apple watch series 4 vs apple watch series 3

Apple Watch Series 4 vs Series 3- What’s New No ratings yet.

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The Apple watch series 4 is here with so many upgrades and additional features. We pitch it head-to-head with its predecessor, the series 3 what are the latest additions, is an upgrade really necessary and is it really worth your money. We looking at what sets the series 4 apart from the series 3.

Apple watch series 4 vs Apple watch series 3 Compared

 Apple Watch Series 4 Apple Watch Series 3


4.5 out of 5 stars (4.5 / 5)
3.5 out of 5 stars (3.5 / 5)
Fitness tracking:
4.5 out of 5 stars (4.5 / 5)
4.5 out of 5 stars (4.5 / 5)
4 out of 5 stars (4.0 / 5)
4.2 out of 5 stars (4.2 / 5)

4.5 out of 5 stars (4.5 / 5)
3.5 out of 5 stars (3.5 / 5)
Fitness tracking:
4.5 out of 5 stars (4.5 / 5)
4 out of 5 stars (4.0 / 5)
3.5 out of 5 stars (3.5 / 5)
4 out of 5 stars (4.0 / 5)


<strong>BUY AT AMAZON</strong> BUY AT AMAZON<strong>BUY AT AMAZON</strong> BUY AT AMAZON


Device nameApple Watch Series 4Apple Watch Series 3
Device typeClassic/sporty smartwatchClassic/sporty smartwatch
PredessesorApple watch series 3Apple watch series 2
Released dateSeptember, 2018September, 2017
Ideal forMen 44mm, while the 40mm version will look great on womenMen 42mm, while the 38mm version will look great on women


Display size1.78 inches1.65 inches
Screen resolution448 x 368 pixels(44mm)
324 x 394 pixels (40mm)
390 x 312 pixels
Density326 ppi303 ppi
Input typeTouchscreen,
a button and a digital crown
a button and a digital crown


Dimension44 x 38 x 10.7 mm42.5 x 36.4 x 11.4 mm
Weight48 grams , 10.7mm thick52.8 grams , 11.4mm thick
Casing materialStainless steel frame and all ceramic and sapphire crystal backStainless steel frame and composite back
Strap/band materialElastomerElastomer
Bezel Material
Band size125 - 210mm125 - 210mm
Screen protectionSapphire crystal glassSapphire crystal glass
Water resistantYes, IP68, 5ATMYes, IP68, 5ATM
Color(s)Black, silver goldBlack, silver gold


Internal storage16 GB8 GB
Memory card slot----


BluetoothBluetooth v5.0Bluetooth v4.2
Wi-FiYes, Wi-Fi
802.11b/g/n 2.4GHz
Yes, Wi-Fi
802.11b/g/n 2.4GHz


SIM slotYes, electronic SIMYes, electronic SIM


Email alertYesYes
SMS alertYesYes
Calls alertYesYes
Event reminderYesYes
Weather forecastYesYes
Facebook notifacationYesYes
Twitter notificationYesYes
Whatsapp notificationYesYes


Sleep trackingYesYes
Heart rate monitoringYesYes
Distance coveredYesYes
Steps climbedYesYes
Calories burntYesYes
Calories ConsumptionYesYes


Bluetooth musicYesYes


Accelerometer YesYes
Magnetometer ----
Heart rate monitor (HRM)Yes, + ECG sensorYes
Gyroscope YesYes
Ambient lightYesYes


Operating system (OS)WatchOS 5.0WatchOS 4.0 upgradeable to 5.0
ChipsetApple S4, 64bitApple S3
CPUDual coreDual core


Type of batteryNon-removable Li-ionNon-removable Li-ion
Battery capacity --279mAh
Battery lifeStandby :2 days + , Mixed usage: ~1 dayStandby :2 days + , Mixed usage: 18 hours
ChargingMagnetic charging cableMagnetic charging cable
Charging timeAbout 2 hoursAbout 2 hours


Payment systemApple payApple pay
Compatibility iPhone 5s or later with iOS 12 or lateriPhone 5s or later with iOS 11 or later
Companion appApple watch appApple watch app
Customizable watch faceYesYes
Interchangeable band YesYes
Voice commandYesYes


Apple watch series 4Apple watch series 3
Magnetic charging cable Magnetic charging cable
USB adapter--
User manualUser manual

What are The Differences?

Features compared
  1. Design
  2. The differences between the series 4 and 3 comes majorly in the design plus additional and improved sensors. No doubt the series 4 has a more appealing , elegant and beast like design which commands respect and class. The case material are almost the same except that the series 4 has a more durable all ceramics and sapphire crystal back while the series 3 has a composite back(center).

    The series 4 has fine finishes and extended curved areas which makes the screen size bigger with 1.78 inches while the series 3 is 1.68 inches. So obviously you see more at a glance with the series 4.

    The series 4 and 3 both comes with OLED retina display that features a bright and high quality display, but the series 4 comes with additional LTPO technology which the company says will improve battery efficiency which will let you go longer on a single charge.

    Its worthy to note that the series 4 weighs far less than the series 3, despite the fact that the later is bigger, has more features. The series 4 is surprisingly thinner with 10.7mm thickness size while the series 3 is 11.4mm thick.

    In previous versions of the Apple watch series, they always come in 42mm and 38mm case sizes respectively, but that has been abandoned as the new series 4 comes in a bigger 44mm and 40mm case sizes respectively due to the increased size.

    The digital crown found in the series 3 is also here in the series 4, but this time with heptic feedback which delivers a precise click-like feel as you scroll.

  3. Platform and Connectivity
  4. The new Apple watch series 4 runs on Apple watch OS version 5.0 while the series 3 runs on version 4.0 but its upgradable to version 5.0. Secondly the series 4 is powered by a stronger S4 dual core processor with W3 Apple wireless chip which the company says is 2x faster than the S3 dual core processor and W2 in the series 3.

    Beside this ,the series 4 comes with a newer version of Bluetooth v5.0 compared to the v4.2 both LE found in the series 3 which means a more faster connectivity on the series 4.

  5. Media
  6. With the series 3 we had 8GB storage space while in the series 4 it is 2x, 16GB storage space, quiet massive. With this you can store all your favorite tracks, videos and other files. The RAM size of the series 4 is not yet confirmed, but we stipulate that it won’t be lower than the 768MB RAM size that obviously powers the series 3.

  7. Sensors
  8. The Apple watch series 4 has a new ECG sensor that lets you take ECG reading simply by pressing the digital crown for about 30 seconds, it then stores the recoded ECG report in the Health app which you can download as PDF and share with your doctor

    Beside this , you will find every other sensor on the series 3 on the series 4, but with the series 4 there is an improved accelerometer, gyroscope, second generation heart rate sensor all upgraded and obviously more smarter and accurate stats from your fitness activities.

    The accelerometer is capable of detecting accidental falls the watch will display a message that makes it easy to call emergency services, however if you are unresponsive for about 60 seconds the device will make a call and also sends a message to your designated emergency contact. This feature is set by default for older people 65 years and above while it can be enabled manually for ages lower than 65.

    The new second generation optical heart rate sensor is also capable of detecting irregular heart rhythms such as unusual low heart rate and warn you about it. This feature and like that of the ECG will come in a later software update on the series 4.

  9. Battery
  10. There is no much difference on the battery life, its still same li-ion battery type, couldn’t find the capacity, but Apple says that on average you should expect about 18 hours battery life on the series 4 just same as series 3, but with the minute detailed advancement in technology that comes with the series 4 perhaps you should expect additional 1-4 hours extended battery life.

  11. Price
  12. Obviously the price of the Apple watch series 4 will be more than the series 3. Though the discrepancy won’t be much. The aluminum casing are cheaper than the stainless steel casing ranging from $300 to $400, while the aluminum or stainless steel versions with cellular functionality are more costlier and the price ranges from about $500 to $700 respectively.

At a Glance Apple Series 4 vs Series 3

 Apple Watch Series 4 Apple Watch Series 3


1.78 inches1.65 inches
448 x 368 pixels390 x 312 pixels
326 ppi303 ppi
44 x 38 x 10.7 mm42.5 x 36.4 x 11.4 mm
48 grams , 10.7mm thick52.8 grams , 11.4mm thick
Stainless steel frame and all ceramic and sapphire crystal backStainless steel frame and composite back (center)


Internal storage16 GB8 GB


BluetoothBluetooth v5.0Bluetooth v4.2


Accidental fall detectionNo
ECG heart rate checkNo


Improved accelerometer Accelerometer
ECG sensorNo
Improved gyroscopeNo
Second generation optical heart sensorOptical heart sensor
Operating system (OS)WatchOS 5.0WatchOS 4.0 upgradeable to 5.0
Apple S4, 64bitApple S3


Not known yet279mAh
Standby :2 days + , Mixed usage: ~1 dayStandby :2 days + , Mixed usage: 18 hours
Magnetic charging cable + USB cableMagnetic charging cable


$300 - $850About $300

Our Recommendations

We think the features built into the series 4 is quiet massive, it is a great smartwatch same as the series 3, but it is more comprehensive and will definitely be more fulfilling. Perhaps you might already own a series 3 and wondering if you should get the series 4, well it all depends on your preference and lifestyle. If you want a more classic smartwatch and smarter fitness tracker then an upgrade is the way to go otherwise continue to flex your series 3.

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