Apple Watch Series 4 44mm Review | 126 Data compared

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  • Avg. price: ~£95
  • Screen size: 1.78 inch
  • Battery life: 0.88 day/s
  • Display type: OLED

Apple Watch Series 4 44mm review. Compare 126 technical specifications and user reviews to see how it ranks among smartwatches and if it is worth buying.

7.2

Overall score

What it is: An overall evaluation of the smartwatch's quality, based on technical analyses and user reviews.

When it matters: When you need a quick reference to identify the best Smartwatches on the market.

Score components:

90.0%

7.3

Technical Score

10.0%

6.8

User score

Very good
7.3

Technical Score

What it is: An assessment of the smartwatch's technical performance, covering eight key areas: performance & hardware, software, camera, connectivity, display, battery, audio, and design.

When it matters: When you want to compare Smartwatches based on technical performance and available features.

Score components:

24.0%

6.0

Health

21.0%

9.9

Fitness

16.0%

3.6

Battery

14.0%

8.6

Smart features

12.0%

8.7

Connectivity

9.0%

7.4

Display & Design

4.0%

6.7

Hardware

Very good
6.8

User score

What it is: A rating that combines user reviews and the total number of reviews received by the smartwatch

When it matters: When you want to know how a smartwatch handles daily tasks and how reliable it remains over time according to user feedback.

Score components:

70.0%

8.2

User reviews

30.0%

3.6

Popularity

User score:
amazon
4.0
(53)
amazon
4.5
(11)

(Reviews last updated: Apr 2026)

Good
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    Best prices

    Best rankings

    ?

    Available: ranking among products currently available (including other versions of this product).
    All: ranking among all products in the database.

    Technical Specifications of smartwatch Apple Watch Series 4 44mm

    Technical Score

    What it is: An assessment of the smartwatch's technical performance, covering eight key areas: performance & hardware, software, camera, connectivity, display, battery, audio, and design.

    When it matters: When you want to compare Smartwatches based on technical performance and available features.

    Score components:

    24.0%

    6.0

    Health

    21.0%

    9.9

    Fitness

    16.0%

    3.6

    Battery

    14.0%

    8.6

    Smart features

    12.0%

    8.7

    Connectivity

    9.0%

    7.4

    Display & Design

    4.0%

    6.7

    Hardware

    7.3
    Apple Watch Series 4 44mm has a technical score of 7.29 points, which is higher than 74% of smartwatches.
    User score

    What it is: A rating that combines user reviews and the total number of reviews received by the smartwatch

    When it matters: When you want to know how a smartwatch handles daily tasks and how reliable it remains over time according to user feedback.

    Score components:

    70.0%

    8.2

    User reviews

    30.0%

    3.6

    Popularity

    User score:
    amazon
    4.0
    (53)
    amazon
    4.5
    (11)

    (Reviews last updated: Apr 2026)

    6.8
    Apple Watch Series 4 44mm has a user score of 6.81 points, which is lower than 85.6% of smartwatches.
    Popularity
    What it is: An indicator based on the number of reviews received by the smartwatch.
    When it matters: When you prefer to purchase a product chosen and reviewed by many other consumers.
    3.6
    Apple Watch Series 4 44mm has a popularity of 3.6 points, which is higher than 54.3% of smartphones.
    Ratio quality/price

    What it is: An indicator that combines the smartwatch's overall rating with its cost.

    When it matters: When you are looking for a smartwatch with a good balance between quality and price.

    Score components:

    60.0%

    7.2

    Overall score

    40.0%

    10

    Price

    8.1
    Apple Watch Series 4 44mm has a quality-to-price ratio of 8.1 points, which is higher than 78% of smartphones.
    Brand name
    What it is: The company that designs, sells, and supports the watch.
    When it matters: When brand ecosystem, style, or support matters to you.

    Importance: MEDIUM

    Apple
    Heart rate monitor
    What it is: A built-in sensor that measures your pulse directly from the wrist.
    When it matters: When you want health data from your wrist during the day or night.

    Importance: HIGH

    yes
    Apple Watch Series 4 44mm includes a heart rate monitor. 90.4% of smartwatches include a heart rate monitor.
    Blood oxygen monitoring
    What it is: A wrist-based feature that estimates blood oxygen saturation over time.
    When it matters: When you want health data from your wrist during the day or night.

    Importance: HIGH

    no
    Apple Watch Series 4 44mm does not support blood oxygen monitoring. 64.4% of smartwatches support blood oxygen monitoring.
    ECG
    What it is: The ability to record a single-lead electrocardiogram from the wrist.
    When it matters: When you want health data from your wrist during the day or night.

    Importance: HIGH

    yes
    Apple Watch Series 4 44mm supports ECG. 15.1% of smartwatches support ECG.
    Irregular heart rate warnings
    What it is: Notifications that flag heart-rate patterns which appear unusually irregular.
    When it matters: When you want health data from your wrist during the day or night.

    Importance: MEDIUM

    yes
    Apple Watch Series 4 44mm supports irregular heart rate warnings. 43.7% of smartwatches support irregular heart rate warnings.
    Show more
    Accelerometer
    What it is: A motion sensor that measures acceleration, steps, gestures, and general movement.
    When it matters: When you track workouts and want better training data.

    Importance: MEDIUM

    yes
    Apple Watch Series 4 44mm includes an accelerometer. 99.1% of smartwatches include an accelerometer.
    Barometer
    What it is: A pressure sensor used for altitude changes, elevation estimates, and weather-related context.
    When it matters: When you run, ride, hike, or navigate without relying on your phone.

    Importance: MEDIUM

    yes
    Apple Watch Series 4 44mm includes a barometer. 45.6% of smartwatches include a barometer.
    Gyroscope
    What it is: A motion sensor that measures rotation and helps interpret wrist movement more accurately.
    When it matters: When you track workouts and want better training data.

    Importance: MEDIUM

    yes
    Apple Watch Series 4 44mm includes a gyroscope. 64.6% of smartwatches include a gyroscope.
    Cadence sensor
    What it is: A sensor input used to measure step or pedal rhythm during training.
    When it matters: When you track workouts and want better training data.

    Importance: MEDIUM

    yes
    Apple Watch Series 4 44mm includes a cadence sensor. 20.1% of smartwatches include a cadence sensor.
    Distance tracking
    What it is: The ability to measure how far you move during walks, runs, rides, or other activities.
    When it matters: When you track workouts and want better training data.

    Importance: MEDIUM

    yes
    Apple Watch Series 4 44mm supports distance tracking. 95.7% of smartwatches support distance tracking.
    Show more
    Battery life
    What it is: The typical endurance the watch can deliver on a full charge under the stated usage pattern.
    When it matters: When you do not want to charge the watch too often.

    Importance: HIGH

    Good value: >=7 days

    0.88 day/s
    Apple Watch Series 4 44mm offers a battery life of 0.88 day/s which is shorter than that of 96.1% of smartwatches and equal to that of 1.7% of smartwatches.
    Converted from roughly 18-24 hours of battery life.
    Battery life in training mode
    What it is: The expected endurance while workout tracking and related training functions are active.
    When it matters: When you do not want to charge the watch too often.

    Importance: HIGH

    Good value: >=36.8 h

    6 h
    Apple Watch Series 4 44mm lasts 6 h in training mode which is shorter than 83.8% of smartwatches and equal to that of 6% of smartwatches.
    Battery life with GPS on
    What it is: The expected runtime when satellite tracking stays active throughout use.
    When it matters: When you do not want to charge the watch too often.

    Importance: HIGH

    Good value: >=35 h

    5 h
    Apple Watch Series 4 44mm lasts 5 h with GPS on which is shorter than 91% of smartwatches and equal to that of 2.8% of smartwatches.
    Battery power
    What it is: The battery capacity, usually measured in milliampere-hours (mAh).
    When it matters: When you do not want to charge the watch too often.

    Importance: HIGH

    Good value: >=397 mAh

    292 mAh
    Apple Watch Series 4 44mm has a battery capacity of 292 mAh which is smaller than the batteries in 56.6% of smartwatches and equal to those in 0.2% of smartwatches.
    Charge time
    What it is: The time needed to recharge the battery from empty to full or to a stated percentage.
    When it matters: When you want to top up the battery quickly.

    Importance: HIGH

    Good value: <=102 min

    110 min
    Apple Watch Series 4 44mm charges in 110 min which is faster than 57.6% of smartwatches and equal to the charge time of 0.6% of smartwatches.
    Normalized from hour-based sources to 6600 minutes.
    Show more
    Operating system
    What it is: The software platform that runs the watch interface, apps, and core functions.
    When it matters: When you care about apps, features, and long-term support.

    Importance: HIGH

    watchOS
    Apple Watch Series 4 44mm runs watchOS which is more advanced than the operating system in 95.7% of smartwatches and the same as that in 4.3% of smartwatches.
    OS detail: watchOS (10.6).
    Software update frequency
    What it is: Shows how actively the watch is still updated: regular means ongoing updates throughout active support, occasional means updates every few months or only from time to time, and ended means active software support has mostly stopped.
    When it matters: When you care how actively the watch is still supported with fixes, patches, and new features.

    Importance: MEDIUM

    ended
    Apple Watch Series 4 44mm has ended software update support which is equal to that of 57.5% of smartwatches.
    Software support appears ended or discontinued.
    Third-party app support
    What it is: Support for installing or using apps from developers beyond the watch maker.
    When it matters: When you care about apps, features, and long-term support.

    Importance: MEDIUM

    yes
    Apple Watch Series 4 44mm supports third-party apps. 47.6% of smartwatches support third-party apps.
    Notifications
    What it is: Mirroring of calls, messages, apps, or other alerts on the watch.
    When it matters: When you want to check alerts without taking out your phone.

    Importance: MEDIUM

    yes
    Apple Watch Series 4 44mm supports notifications. 99.9% of smartwatches support notifications.
    Voice assistant support
    What it is: Support for a voice assistant that can answer queries or trigger actions from the wrist.
    When it matters: When you want to control the watch or reply without typing.

    Importance: MEDIUM

    yes
    Apple Watch Series 4 44mm supports voice assistants. 68% of smartwatches support voice assistants.
    Show more
    Cellular module
    What it is: Built-in mobile connectivity that can keep the watch online away from the phone.
    When it matters: When you want calls, messages, or data without your phone nearby.

    Importance: HIGH

    ?
    SIM cards
    What it is: The number or type of SIM options the watch accepts for cellular service.
    When it matters: When you want calls, messages, or data without your phone nearby.

    Importance: LOW

    Good value: eSIM support

    ?
    GPS
    What it is: Built-in satellite positioning that lets the watch record location during outdoor activity.
    When it matters: When you run, ride, hike, or navigate without relying on your phone.

    Importance: HIGH

    yes
    Apple Watch Series 4 44mm supports GPS. 56.1% of smartwatches support GPS.
    Galileo support
    What it is: Support for Galileo satellites alongside other positioning systems.
    When it matters: When you run, ride, hike, or navigate without relying on your phone.

    Importance: MEDIUM

    yes
    Apple Watch Series 4 44mm supports Galileo navigation. 38.7% of smartwatches support Galileo navigation.
    Compass
    What it is: A directional sensor that helps the watch determine heading and orientation.
    When it matters: When you run, ride, hike, or navigate without relying on your phone.

    Importance: MEDIUM

    yes
    Apple Watch Series 4 44mm includes a compass. 49.3% of smartwatches include a compass.
    Show more
    Screen size
    What it is: The diagonal measurement of the visible display area, usually expressed in inches.
    When it matters: When you want the screen to be easy to read at a glance.

    Importance: HIGH

    Good value: >=1.5 inch

    1.78 inch
    Apple Watch Series 4 44mm has a screen size of 1.78 inch which is larger than the screens of 85.5% of smartwatches and equal to those of 2.9% of smartwatches.
    Some sources mention multiple/uncertain size variants.
    Display type
    What it is: The screen technology used by the watch, such as AMOLED, OLED, or memory-in-pixel LCD.
    When it matters: When you want the screen to be easy to read at a glance.

    Importance: HIGH

    OLED
    Apple Watch Series 4 44mm uses a OLED display type which is less advanced than that of 51.4% of smartwatches and the same as that of 9.7% of smartwatches.
    Retina branding. LTPO panel wording.
    Resolution
    What it is: The total number of pixels available on the watch display.
    When it matters: When you want the screen to be easy to read at a glance.

    Importance: MEDIUM

    Good value: >=416 x 416

    368 x 448
    Apple Watch Series 4 44mm has a display resolution of 368 x 448 which is higher than that of 57.2% of smartwatches and equal to that of 2.7% of smartwatches.
    Pixel density
    What it is: The number of pixels packed into each inch of the display.
    When it matters: When you want the screen to be easy to read at a glance.

    Importance: MEDIUM

    Good value: >=326 ppi

    326 ppi
    Apple Watch Series 4 44mm has a pixel density of 326 ppi which is higher than that of 46.4% of smartwatches and equal to that of 8.3% of smartwatches.
    Display brightness
    What it is: The peak brightness the display can reach, usually expressed in nits.
    When it matters: When you want the screen to stay readable outdoors and in strong sunlight.

    Importance: HIGH

    Good value: >=1000 nits

    1,000 nits
    Apple Watch Series 4 44mm reaches 1000 nits nits of display brightness, which is higher than that of 59.5% of smartwatches and equal to that of 26.5% of smartwatches.
    Show more
    CPU speed
    What it is: The clock speed of the watch processor, usually expressed in GHz or MHz.
    When it matters: When you want apps and menus to feel smooth.

    Importance: MEDIUM

    Good value: Modern standard

    2 x 1.5 GHz
    Apple Watch Series 4 44mm uses a CPU configuration of 2 x 1.5 GHz which is faster than that in 77.2% of smartwatches and equal to that in 1.2% of smartwatches.
    Derived from core-count and per-core clock notation
    Processor model
    What it is: The processor model is the chipset or SoC that powers the watch's performance, connectivity, and efficiency.
    When it matters: When you care about app responsiveness, platform generation, and long-term feature support.

    Importance: LOW

    Good value: modern smartwatch chipset

    Apple S4
    Apple Watch Series 4 44mm uses the Apple S4 processor model.
    RAM
    What it is: The amount of working memory available for apps, watch faces, and background tasks.
    When it matters: When you want apps and menus to feel smooth.

    Importance: MEDIUM

    Good value: >=1 GB

    1 GB
    Apple Watch Series 4 44mm has 1 GB of RAM which is larger than the RAM in 32.3% of smartwatches and equal to that of 34.6% of smartwatches.
    Internal storage
    What it is: Built-in storage for apps, music, watch faces, and other local data.
    When it matters: When you want more room for apps, music, or offline data.

    Importance: MEDIUM

    Good value: >=8 GB

    16 GB
    Apple Watch Series 4 44mm uses 16 GB for internal storage which is larger than that of 79.9% of smartwatches and equal to that of 4.7% of smartwatches.
    External memory slot
    What it is: A slot for expandable storage such as a memory card, if the watch provides one.
    When it matters: When you want more room for apps, music, or offline data.

    Importance: LOW

    no
    Apple Watch Series 4 44mm does not include an external memory slot. 0.3% of smartwatches include an external memory slot.
    Show more

    Apple Watch Series 4 44mm vs the average smartwatch

    • Has ECG
      Apple Watch Series 444mm supports ECG, the average smartwatch does not. 15.1% of smartwatches support ECG.
      What it is: The ability to record a single-lead electrocardiogram from the wrist.
      When it matters: When you want health data from your wrist during the day or night.

      Importance: HIGH

      Apple Watch Series 444mm supports ECG, the average smartwatch does not. 15.1% of smartwatches support ECG.
    • More advanced operating system
      Apple Watch Series 444mm runs a more advanced operating system than the average smartwatch (watchOS vs Proprietary OS).
      OS detail: watchOS (10.6).
      What it is: The software platform that runs the watch interface, apps, and core functions.
      When it matters: When you care about apps, features, and long-term support.

      Importance: HIGH

      Apple Watch Series 444mm runs a more advanced operating system than the average smartwatch (watchOS vs Proprietary OS).watchOS vs Proprietary OS
    • Includes fall detection
      Apple Watch Series 444mm supports fall detection, the average smartwatch does not. 22.4% of smartwatches support fall detection.
      What it is: Automatic detection of hard falls that can trigger checks or emergency actions.
      When it matters: When you want extra help in an emergency.

      Importance: HIGH

      Apple Watch Series 444mm supports fall detection, the average smartwatch does not. 22.4% of smartwatches support fall detection.
    • Includes wireless charging
      Apple Watch Series 444mm supports wireless charging, the average smartwatch does not. 24.9% of smartwatches support wireless charging.
      What it is: Support for recharging the watch through a charging pad, puck, or other cable-free method.
      When it matters: When you want to top up the battery quickly.

      Importance: MEDIUM

      Apple Watch Series 444mm supports wireless charging, the average smartwatch does not. 24.9% of smartwatches support wireless charging.
    • Has NFC
      Apple Watch Series 444mm supports NFC, the average smartwatch does not. 42.5% of smartwatches support NFC.
      What it is: Near-field communication hardware used for payments, pairing, or quick tap-based actions.
      When it matters: When you want to pay quickly or pair devices with a tap.

      Importance: HIGH

      Apple Watch Series 444mm supports NFC, the average smartwatch does not. 42.5% of smartwatches support NFC.
    • Has HRV tracking
      Apple Watch Series 444mm supports HRV tracking, the average smartwatch does not. 38.2% of smartwatches support HRV tracking.
      What it is: Measurement of heart-rate variability, the change in timing between heartbeats.
      When it matters: When you want health data from your wrist during the day or night.

      Importance: MEDIUM

      Apple Watch Series 444mm supports HRV tracking, the average smartwatch does not. 38.2% of smartwatches support HRV tracking.
    • Supports Emergency SOS
      Apple Watch Series 444mm includes Emergency SOS, the average smartwatch does not. 42.4% of smartwatches include Emergency SOS.
      What it is: An emergency feature that can contact help or alert trusted people from the watch.
      When it matters: When you want extra help in an emergency.

      Importance: HIGH

      Apple Watch Series 444mm includes Emergency SOS, the average smartwatch does not. 42.4% of smartwatches include Emergency SOS.
    • Supports VO2 max
      Apple Watch Series 444mm measures VO2 max, the average smartwatch does not. 49.3% of smartwatches measure VO2 max.
      What it is: Estimated VO2 max, a fitness metric linked to aerobic capacity and endurance.
      When it matters: When you track workouts and want better training data.

      Importance: MEDIUM

      Apple Watch Series 444mm measures VO2 max, the average smartwatch does not. 49.3% of smartwatches measure VO2 max.
    • Has ECG
      Apple Watch Series 444mm supports ECG, the average smartwatch does not. 15.1% of smartwatches support ECG.
    • Has HRV tracking
      Apple Watch Series 444mm supports HRV tracking, the average smartwatch does not. 38.2% of smartwatches support HRV tracking.
    • Supports VO2 max
      Apple Watch Series 444mm measures VO2 max, the average smartwatch does not. 49.3% of smartwatches measure VO2 max.
    • Has irregular heart alerts
      Apple Watch Series 444mm supports irregular heart rate warnings, the average smartwatch does not. 43.7% of smartwatches support irregular heart rate warnings.
    • Has weight tracking
      Apple Watch Series 444mm supports weight tracking, the average smartwatch does not. 39.2% of smartwatches support weight tracking.
    • Has multi-sport mode
      Apple Watch Series 444mm includes a multi-sport mode, the average smartwatch does not. 49.4% of smartwatches include a multi-sport mode.
    • Has barometer
      Apple Watch Series 444mm includes a barometer, the average smartwatch does not. 45.6% of smartwatches include a barometer.
    • Has cadence sensor
      Apple Watch Series 444mm includes a cadence sensor, the average smartwatch does not. 20.1% of smartwatches include a cadence sensor.
    • Has external HR monitor
      Apple Watch Series 444mm supports external heart rate monitor compatibility, the average smartwatch does not. 41.3% of smartwatches support external heart rate monitor compatibility.
    • Includes wireless charging
      Apple Watch Series 444mm supports wireless charging, the average smartwatch does not. 24.9% of smartwatches support wireless charging.
    • 10 min shorter charge time
      Apple Watch Series 444mm charges faster than the average smartwatch (110 min vs 120 min). The average smartwatch charges in 120 min.
    • Has NFC
      Apple Watch Series 444mm supports NFC, the average smartwatch does not. 42.5% of smartwatches support NFC.
    • Includes maps
      Apple Watch Series 444mm supports maps, the average smartwatch does not. 32.2% of smartwatches support maps.
    • Has compass
      Apple Watch Series 444mm includes a compass, the average smartwatch does not. 49.3% of smartwatches include a compass.
    • Supports Wi-Fi
      Apple Watch Series 444mm supports Wi-Fi, the average smartwatch does not. 43.4% of smartwatches support Wi-Fi.
    • Supports Galileo
      Apple Watch Series 444mm supports Galileo navigation, the average smartwatch does not. 38.7% of smartwatches support Galileo navigation.
    • 0.38 inch larger screen size
      Apple Watch Series 444mm has a larger screen size than the average smartwatch (1.8 inch vs 1.40 inch). The average smartwatch screen is 1.40 inch.
    • 400 nits higher display brightness
      Apple Watch Series 444mm has higher display brightness than the average smartwatch (1,000 nits nits vs 600 nits nits). The average smartwatch reaches 600 nits nits.
    • Better case material
      Apple Watch Series 444mm uses aluminum, stainless steel for the case material, while the average smartwatch uses polycarbonate.
    • Better band material
      Apple Watch Series 444mm uses silicone, nylon, stainless steel for the band material, while the average smartwatch uses silicone.
    • 0.9 mm thinner watch body
      Apple Watch Series 444mm is thinner than the average smartwatch (10.7 mm vs 11.60 mm). The average smartwatch thickness is 11.60 mm.
    • 8.3 g lighter weight
      Apple Watch Series 444mm is lighter than the average smartwatch (36.7 g vs 45 g). The average smartwatch weighs 45 g.
    • More advanced operating system
      Apple Watch Series 444mm runs a more advanced operating system than the average smartwatch (watchOS vs Proprietary OS).
    • Includes fall detection
      Apple Watch Series 444mm supports fall detection, the average smartwatch does not. 22.4% of smartwatches support fall detection.
    • Supports Emergency SOS
      Apple Watch Series 444mm includes Emergency SOS, the average smartwatch does not. 42.4% of smartwatches include Emergency SOS.
    • Supports third-party apps
      Apple Watch Series 444mm supports third-party apps, the average smartwatch does not. 47.6% of smartwatches support third-party apps.
    • 12 GB more storage
      Apple Watch Series 444mm offers more internal storage than the average smartwatch (16 GB vs 4 GB). The average smartwatch provides 4 GB of storage.
    • Faster CPU speed
      Apple Watch Series 444mm uses a CPU configuration of 2x 1.5 GHz, while the average smartwatch uses 1 GHz.
    • More advanced processor model
      Apple Watch Series 444mm uses the Apple S4 processor model, while the average smartwatch uses Snapdragon 400.
    • 1 more microphones
      Apple Watch Series 444mm has more microphones than the average smartwatch (2 vs 1). The average smartwatch includes 1 microphones.
    • No blood oxygen
      Apple Watch Series 444mm does not support blood oxygen monitoring, the average smartwatch does. 64.4% of smartwatches support blood oxygen monitoring.
    • No stress monitoring
      Apple Watch Series 444mm does not support stress monitoring, the average smartwatch does. 65.4% of smartwatches support stress monitoring.
      Some stress features may depend on third-party apps.
    • 5,534 m lower max altitude
      Apple Watch Series 444mm supports a lower maximum altitude than the average smartwatch (3,000 m vs 8,534 m). The average smartwatch reaches 8,534 m.
    • 6.12 day/s shorter battery life
      Apple Watch Series 444mm offers 0.9 day/s of battery life, while the average smartwatch offers 7 day/s.
      Converted from roughly 18-24 hours of battery life.
    • 15 h shorter GPS battery life
      Apple Watch Series 444mm lasts less with GPS on than the average smartwatch (5 h vs 20 h). The average smartwatch lasts 20 h.
    • 14 h shorter training battery life
      Apple Watch Series 444mm lasts less in training mode than the average smartwatch (6 h vs 20 h). The average smartwatch lasts 20 h.
    • Not compatible with Android
      Apple Watch Series 444mm is not compatible with Android, the average smartwatch is. 95.3% of smartwatches are compatible with Android.
    • No always-on display
      Apple Watch Series 444mm does not have an always-on display, the average smartwatch does. 66.4% of smartwatches have an always-on display.
    • Basic display type
      Apple Watch Series 444mm uses OLED display technology, while the average smartwatch features AMOLED.
      Retina branding. LTPO panel wording.
    • No smart alarm
      Apple Watch Series 444mm does not support a smart alarm, the average smartwatch does. 52.7% of smartwatches support this feature.
      No native smart alarm; third-party app required.
    • 3 year/s older release date
      Apple Watch Series 444mm is an older model than the average smartwatch (2,018 vs 2,021). The average smartwatch was released in 2,021.
      September 2,018
    • No blood oxygen
      Apple Watch Series 444mm does not support blood oxygen monitoring, the average smartwatch does. 64.4% of smartwatches support blood oxygen monitoring.
      What it is: A wrist-based feature that estimates blood oxygen saturation over time.
      When it matters: When you want health data from your wrist during the day or night.

      Importance: HIGH

      Apple Watch Series 444mm does not support blood oxygen monitoring, the average smartwatch does. 64.4% of smartwatches support blood oxygen monitoring.
    • No always-on display
      Apple Watch Series 444mm does not have an always-on display, the average smartwatch does. 66.4% of smartwatches have an always-on display.
      What it is: A display mode that keeps key information visible even when the watch is idle.
      When it matters: When you want the screen to be easy to read at a glance.

      Importance: HIGH

      Apple Watch Series 444mm does not have an always-on display, the average smartwatch does. 66.4% of smartwatches have an always-on display.
    • No stress monitoring
      Apple Watch Series 444mm does not support stress monitoring, the average smartwatch does. 65.4% of smartwatches support stress monitoring.
      Some stress features may depend on third-party apps.
      What it is: Stress estimates derived from heart rate, HRV, or similar body signals.
      When it matters: When you want health data from your wrist during the day or night.

      Importance: HIGH

      Apple Watch Series 444mm does not support stress monitoring, the average smartwatch does. 65.4% of smartwatches support stress monitoring.
    • 6.12 day/s shorter battery life
      Apple Watch Series 444mm offers 0.9 day/s of battery life, while the average smartwatch offers 7 day/s.
      Converted from roughly 18-24 hours of battery life.
      What it is: The typical endurance the watch can deliver on a full charge under the stated usage pattern.
      When it matters: When you do not want to charge the watch too often.

      Importance: HIGH

      Good value: >=7 days

      Apple Watch Series 444mm offers 0.9 day/s of battery life, while the average smartwatch offers 7 day/s.0.88 day/s vs 7 day/s
    • Not compatible with Android
      Apple Watch Series 444mm is not compatible with Android, the average smartwatch is. 95.3% of smartwatches are compatible with Android.
      What it is: Shows how well the smartwatch works with Android pairing, syncing, and core features.
      When it matters: When you use an Android phone and want the watch to pair, sync, and keep its main features working properly.

      Importance: MEDIUM

      Apple Watch Series 444mm is not compatible with Android, the average smartwatch is. 95.3% of smartwatches are compatible with Android.
    • 15 h shorter GPS battery life
      Apple Watch Series 444mm lasts less with GPS on than the average smartwatch (5 h vs 20 h). The average smartwatch lasts 20 h.
      What it is: The expected runtime when satellite tracking stays active throughout use.
      When it matters: When you do not want to charge the watch too often.

      Importance: HIGH

      Good value: >=35 h

      Apple Watch Series 444mm lasts less with GPS on than the average smartwatch (5 h vs 20 h). The average smartwatch lasts 20 h.5 h vs 20 h
    • Basic display type
      Apple Watch Series 444mm uses OLED display technology, while the average smartwatch features AMOLED.
      Retina branding. LTPO panel wording.
      What it is: The screen technology used by the watch, such as AMOLED, OLED, or memory-in-pixel LCD.
      When it matters: When you want the screen to be easy to read at a glance.

      Importance: HIGH

      Apple Watch Series 444mm uses OLED display technology, while the average smartwatch features AMOLED.OLED vs AMOLED
    • No smart alarm
      Apple Watch Series 444mm does not support a smart alarm, the average smartwatch does. 52.7% of smartwatches support this feature.
      No native smart alarm; third-party app required.
      What it is: A smart alarm tries to wake you during a lighter sleep phase within a chosen time window instead of at one fixed minute.
      When it matters: It matters if you wear your smartwatch overnight and want a gentler wake-up based on your sleep pattern rather than a standard fixed alarm.

      Importance: LOW

      Apple Watch Series 444mm does not support a smart alarm, the average smartwatch does. 52.7% of smartwatches support this feature.

    Graphic comparison of Apple Watch Series 4 44mm and other Smartwatches

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    Third-party reviews

    (Reviews last updated: Apr 2026)

    What customers like about Apple Watch Series 4 44mm?

    • Larger 44mm display with thinner bezels and more viewable area
    • Significantly faster performance with the S4 dual-core processor
    • Advanced health features including FDA-cleared ECG and Fall Detection
    • Improved call quality with a 50% louder speaker and repositioned microphone
    • Elegant, thinner design that remains compatible with older watch bands
    • Haptic feedback added to the Digital Crown for a more tactile feel

    What customers dislike about Apple Watch Series 4 44mm?

    • Battery life still requires daily charging (roughly 18-24 hours)
    • Lack of an Always-On display (first introduced in the later Series 5)
    • No built-in native sleep tracking due to charging requirements
    • Higher starting price compared to previous generations
    • Limited watch face customisation options compared to competitors
    • Only compatible with iPhone users

    Expert reviews

    G
    gq-magazine.co.uk
    23/01/2019

    The British GQ review hails the Apple Watch Series 4 as a 'coming of age' moment for the device, featuring a refined design with a 30% larger screen, faster S4 processor, and 50% louder speaker. Key advancements include a slimmer chassis, improved haptic feedback in the digital crown, and enhanced reception, making it a functional upgrade over previous models. Health capabilities...Read more

    T
    thesweetsetup.com
    16/10/2018

    The Sweet Setup’s review frames the Apple Watch Series 4 as a major, elegant redesign—particularly in the gold stainless steel finish—that acts as a functional piece of jewelry rather than just a tech gadget. Key pros include a refined, thinner profile and a larger display with improved LTE connectivity, allowing for reliable use without an iPhone. Additionally, the review praises...Read more

    W
    wareable.com
    19/09/2018

    The Apple Watch Series 4, as reviewed by Wareable, represents a major advancement in wearable technology, featuring a larger, more information-dense display and a faster S4 processor. Key pros highlighted include the redesigned, thinner chassis with 40mm and 44mm options and the highly functional 'Infograph' watch face. Health and safety are focal points, with the device introducing...Read more

    T
    tomsguide.com
    17/09/2021

    The Apple Watch Series 4 features a significant design overhaul with 40mm and 44mm cases, providing 30% more screen area and a thinner profile. Key upgrades include a fast S4 processor, improved haptic feedback in the digital crown, and new Infograph faces supporting up to eight complications. Health and safety are enhanced by an FDA-cleared ECG app, electrical heart-rate sensors...Read more

    T
    techradar.com
    07/06/2021

    The Apple Watch Series 4 features a larger, redesigned display with rounded corners and a faster S4 processor. Key pros include enhanced health features like FDA-cleared ECG functionality, fall detection, and a haptic digital crown. Fitness capabilities are strengthened with automatic workout detection and a louder speaker, though cons include the lack of an always-on display and...Read more

    T
    trustedreviews.com
    01/04/2019

    Trusted Reviews describes the Apple Watch Series 4 as a masterful design, featuring a larger, improved OLED display and a faster S4 processor. Key pros include enhanced fitness tracking, fall detection capabilities, and a 50% louder speaker compared to the Series 3. However, the device lacks an always-on display, requires daily charging, and does not include native sleep tracking,...Read more

    C
    cyclist.co.uk
    12/05/2019

    The Cyclist.co.uk review describes the Apple Watch Series 4 as an "insanely powerful" device with a sleeker, larger display and improved all-day wearability. Key pros include a clever water-ejection feature for the speaker, although the touchscreen is noted to be less effective in heavy rain. The watch boasts improved heart rate sensor accuracy, automatic workout detection, and...Read more

    H
    huffingtonpost.co.uk
    24/09/2018

    The Apple Watch Series 4, featuring a major redesign with a thinner profile and larger 40mm/44mm sizes, showcases a 30% larger OLED display. Key pros highlighted in the Huffington Post UK review include advanced health features like an ECG reader, fall detection, and faster performance via the S4 chip. The device also offers improved, louder speakers and retains compatibility with...Read more

    Gearbrain
    Gearbrain
    28/09/2018

    The GearBrain review rates the Apple Watch Series 4 as a major upgrade, featuring a 30% larger, near edge-to-edge display in 40mm and 44mm sizes, while maintaining a slim design that supports older bands. Performance is enhanced by the S4 chip, providing twice the speed of previous models, improved Haptic Crown, a 50% louder speaker, and critical health features like fall detection...Read more

    S
    stuff.tv
    25/09/2018

    The Apple Watch Series 4 represents a significant, "must-buy" redesign featuring a larger, thinner display and a snappier S4 chipset for improved performance. Key upgrades include a louder speaker, a haptic Digital Crown, and advanced, unique health features like fall detection and an FDA-cleared ECG. While praised for its, performance, drawbacks include a one-day battery life, lack...Read more

    C
    cnet.com
    02/01/2019

    The Apple Watch Series 4 represents a significant redesign, featuring a larger, curved-edge display with 30% more screen area, faster performance, and a louder speaker. Key health advancements include FDA-cleared ECG technology and fall detection, positioning it as a serious health monitoring tool. Pros highlighted by CNET include the sleeker, thinner design, the informative...Read more

    T
    t3.com
    25/04/2022

    The Apple Watch Series 4, as reviewed by T3, marks a significant redesign featuring a 30% larger, edge-to-edge screen, a slimmer chassis, and a faster S4 processor. Key pros include enhanced functionality from the haptic-feedback Digital Crown, a 50% louder speaker, and advanced health capabilities like ECG and fall detection. While the device excels in performance, T3 notes cons...Read more

    D
    dcrainmaker.com
    24/10/2018

    In his in-depth review of the Apple Watch Series 4, Ray Maker (DC Rainmaker) highlights the hardware redesign as the most significant update, praising the 30% larger display and faster S4 processor. Key pros include enhanced health features like ECG and fall detection, alongside a redesigned, durable ceramic back that improves cellular reception. For fitness, the device offers...Read more

    Z
    zeipad.com
    19/09/2018

    According to the review by zeiPAD, the Apple Watch Series 4 represents a significant redesign, featuring a "nearly frameless" screen that is 30% larger, rounded corners, and a slimmer, more comfortable case design. The device boasts superior performance with the S4 chip, a haptic-feedback Digital Crown, 50% louder audio, and critical health-monitoring capabilities like ECG and fall...Read more

    H
    hightechdad.com
    16/10/2018

    High Tech Dad’s review highlights the Apple Watch Series 4 as a significant leap forward, primarily due to its larger, edge-to-edge display and thinner profile, which allows for more information-dense watch faces and improved readability. The design offers a more comfortable fit, while the S4 chipset provides a faster, more responsive user experience, with apps launching almost...Read more

    C
    choose.co.uk
    10/08/2022

    The Apple Watch Series 4 features a 30% larger, edge-to-edge display in a thinner, lighter casing, which enhances navigation and readability [1.1]. It is praised for its faster performance, a 50% louder speaker, and user-friendly setup [1.1]. Key health capabilities include active heart rate monitoring and, although not active at launch, an ECG feature, along with new fall detection...Read more

    C
    chip.de
    26/09/2018

    The Apple Watch Series 4 features a significant redesign with a 30% larger, nearly borderless display in 40mm and 44mm cases, featuring a ceramic/sapphire back for better connectivity and a haptic digital crown. The device includes a 50% louder speaker, repositioned microphone for clearer calls, and a 64-bit S4 processor that doubles performance. Major upgrades include ECG...Read more

    G
    gamestar.de
    08/09/2023

    The review details that transitioning from the Apple Watch Series 4 to the Series 8 offers a faster, more responsive experience, with improved, snag-free performance, despite a similar underlying chip architecture. Key advantages include increased reliability and significantly reduced software freezes compared to the older model. Enhanced quality-of-life features on the Series 8,...Read more

    C
    computerwoche.de
    09/10/2018

    The Apple Watch Series 4 features a 30% larger display with thinner bezels in 40mm and 44mm sizes, while being lighter and thinner overall. Performance is bolstered by the 64-bit S4 processor, which offers significantly faster app loading and system responsiveness. Key health features include an FDA-cleared ECG app and improved fall detection, complemented by a 50% louder speaker...Read more

    C
    chip.de
    27/09/2018

    The Apple Watch Series 4 features a redesigned, roughly 30% larger edge-to-edge OLED display and faster performance driven by the S4 dual-core processor. This iteration delivers a more data-rich, responsive experience, enhancing app usage and navigation, notes the review. Health and safety capabilities are significantly improved with integrated ECG, fall detection, and a 50% louder...Read more

    W
    watchgeneration.fr
    28/09/2018

    The Apple Watch Series 4 features a significant redesign with a larger, rounded LTPO display and a thinner chassis, improving screen real estate and legibility. Powered by the faster S4 processor, the device offers a more responsive interface, while the haptic Digital Crown enhances user interaction. However, the device remains a premium, iPhone-dependent accessory rather than a...Read more

    N
    nakan.ch
    22/10/2018

    The Apple Watch Series 4 features a redesigned, thinner chassis with larger 40mm/44mm display options, offering more screen real estate and a faster S4 dual-core processor. Key hardware improvements include a redesigned Digital Crown with haptic feedback and enhanced, faster display technology. For fitness, the device provides improved heart rate monitoring, an ECG-capable...Read more

    L
    lesnumeriques.com
    12/10/2018

    Les Numériques highlights the Apple Watch Series 4 as a major design evolution, featuring a 30% larger, more immersive OLED display within a thinner, more ergonomic 40/44mm case, along with enhanced cellular reception. Performance is significantly boosted by the S4 dual-core processor, which doubles speed compared to its predecessor for a fluid user experience. Key features...Read more

    D
    digitec.ch
    09/10/2018

    The Apple Watch Series 4 features a redesigned, larger display (40mm/44mm) and improved performance with the S4 processor, offering a faster and more refined user experience. The device is highly praised for its comfortable, lightweight design, ease of setup, and robust connectivity. Notable health features include enhanced heart rate monitoring and fall detection. Performance is...Read more

    T
    tf1info.fr
    21/09/2018

    The TF1 Info review highlights the Apple Watch Series 4 as a major redesign, featuring a nearly borderless, 30% larger screen and a thinner, more comfortable chassis. Performance is significantly boosted by the new S4 chip, which doubles the speed of app launches, while new health features include fall detection and an electrocardiogram (ECG) sensor. However, the review notes a...Read more

    0
    01net.com
    26/09/2018

    The 01net.com review highlights the Apple Watch Series 4 as a major maturation of the product, defined by a 30% larger display with reduced bezels and a significantly faster S4 chip. Key health advancements include FDA-cleared ECG capabilities and automatic fall detection, paired with improved haptic feedback and a clearer speaker. While the design and performance are lauded, the...Read more

    S
    sport-passion.fr
    25/09/2018

    According to the Sport Passion review, the Apple Watch Series 4 introduces a significant redesign featuring a 30% larger screen, a thinner case, and a faster S4 processor. Key functional upgrades include a haptic digital crown, a 50% louder speaker, and improved, faster performance. For health and fitness, the device stands out with integrated ECG capabilities, fall detection, and...Read more

    N
    numerama.com
    25/09/2018

    The Apple Watch Series 4 represents a significant evolution in design, moving from a 'gadget' aesthetic to a more refined 'timepiece' look. Numerama highlights the nearly borderless OLED screen, which is 30% larger with rounded corners, as the standout feature that finally makes the display feel integrated into the case. Key pros include this expanded display area, a thinner and...Read more

    C
    cnetfrance.fr
    30/10/2018

    The Apple Watch Series 4 features a refined design with a 30% larger display, a faster S4 processor, and an improved speaker, representing a significant design upgrade over its predecessors. Haptic feedback on the digital crown adds a premium feel to navigation, though the device lacks an always-on display. Key health improvements include an FDA-cleared ECG app for arrhythmia...Read more

    M
    mac4ever.com
    12/10/2018

    The Apple Watch Series 4 represents a major design evolution featuring a 30% larger, edge-to-edge display and a thinner, lighter case. Key advantages include the faster S4 chip, a 50% louder speaker, and crucial health features such as ECG functionality and fall detection. Despite these upgrades, the device maintains full compatibility with previous bands. Technical improvements...Read more

    R
    revistagq.com
    24 de septiembre de 2018

    The Apple Watch Series 4 features a 30% larger, edge-to-edge display and a thinner, more refined design that maintains compatibility with existing bands. The faster S4 chip provides significantly improved performance, while key functional enhancements include 50% louder audio and a re-engineered digital crown. Health and safety are focal points of this model, introducing the first...Read more

    G
    grazia.it
    24/10/2018

    The Grazia review highlights the Apple Watch Series 4 as a significant design evolution, featuring a 30% larger, rounded OLED display that improves readability. Despite the larger screen, the device is thinner and more refined, maintaining a 'jewellery-like' aesthetic on the wrist. Performance is enhanced by the fast S4 64-bit processor, ensuring snappier interactions, faster app...Read more

    M
    medium.com
    13/01/2019

    In his review of the Apple Watch Series 4, Carlo Occhiena highlights the device as a significant leap forward in wearable technology, featuring a 30% larger display, a thinner profile, and the faster S4 64-bit processor. Key advantages include the high-resolution screen, enhanced usability, and advanced health features such as fall detection and an ECG reader. The review notes the...Read more

    S
    saggiamente.com
    06/11/2018

    Saggiamente describes the Apple Watch Series 4 as an engineering masterpiece, marking a transition from a gadget to a mature tool, highlighted by a 30% larger display, thinner design, and a new gold stainless steel finish. Key pros include the lightning-fast S4 processor, a significantly improved haptic digital crown, a louder speaker, and life-saving health features like Fall...Read more

    I
    iphoneitalia.com
    01/10/2018

    The Apple Watch Series 4 introduces a major redesign featuring 40mm and 44mm case sizes with roughly 30% more screen area, a thinner profile, and an edge-to-edge OLED display. Notable hardware pros include a ceramic back for improved reception and a digital crown with haptic feedback. Performance is significantly enhanced by the dual-core 64-bit S4 chip, which eliminates lag, while...Read more

    M
    macitynet.it
    26/09/2018

    The macitynet.it review describes the Apple Watch Series 4 as a major leap forward, highlighting the redesigned 40mm and 44mm casing with a 30% larger, nearly bezel-less display, which is thinner and more comfortable than the Series 3. While the screen improves readability, a noted drawback is that the edge-to-edge glass may be more vulnerable to impact. Powered by the 64-bit S4...Read more

    A
    andreagaleazzi.com
    27/09/2018

    2 sitesHere are top web results for exploring this topic:Andrea Galeazzi· APPLE WATCH 4 e una giornata SENZA...Con iPhone acceso e sotto copertura dati (sia essa WiFi o cellulare) ma distante da watch, sull'orologio arrivano le notifiche push, si può... Galaxy Note 系列 - Notebookcheck本页面提供关于Samsung Galaxy Note 系列笔记本电脑的评测和其他信息。

    I
    iculture.nl
    22/09/2018

    The Apple Watch Series 4 features a 30% larger display with thinner, rounded bezels, allowing for more data-rich watch faces like the Infograph. While this design is praised for aesthetics, the larger 40mm and 44mm cases may feel too big for some, and the base price has increased over the Series 3. Performance is significantly improved by the snappy dual-core S4 processor, alongside...Read more

    I
    iphoned.nl
    27/09/2018

    The Apple Watch Series 4 features a comprehensive redesign with 40mm/44mm cases, providing a 30% larger screen, thinner bezels, and the faster S4 64-bit dual-core processor. It introduces advanced health features including an FDA-cleared ECG app and fall detection, alongside a significantly louder speaker and a Digital Crown with haptic feedback. Despite these improvements, the...Read more

    I
    iculture.nl
    27/09/2018

    The Apple Watch Series 4 introduced a major redesign with a 30% larger display, rounded corners, and a thinner case, offering improved readability and a faster 64-bit S4 processor. Key upgrades include enhanced connectivity, a louder speaker, and a, haptic-enabled Digital Crown. Health and safety are prioritized through advanced features like an electrical heart sensor for ECG and...Read more

    Video reviews

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