Apple Watch Series 6 (44mm) vs (40mm) – Which Size is Right For You?

Just like the Apple Watch 5, the Apple Watch 6 comes in two sizes, 44mm and 40mm, each of these sizes also comes in two models; GPS and Cellular. The Cellular unit is a standalone smartwatch with more features and by extension more expensive. The Cellular unit comes with an e-SIM that enables cellular connectivity, this allows it to make and receive calls, and receive and reply to messages without your iPhone. Meanwhile, the GPS unit needs your iPhone to make and receive calls. Featured in this comparison is the Apple Watch Series 6 (44mm) vs (40mm) – Compare the design, features, price, and battery life of these two to find out the differences. Basically, both smartwatches have the same features except for the slight differences in sizes and battery life.

Apple Watch Series 6 (44mm) vs (40mm) Specifications Compared

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The Difference Between the 44mm vs 40mm

Apple Watch Series 6 44mm vs 40mm

As you can see from the table above, the 40mm and 44mm have the same features and appearance. Each of these two comes with a 32GB storage capacity and will also track your heart rate, calories, sleep, stress, blood oxygen, and steps.

Each of these two also has an inbuilt GPS that allows you to track your outdoor routes and locations without carrying your iPhone along.

The design is also the same, both sizes come in three materials, aluminum, stainless steel and titanium case materials, while the aluminum unit has an Ion-X glass screen, the stainless steel and titanium units have a sapphire glass screen. You get a digital rotating crown and a flat physical button in addition to a touch-sensitive screen for effortless navigation.

However, the difference between the 40mm and 44mm is as follows;

  1. The 44mm has a bigger display size than the 40mm unit. While the 40mm unit has a 1.57 inches display size, the 44mm unit has a 1.78 inches display size that allows you to see more at a glance.
  2. The 40mm being smaller is a more compact smartwatch than the 44mm unit. Although, both sizes are still very compact. In fact two of the most compact smartwatches.
  3. The prices are also different. The 40mm unit being smaller is cheaper than the 44mm unit.
  4. Although Apple didn’t specify the battery capacity of the Watch 6, the 44mm unit most likely has a bigger battery capacity than the 40mm unit. However, since the 44mm unit has a larger display size, it has about the same 18hrs battery life as the 40mm unit.

Apple Watch Series 6 GPS vs Cellular Features Compared

FEATURESWatch Series 3Watch Series 4Watch Series 5Watch SE (GPS)Watch SE (Cellular)Watch Series 6 (GPS)Watch Series 6
(Cellular)
DESIGN
Case Sizes38mm and 42mm44mm and 40mm44mm and 40mm44mm and 40mm44mm and 40mm44mm and 40mm44mm and 40mm
Thickness11.4mm thin10.7mm thin10.7mm thin10.4mm thin10.4mm thin10.4mm thin10.4mm thin
Always-on-displayNoNoYesNoNoYesYes
Digital crownDigital crown with haptic feedbackDigital crown with haptic feedbackDigital crown with haptic feedbackDigital crown with haptic feedbackDigital crown with haptic feedbackDigital crown with haptic feedback
Available Materials and FinishesAluminumAluminum
Stainless steel
Titanium
Aluminum
Stainless steel
Titanium
AluminumAluminumAluminum
Stainless steel
Titanium
Aluminum
Stainless steel
Titanium
Back MaterialComposite backCeramic and sapphire crystal backCeramic and sapphire crystal backCeramic and sapphire crystal backCeramic and sapphire crystal backCeramic and sapphire crystal backCeramic and sapphire crystal back
HEALTH AND ACTIVITY TRACKING
Family Setup
Allows you to use your iPhone to pair watches for your children or older adults who don’t have their own iPhone
NoYesYesNoYesNoYes
Noise Protection
Protects your ear against high decibels that can be harmful to hearing, also alerts you when you reach your hearing dose for the week according to recommendations from global health authorities.
NoYesYesYesYesYesYes
Blood Oxygen Tracking
Tracks your blood oxygen to determine the amount of oxygen your blood.
NoNoNoNoNoYesYes
ECG Tracking
Allows you to take ECG test directly from your wrist which can help you detect atrial fibrillations.
NoNoYesNoNoYesYes
Heart rate sensor
Tracks your heart rate with high, low, and irregular heart rhythm notifications.
Yes
Optical heart sensor
Yes
Second-generation optical heart sensor
Yes
Second-generation optical heart sensor
Yes
Second-generation optical heart sensor
Yes
Second-generation optical heart sensor
Yes
Second-generation optical heart sensor
Yes
Second-generation optical heart sensor
CompassNoNoYesYesYesYesYes
Incidental Fall Detection
Can help you get help real quick when the watch detects a fall, it calls a preset emergency number.
NoYesYesNoYesYes (phone must be nearby)Yes
International Emergency Calling
Allows you to call international emergency contacts almost anywhere in the world.
NoNoYesNoYesNoYes
AltimeterYesAlways-on altimeterAlways-on altimeterAlways-on altimeterAlways-on altimeterAlways-on altimeterAlways-on altimeter
AccelerometerYes
up to 16 g-forces
Yes
up to 32 g-forces
Yes
up to 32 g-forces
Yes
up to 32 g-forces
Yes
up to 32 g-forces
Yes
up to 32 g-forces
Yes
up to 32 g-forces
MEDIA/STORAGE
LoudspeakerYes50% Louder speaker50% Louder speaker50% Louder speaker50% Louder speaker50% Louder speaker50% Louder speaker
Storage16GB16GB32GB32GB32GB32GB32GB
Calls
Call and Text From Wrist
YesYesYesYesYesYesYes
Apple Pay
Make a secured payment from your watch.
YesYesYesYesYesYesYes
Siri
Get help with just about anything, simply by asking with your voice. Including translations.
YesYesYesYesYesYesYes
PLATFORM
CPUS3 with dual-core processorS5 with 64-bit dual-core processor
Up to 2x faster processor
S5 with 64-bit dual-core processor
Up to 2x faster processor
S5 with 64-bit dual-core processor
Up to 2x faster processor
S5 with 64-bit dual-core processor
Up to 2x faster processor
S6 SiP with 64-bit dual-core processor
Up to 20 percent faster than S5
S6 SiP with 64-bit dual-core processor
Up to 20 percent faster than S5
ChipW2
Apple wireless chip
W3
Apple wireless chip
W3
Apple wireless chip
W3
Apple wireless chip
W3
Apple wireless chip
W3
Apple wireless chip
W3
Apple wireless chip

Which is Size is Right For You?

Both sizes of the Watch 6 offer the same features except for the differences in dimension, display size and prices. Although the 44mm is bigger than the 40mm, both smartwatches are still very compact. The right choice for you depends on your wrist size which is what is intended here in the first place. The difference in size is to give consumers the option to choose their preferred size based on the wrist size of the individual.

The smaller 40mm unit is recommended for women and individuals with a slim wrist while the 44mm unit will make a better fit for individuals with a fat wrist and men.

Using a meter rule to measure the width of your wrist will help you reach a better conclusion.

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