Apple Watch Series 4

The Apple Watch Series 4 is a smartwatch that was designed, manufactured, and sold by Apple from 2018 to 2019 as part of the Apple Watch series. The Watch Series 4 has been introduced on 12 September 2018 and its price started at $399. All-New Watch comes in two new sizes 40 mm and 44 mm and has been made in 6 different finishes including Aluminum (Silver, Space Gray, Gold), and Stainless Steel (Silver, Space Black, Gold). Every Watch was shipped with a paired band. The device features a 1.57-inch or 1.78-inch LTPO OLED Retina Displays with Force Touch covered by Ion-X glass or Sapphire crystal, Dual-Core Apple S4 processor, 1GB of RAM, Apple W3 chip, 16 GB of flash memory, Taptic Engine, Digital Crown, NFC for Apple Pay, GPS, Bluetooth 5.0, ambient light sensor, ECG based on electrical heart sensor, heart rate sensor, accelerometer, a gyroscope, water-resistance up to 50 meters, wireless charging, and additional Cellular model. The product has been discontinued on 10 September 2019 and has been replaced by Apple Watch Series 5.

The Apple Watch Series 4 features the Apple S4 dual-core processor, which Apple claims can deliver double the S3’s performance. It also features 16GB of storage, a larger display compared to the Series 3, and a new electrical heart sensor that measures the potential difference between the wrist and a finger from the opposing hand into the S4 Module over 30 seconds. The ECG system has received clearance from the United States Food and Drug Administration, a first-ever for a consumer device, and is supported by the American Heart Association. This device can also detect falls and will automatically contact emergency services unless the user cancels the outgoing call. The microphone was moved to the opposite side between the side button and the digital crown to improve call quality. Other changes include the digital crown incorporating haptic feedback with the Apple Haptic Engine and includes the new Apple-designed W3 wireless chip.

Today Apple Watch Series 4 is 2 years old!

Apple Watch Series 4 – General information

Overview

Introduced12 September 2018
Shipped21 September 2018
Discontinued10 September 2019
Model IdentifierWatch4,1 (40 mm GPS)
Watch4,2 (44 mm GPS)
Watch4,3 (40 mm GPS + Cellular)
Watch4,4 (44 mm GPS + Cellular)
Model NumberA1977 (40 mm GPS)
A1978 (44 mm GPS)
A1975 (40 mm GPS + Cellular)
A2007 (40 mm GPS + Cellular)
A1976 (44 mm GPS + Cellular)
A2008 (44 mm GPS + Cellular)
EMC3225 (40 mm GPS)
3229 (44 mm GPS)
3227 (40 mm GPS + Cellular)
3228 (44 mm GPS + Cellular)
Order Number40 mm Aluminum GPS
MU642LL/A, MU652LL/A, MU682LL/A, MU692LL/A, MU662LL/A, MU672LL/A

44 mm Aluminum GPS
MU6A2LL/A, MU6C2LL/A, MU6F2LL/A, MU6G2LL/A, MU6D2LL/A, MU6E2LL/A

40 mm Aluminum GPS + Cellular
MTUD2LL/A, MTUF2LL/A, MTUJ2LL/A, MTUK2LL/A, MTUG2LL/A, MTUH2LL/A, MTUL2LL/A, MTUM2LL/A, MTUR2LL/A, MTUT2LL/A, MTUN2LL/A, MTUQ2LL/A, MTUU2LL/A, MTUV2LL/A, MTV02LL/A, MTV12LL/A, MTUW2LL/A, MTUX2LL/A, MTV22LL/A, MTV42LL/A, MTV72LL/A, MTV82LL/A, MTV52LL/A, MTV62LL/A

44 mm Aluminum GPS + Cellular
MTUU2LL/A, MTUV2LL/A, MTV02LL/A, MTV12LL/A, MTUW2LL/A, MTUX2LL/A, MTV22LL/A, MTV42LL/A, MTV72LL/A, MTV82LL/A, MTV52LL/A, MTV62LL/A, MTVR2B/A, MTVT2B/A, MTVW2B/A, MTVX2B/A, MTVU2B/A, MTVV2B/A, MTX02B/A, MTX12B/A, MTX42B/A, MTX52B/A, MTX22B/A, MTX32B/A

40 mm Nike+ GPS
MU6H2LL/A, MU7F2LL/A, MU6J2LL/A, MU7G2LL/A

44 mm Nike+ GPS
MU6K2LL/A, MU7H2LL/A, MU6L2LL/A, MU7J2LL/A

40 mm Nike+ GPS + Cellular
MTV92LL/A, MTX72LL/A, MTX82LL/A, MTX92LL/A, MTX62B/A, MTXF2B/A, MTXG2B/A, MTXH2B/A

44 mm Nike+ GPS + Cellular
MTXC2LL/A, MTXA2LL/A, MTXE2LL/A, MTXD2LL/A, MTXK2B/A, MTXJ2B/A, MTXM2B/A, MTXL2B/A

40 mm Hermes GPS + Cellular
MU6N2LL/A, MU6M2LL/A, MU7K2LL/A, MU6R2LL/A, MU6Q2LL/A, MU6P2LL/A, MU702B/A, MU6Y2B/A, MU7L2B/A, MU732B/A, MU722B/A, MU712B/A

44 mm Hermes GPS + Cellular
MU6X2LL/A, MU6W2LL/A, MU6V2LL/A, MU9D2LL/A, MU6T2LL/A, MU6U2LL/A, MU782B/A, MU772B/A, MU762B/A, MU9E2B/A, MU752B/A, MU742B/A
Price$399 (40 mm Aluminium GPS)
$499 (40 mm Aluminium GPS + Cellular)
$429 (44 mm Aluminium GPS)
$529 (44 mm Aluminium GPS + Cellular)
$699$799 (40 mm Stainless Steel GPS + Cellular)
$749$849 (44 mm Stainless Steel GPS + Cellular)
ColorsAluminum (Silver, Space Gray, Gold)
Stainless Steel (Silver, Space Black, Gold)
CaseAluminum
Stainless Steel
Weight1.05 – 1.41 oz. – 30 – 40 Gram (40 mm)

1.26 – 1.68 oz. – 36 – 48 Gram (44 mm)
Dimensions1.57” H x 1.34” W x 0.42″ D (40 mm)
40 mm H x 34 mm W x 10.7 mm D (40 mm)

1.73” H x 1.5” W x 0.42″ D (44 mm)
44 mm H x 38 mm W x 10.7 mm D (44 mm)

Hardware

Processor

ProcessorApple S4
Apple W3
Processor SpeedUnknown
Architecture32-bit
Number of Cores2
Memory1 GB DRAM

Storage

Storage16 GB

Display

Display MaterialsIon-X glass (Aluminum)
Sapphire crystal (Stainless Steel)
Display1.57″ LTPO OLED Retina Multi-touch Display (40 mm)
1.78″ LTPO OLED Retina Multi-touch Display (44 mm)
Display Size759 mm2 (40 mm)
977 mm2 (44 mm)
Resolutions324 x 394 (40 mm)
368 x 448 (44 mm)
Brightness1000 cd/m2
Pixel Density326 ppi

Input

Input MethodDigital Crown
Multi-Touch
Force Touch
Digital Touch
Side Button

Sensors

SensorsAmbient light sensor
Electrical heart sensor (ECG)
Heart rate sensor
Accelerometer
Barometric altimeter
Gyroscope
Tactile FeedbackTaptic Engine

Connections

Wi-Fi802.11b/g/n 2.4 GHz
Networks*LTE and UMTS
SIM Slot*None – Built-in Apple SIM (eSIM)
NFCNFC for Apple Pay
FeliCa
LocationGPS
GLONASS
QZSS
Galileo
BluetoothBluetooth 5.0
Audio In1 – Microphone
Audio Out1 – Speaker
*GPS + Cellular version only

Software

Original OSwatchOS 5.0
Maximum OSwatchOS 7.2
System RequirementsiPhone 5s or later (GPS)
iPhone 6 or later (GPS + Cellular)
Intelligent AssistantSiri

Power

BatteryBuilt-in rechargeable Lithium Polymer
Battery Capacity225 mAh (40 mm)
292 mAh (44 mm)
Battery LifeUp to 18 hours
PowerApple 5 W or 12 W Power adapter

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Source: Wikipedia, Pinterest, Apple

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