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Apple Watch Series 4 (Cellular, US/CA, 44 mm) Specs

Identifiers: Watch Series 4 44 mm - MTUU2LL/A** - Watch4,4 - A1976* - 3228*

All Apple Watch Models


Apple Watch Series 4, GPS+Cellular, 44 mmPlease note that this A1976 Apple Watch Series 4 (GPS+Cellular, United States/Canada, 44 mm) model is compatible with LTE bands 2 (1900 MHz), 4 (AWS), 5 (850 MHz), 12 (700 MHz), 13 (700c MHz), 17 (700b MHz), 18 (800 MHz), 19 (800 MHz), 25 (1900 MHz), 26 (800 MHz), and 41 (TD 2500) as well as UMTS 800 MHz, 1700 MHz, and 1900 MHz in the United States, Canada, and Puerto Rico (which last time we checked was part of the US). It is not intended to work in other countries.

The Apple Watch Series 4 models look similar to earlier models, but have larger displays, more advanced input capabilities, more powerful internals, and more advanced sensors (most notably a new accelerometer and gyroscope that can detect falls and an electrical heart sensor).

All cellular-capable Apple Watch Series 4 models, like this one, are capable of being connected to the Internet without a "tethered" iPhone, but it still requires an iPhone 6 or newer running iOS 12 or later for most functionality.

All Apple Watch Series 4 devices are controlled with a Digital Crown with haptic feedback and a Force Touch capable display. This particular Apple Watch Series 4, a cellular-capable model in the 44 mm size, features a 368x448 LTPO OLED screen. Configurations with aluminum cases use "strengthened, lightweight Ion-X glass" and those with stainless steel cases use a "Sapphire crystal" covering over the display. All models use an "all ceramic and sapphire crystal back" that connects to the charger.

Battery life is an Apple estimated "up to 18 hours" overall, but more precisely, "up to 2 hours" of talk time connected to an iPhone, "over 1 hour" connected to LTE, "up to 10 hours" of audio playback from Apple Watch storage, "up to 7 hours" of streaming from a music playlist with LTE, "up to 5 hours" streaming live radio with LTE, "up to 10 hours" of working out indoors, "up to 6 hours" of working out outdoors with GPS, "up to 5 hours" of working out outdoors with GPS and LTE, and "up to 4 hours" of working out outdoors with streaming audio, GPS, and LTE.

There are 12 different options for this particular Apple Watch Series 4 model, six with aluminum cases and six with stainless steel. Options include a silver colored aluminum case with a white fluoroelastomer rubber "Sport Band" or "Seashell" gray fabric "Sport Loop;" a gold colored aluminum case with a "Pink Sand" fluoroelastomer rubber "Sport Band" or "Pink Sand" fabric "Sport Loop"; or a dark "Space Gray" colored aluminum case and a black fluoroelastomer rubber "Sport Band" (pictured, left) or black fabric "Sport Loop." Stainless steel cases are offered in nearly the same colors as the aluminum options (the "Space Gray" option is replaced by a darker "Space Black") and nearly the same fluoroelastomer rubber "Sport Band" options (the gold colored stainless steel case is paired with a slightly more subdued beige "Stone" colored fluoroelastomer rubber "Sport Band"). Stainless steel cases are not offered with the fabric "Sport Loop," but instead are upgraded to the classy metal "Milanese" loop in matching silver colored metal (pictured, right), gold colored metal, or black metal.

Also see:

  • What are all the differences between the Apple Watch Series 4 models?
  • What are the differences between the Apple Watch Series 4 and earlier models?

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  • Tech Specs
  • Global Original Prices
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Click on a category for related details. The most commonly needed info is "open" by default, but all info is important.


September 12, 2018* September 10, 2019
Details: The "Introduction Date" refers to the date a model was introduced via press release. The "Discontinued Date" refers to the date a model either was replaced by a subsequent system or production otherwise ended.

*This model was introduced on September 12, 2018, was available for pre-order on September 14, 2018, and first was available in stores on September 21, 2018.
N/A Apple S4*
Details: *Apple reports that the processor in the Apple Watch Series 4 models is a 64-bit dual core Apple "S4" processor. The clockspeed is unspecified.
1 GB* 16 GB
Details: All Apple Watch Series 4 models have 16 GB of internal flash storage regardless of wireless capability.
N/A N/A
Details: *Apple does not provide an estimate of song and photo capacity instead opting just for GB.
Watch Apple Watch Series 4 (44 mm)
Details: This Apple Watch Series 4 has a 44 mm form factor and uses either a 7000 series anodized aluminum or stainless steel housing.
Aluminum/Steel* Digital Crown
Details: *This Apple Watch Series 4 model uses either a 7000 series anodized aluminum or stainless steel housing. Both metal types are available in silver, gold, and dark "space gray" color options.
2.0" OLED* 368x448
Details: *The face of the 44 mm size Apple Watch Series 4 contains a roughly 2.0" (368x448) LTPO OLED "Retina" display with Force Touch capability. It has rounded corners and a 977 square mm display area. It has a brightness of 1000 nits. Apple Watch Series 4 models with an aluminum case are covered by scratch-resistant Ion-X glass, those with stainless steel have the display covered by "Sapphire" crystal.
802.11b/g/n 2.4 GHz 5.0
Details: All Apple Watch Series 4 models have built-in support for 802.11b/g/n 2.4 GHz and Bluetooth 5.0. This specific model also has GPS (as well as GLONASS, Galileo, and QZSS) support in addition to support for LTE bands 2 (1900 MHz), 4 (AWS), 5 (850 MHz), 12 (700 MHz), 13 (700c MHz), 17 (700b MHz), 18 (800 MHz), 19 (800 MHz), 25 (1900 MHz), 26 (800 MHz), and 41 (TD 2500) as well as UMTS 800 MHz, 1700 MHz, and 1900 MHz in the United States, Canada, and Puerto Rico (which last time we checked was part of the US). It is not intended to work in other countries.
Lithium Ion* 1-18 Hours*
Details: *The Apple Watch Series 4 uses a built-in, proprietary Lithium Ion battery. Apple reports that this cellular-equipped device provides "up to 18 hours" of battery life which includes "90 time checks, 90 notifications, 45 minutes of app use and a 60 minute workout with music playback from Apple Watch via Bluetooth over the course of 18 hours." Battery life for other uses varies -- reportedly "up to 2 hours" of talk time connected to an iPhone, "over 1 hour" connected to LTE, "up to 10 hours" of audio playback from Apple Watch storage, "up to 7 hours" of streaming from a music playlist with LTE, "up to 5 hours" streaming live radio with LTE, "up to 10 hours" of working out indoors, "up to 6 hours" of working out outdoors with GPS, "up to 5 hours" of working out outdoors with GPS and LTE, and "up to 4 hours" of working out outdoors with streaming audio, GPS, and LTE.
MTUU2LL/A** Watch Series 4 44 mm
Details: *Apple estimates that the Apple Watch Series 4 models completely charge in "about 2 hours" and charge to 80% capacity in "about 1.5 hours."

**For 44 mm, cellular-capable models, MTUU2LL/A is the order number for the silver colored aluminum case with a white fluoroelastomer rubber "Sport Band." With a silver colored aluminum case and a "Seashell" gray fabric "Sport Loop," the order number is MTUV2LL/A. The gold colored aluminum case with a "Pink Sand" fluoroelastomer rubber "Sport Band" and "Pink Sand" fabric "Sport Loop" are MTV02LL/A and MTV12LL/A, respectively. The dark "Space Gray" colored aluminum case and a black fluoroelastomer rubber "Sport Band" and black fabric "Sport Loop," are MTUW2LL/A and MTUX2LL/A, respectively.

With a silver colored stainless steel case and a white fluoroelastomer rubber "Sport Band" and silver colored metal "Milanese Loop," the order numbers are MTV22LL/A and MTV42LL/A, respectively. The gold colored stainless steel case with a beige "Stone" fluoroelastomer rubber "Sport Band" and gold colored metal "Milanese Loop" are MTV72LL/A and MTV82LL/A, respectively. Finally, the dark "Space Black" colored stainless steel case and black fluoroelastomer rubber "Sport Band" and black "Milanese Loop" are MTV52LL/A and MTV62LL/A, respectively.
A1976* (EMC 3228*) Watch4,4
Details: *This model number and EMC number are shared by multiple models. The model number is externally listed on the housing in the "groove" where the bottom strap connects. It also is listed on the box and within software. The EMC number only is listed within software under Settings > General > Regulatory.

Also see: All Apple Watch models with the A1976* Model Number, the 3228* EMC Number, and the Watch4,4 Model Identifier.
watchOS 5.0 (16R364) watchOS 10.x
Details: This Apple Watch fully supports the last version of watchOS 5 and watchOS 6. It supports the final version of watchOS 7 and watchOS 8, but not all features are available. It additionally supports watchOS 9, but it does not include Apple Watch Mirroring or the expanded global keyboard options.

Finally, this model supports watchOS 10, but it does not measure time in daylight. It does not support watchOS 11 or later versions of the operating system.

watchOS 6 also requires an iPhone 6s or later running iOS 13 or later, watchOS 7 also requires an iPhone 6s or later running iOS 14 or later, watchOS 8 also requires an iPhone 6s or later running iOS 15 or later, watchOS 9 also requires an iPhone 8 or later running iOS 16 or later, and watchOS 10 also requires an iPhone XS or iPhone XR or later running iOS 17 or later.
1.73 x 1.50 x 0.42 1.40/1.69* ounces
Details: In inches - height by width by depth (44 mm x 38 mm x 10.7 mm). Configurations with aluminum cases weigh 1.4 ounces (36.7 grams) and those with stainless steel weigh 1.69 ounces (47.9 grams).
US$529-US$849* US$150-US$250
Details: *44 mm Apple Watch Series 4 (GPS+Cellular) models originally were US$529 with an aluminum case and a fluoroelastomer rubber "Sport Band" or fabric "Sport Loop" regardless of color. Models with a stainless steel case and a fluoroelastomer rubber "Sport Band" and a metal "Milanese Loop" were US$749 and US$849, respectively.

Please note that on average the estimated current retail pricing of used devices is updated twice a year (please refer to the date on the bottom of the page for the date last updated).

Photo Credit: Apple, Inc.



Global original prices for the Apple Watch Series 4 (Cellular, US/CA, 44 mm) in 34 different countries and territories follow; organized alphabetically by region.

For global original prices for all Apple Watch models in one particular country on a single page, please refer to Everyi.com's Global Original Prices section.

Original Prices - North & South America

C$689-C$1119 N/A
N/A US$529-US$849*

Original Prices - Europe

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Original Prices - Asia

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S$498 N/A
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Original Prices - Australia & New Zealand

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If you have additional original prices for this model, please get in touch. Thank you.


Ten of the most popular Q&As about the Apple Watch line follow.



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