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The Galaxy Watch Active 2 is one of the best smartwatches you can right now if you’re a lover of wearable tech. This watch comes in two sizes; 44mm and 40mm and both are available in LTE and Bluetooth only models. However, in this post, I compare the Bluetooth only models of the Galaxy Watch Active 2 44mm vs 40mm so you know the differences and which you should buy.

There are so many reasons that make the Galaxy Active 2 one of the best on the market. First, it features Samsung’s most advanced wearable technology which includes the newly added blood pleasure monitoring which has just been cleared by South Korea Ministry of Food and Drug Safety. Beyond that, the Active 2 also features Youtube and Twitter as well as onboard storage, microphone, loudspeaker, and more.

Samsung Galaxy Watch Active 2 44mm vs 40mm – Specifications Compared

  Samsung Galaxy Watch Active 2 (44mm) (bluetooth only) Samsung Galaxy Watch Active 2 (40mm) (Bluetooth only)


Device name Samsung Galaxy Watch Active 2 (44mm) (Bluetooth only) Samsung Galaxy Watch Active 2 (40mm) (Bluetooth only)
Device type Classic/Fitness smartwatch Classic/Fitness smartwatch
Predecessor Samsung Galaxy Watch Active Samsung Galaxy Watch Active
Successor N/A N/A
Date Released September, 2019 September, 2019
Gender Unisex Unisex



Display size 1.4 inches (44mm) 1.2 inches (40mm)
Display type Super AMOLED
Full color
Full color
Display resolution 360 x 360 pixels 360 x 360 pixels
Pixel density -- --
Display always-on Yes Yes
Input type Touchscreen,
2 physical buttons
Digital rotating bezel
2 physical buttons
Digital rotating bezel


Shape Circular Circular
Casing material Aluminum Aluminum
Strap material Fluoroelastomer
Bezel Material Glass Glass
Weight 30 grams
(aluminum, without straps)
26 grams
(aluminum, without straps)
Color(s) Cloud-silver
Cloud-silver, aqua-black,
Dimension 44 x 44 x 10.9mm (44mm) 40 x 40 x 10.9mm (40mm)
Strap size 20mm 20mm
Screen protection Corning Gorilla glass DX+ Corning Gorilla glass DX+
Durability test MIL-STD-810G MIL-STD-810G
Waterproof rating Yes, IP68, 5ATM
Yes, IP68, 5ATM


Time/Date Yes Yes
Alarm Yes Yes
Stopwatch Yes Yes


RAM 0.75GB non-LTE 0.75GB non-LTE
Internal storage 4GB 4GB
Memory card slot No No


Audio mp3/mp4 mp3/mp4
Microphone Yes Yes
Loudspeaker Yes Yes
Camera No No
Music streaming Yes Yes


Bluetooth Bluetooth smart v5.0 LE Bluetooth smart v5.0 LE
NFC Yes Yes
Wi-Fi Yes Yes
Bluetooth calling Yes Yes


Calls alert Yes Yes
SMS alert Yes Yes
Email alert Yes Yes
Reminder Yes Yes


Network Technology No No
SIM No __


Steps Yes Yes
Distance Yes Yes
Calories Yes Yes
Floors climbed Yes Yes
Sleep tracking Yes Yes
Heart rate monitoring Yes Yes
VO2 Max. Yes Yes
Stress Yes Yes
Swim tracking Yes Yes
Menstrual cycle tracking No No
Blood pressure Yes Yes
ECG Tracking Yes Yes
Blood oxygen No No
Preloaded sport modes Yes Yes


Operating system Tizen OS 4.0 Tizen OS 4.0
CPU Dual core 1.15GHz Dual core 1.15GHz
GPU -- --
Chipset Exynos 9110 Exynos 9110


GPS GPS/Glonass/Beidou/Galileo GPS/Glonass/Beidou/Galileo
Accelerometer Yes Yes
Gyroscope Yes Yes
Heart rate sensor Yes Yes
Barometer Yes Yes
Compass No No
Pulse Ox. No No
Altimeter -- --
ECG Yes Yes
Thermometer No No
Ambient light Yes Yes


Interchangeable straps Yes, 20mm Yes, 20mm
Custom watch face Yes Yes
Voice Assistant Yes Yes
Compatibility Android 5.0+ & RAM 1.5GB+
iPhone 5+ and iOS 9.0+
Android 5.0+ & RAM 1.5GB+
iPhone 5+ and iOS 9.0+
Payment system Samsung pay Samsung pay
Companion app Samsung Gear app Samsung Gear app


Battery type Non-removable Li-ion battery Non-removable Li-ion battery
Battery capacity 340mAh 247mAh (40mm)
Est. battery life Standby :5 days+,
Mixed usage: 2 days+
Standby :5 days+,
Mixed usage: 2 days+
Charging mode WPC based wireless charging WPC based wireless charging
Charging duration About 1-2 hours About 1-2 hours


Samsung Galaxy Watch Active 2 Samsung Galaxy Watch Active 2 (40mm)
Small and large straps Small and large straps
Wireless charger Wireless charger
Quick start guide Quick start guide

Difference Between Galaxy Watch 44mm and 40mm

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The main difference between the Active 44mm and 40mm comes in the different sizes which include the display and case size. This subsequently leads to a difference in weight. The battery capacity is also different, but the battery life is about the same when you take into consideration the larger display of the 44mm model.

Besides these minute differences, the 40mm can do everything the 44mm model can do. Thus, making a choice will depend on your wrist size, the 40mm is recommended for women and those with a small wrist, while the 44mm is recommended for men and those with a fatter wrist.

Samsung Galaxy Watch Active 2 44mm/40mm Features

The Active 2 is Samsung’s most advanced wearable right now, and as expected comes with many features that include basics and advanced features. Features of the Galaxy Watch Active 2 includes;

  • The basics, the Active 2 tells the time, date, weather and other complications on the display.
  • You can choose from the many preloaded watch faces or use the MyStyle App to create a watch face that matches your outfit.
  • It comes with 4GB storage capacity that’ll allow you to store your files on the watch which can include music, videos, and other files. You can also stream music directly from the watch through Spotify.
  • You can watch YouTube videos and also access Twitter on the Active 2.
  • It’s equipped with the iconic digital rotating bezel that makes navigating the device very easy.
  • Google translate is available on Active 2 which comes handy when you find yourself in a country with a different language.
  • It’ll keep you notified when there’s a new notification on your phone.
  • You can make calls from the Active 2 Bluetooth only model by connecting to your phone Bluetooth.
  • The LTE version which is a standalone smartwatch will allow you to make and receive calls directly from the watch without connecting to your phone.
  • There is also an NFC chip that enables Samsung Pay which will allow you to make a payment on the go from the watch.
  • The Active 2 will track your basic activities which includes heart rate, distance, sleep and steps.
  • To more advance activity tracking features like stress management, calories, blood pressure and blood oxygen (newly added), as well as outdoor activity tracking enabled by the inbuilt GPS./li>
  • You can choose from the over 69 preloaded sport modes or create custom workouts.

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