available on Apple Watch Series 9 and later, Ultra 2 and later, and SE 3. The feature is intended to detect signs of moderate to severe sleep apnea for people 18 years old or older without a diagnosis of sleep apnea.
- ¹¹The Vitals app is for wellness purposes only and not for medical use.
- ¹²The Blood Oxygen app is for wellness purposes only and not for medical use. Measurements are calculated and viewed on iPhone in the Health app.
- ¹³Wireless service plan required for cellular service. Contact your service provider for more details. Connection may vary based on network availability. Check apple.com/watch/cellular for participating wireless carriers and eligibility. See support.apple.com/HT207578 for additional setup instructions.
- ¹⁴Data plan required. 5G is available in select markets and through select carriers. Speeds vary based on site conditions and carrier. For details on 5G support, contact your carrier and see apple.com/watch/cellular.
- ¹Apple Watch Ultra 3 requires iPhone 11 or later with iOS 26 or later.
- ²Emergency SOS, Find My, and Messages via satellite are included for free for two years with the activation of Apple Watch Ultra 3. Connection and response times vary based on location, site conditions, and other factors. Find My and Messages via satellite require a carrier plan.
- To send and receive SMS/MMS from cellular models of Apple Watch over satellite, your paired iPhone must be powered on and connected to Wi-Fi or an active cellular network, but your iPhone doesn’t need to be nearby. SMS message rates may apply. Satellite connectivity provided by Globalstar and its affiliates. See support.apple.com/123924 for more information.
- ³Battery life varies by use and configuration. See apple.com/watch/battery for more information.
- ⁴When angled away from the user as compared with Apple Watch Ultra or Ultra 2.
- ⁵Hypertension notifications are not intended for use by people under 22 years old, those who have been previously diagnosed with hypertension, or pregnant persons.
- ⁶Apple Watch Ultra 3 has a water resistance rating of 100 meters under ISO standard 22810:2010. It may be used for recreational scuba diving (with compatible third-party app from the App Store) to 40 meters and high-speed water sports. Apple Watch Ultra 3 should not be used for diving below 40 meters. Water resistance is not a permanent condition and can diminish over time. For additional information, see support.apple.com/en-us/109522.
- ⁷Requires an Apple Intelligence–enabled iPhone nearby and Bluetooth headphones with device and Siri language set to English. Apple Intelligence is available in beta. Some features may not be available in all regions or languages. For feature and language availability and system requirements, see support.apple.com/en-us/121115.
- ⁸Emergency SOS requires a cellular connection or Wi-Fi calling with an internet connection from your Apple Watch or nearby iPhone. You can use cellular models of Apple Watch to make an emergency call in many locations, provided that cellular service is available.
- Some cellular networks may not accept an emergency call from your Apple Watch if your Apple Watch isn’t activated, if it isn’t compatible with or configured to operate on a particular cellular network, if isn’t set up for cellular service, or if the cellular network does not support emergency calling over IMS. See support.apple.com/108374 and apple.com/watch/cellular for more information.
- ⁹Irregular rhythm notification requires the latest versions of watchOS and iOS. It is not intended for use by people under 22 years old or those who have been previously diagnosed with atrial fibrillation (AFib).
- ¹⁰Sleep apnea notifications are available on Apple Watch Series 9 and later, Ultra 2 and later, and SE 3. The feature is intended to detect signs of moderate to severe sleep apnea for people 18 years old or older without a diagnosis of sleep apnea.
- ¹¹The Vitals app is for wellness purposes only and not for medical use.
- ¹²The Blood Oxygen app is for wellness purposes only and not for medical use. Measurements are calculated and viewed on iPhone in the Health app.
- ¹³Wireless service plan required for cellular service. Contact your service provider for more details. Connection may vary based on network availability. Check apple.com/watch/cellular for participating wireless carriers and eligibility. See support.apple.com/HT207578 for additional setup instructions.
- ¹⁴Data plan required. 5G is available in select markets and through select carriers. Speeds vary based on site conditions and carrier. For details on 5G support, contact your carrier and see apple.com/watch/cellular.
Q: What are the fitting measurements for each band size?
A: undefined
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Reviews
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The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.
- Rated 5 out of 5 stars
Worth Every Penny
I’ve been using the Apple Watch Ultra 3 for a few weeks now, and it’s easily the most complete smartwatch I’ve owned. The titanium build feels premium yet lightweight, and the new Milanese Loop adds a sleek, professional look. Battery life comfortably lasts two full days with GPS and notifications active. I use it daily for workouts, hydration reminders, and to stay on top of my schedule — it’s become essential. If you’re on the fence about upgrading from a Series 8 or Ultra 2, this is the one that finally feels “complete.” Totally worth it.
This review is from Apple Watch Ultra 3 (GPS+Cellular) 49mm Titanium Case with Titanium Milanese Loop - Large - Black - (2025)
Posted by 2longdidntwatch
- Rated 5 out of 5 stars
Apple Watch Ultra 3 - Amazing
This watch offers so much. I've only had the watch for a couple of weeks and discover more everyday. I love it so far and would recommend it to anyone looking for a great look and functional watch
This review is from Apple Watch Ultra 3 (GPS+Cellular) 49mm Titanium Case with Titanium Milanese Loop - Large - Black - (2025)
Posted by CoolSavings
- Rated 5 out of 5 stars
Super good watch
This watch is amazing. It has excellent battery life. Can go several days without recharging it. Plus the band is amazing. Makes it look classy. Its easy to put on and off once you get use to it. Got one for my wife she loves it. It seems faster than previous models. Havent seen any scratches.
This review is from Apple Watch Ultra 3 (GPS+Cellular) 49mm Titanium Case with Titanium Milanese Loop - Large - Black - (2025)
Posted by Techguy
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