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The Samsung Galaxy Watch is one of the best smartwatches you can find on the market, obviously for many good reasons which include it’s durable and outstanding design, very interesting features, and long battery life. This watch comes in two sizes; 46mm and 42mm. Each of these two sizes is available in Bluetooth only and LTE models. There are not many differences between these two except for the sizes, prices, and battery capacity. Compare the Galaxy Watch 46mm vs 42mm to find out the differences and which is a better choice for you.

Samsung Galaxy Watch 46mm vs 42mm: Specs Comparison

  Samsung Galaxy Watch (46mm) (LTE) Samsung Galaxy Watch (42mm) (LTE)
Samsung galaxy watch specs


Device name Samsung Galaxy Watch (46mm) Samsung Galaxy Watch (42mm)
Device type Classic/Fitness/Standalone smartwatch Classic/Fitness/Standalone smartwatch
Predecessor Samsung Gear S3 Samsung Gear S3
Successor N/A N/A
Date Released August, 2018 August, 2018
Gender Men Women



Display size 1.3 inch 1.2 inch
Display type Super AMOLED
Full color
Full color
Display resolution 360 x 360 pixels 360 x 360 pixels
Pixel density 278 ppi 278 ppi
Display always-on Yes Yes
Input type Touchscreen,
2 physical buttons
physical rotating bezel
2 physical buttons
physical rotating bezel


Shape Circular Circular
Casing material Stainless steel/glass reinforced with polycarbonate Stainless steel/glass reinforced with polycarbonate
Strap material Silicone
(leather straps also available)
(leather straps also available)
Bezel Material Ceramics Ceramics
Weight 63 grams 49 grams
Color(s) Black and silver Midnight-black and Rose-gold
Dimension 46 x 49 x 13 mm 41.9 x 45.7 x 12.7 mm
Strap size 22 mm 20 mm
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 1.5GB (LTE) 1.5GB (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 v4.2 Bluetooth v4.2
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 GSM/HSPA/LTE GSM/HSPA/LTE
SIM Yes, e-SIM Yes, e-SIM


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 No No
ECG Tracking No No
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


Accelerometer Yes Yes
Gyroscope Yes Yes
Heart rate sensor Yes Yes
Barometer Yes Yes
Compass No No
Pulse Ox. No No
Altimeter -- --
Thermometer No No
Ambient light Yes Yes


Interchangeable straps Yes, 22mm 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 472mAh 270mAh (42mm)
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 (46mm) Samsung Galaxy Watch (42mm)
Straps Straps
Charging dock Charging dock
Quick start guide Quick start guide

As you can see, the 46mm model is more compact than the 42mm model. This also results in the higher weight of the 46mm model, but you can see a little more at a glance on the 46mm’s 1.3 inches display. You can get the 46mm in black or silver, while the 42mm is available in rose-gold and midnight-black color. You’ll have to spend a little more to get the 46nm model.

The battery capacity of these two also differs, the 46mm model has a bigger 472mAh battery capacity than 270mAh of the 42mm model. This of course, despite the 46mm having a bigger display that requires more battery last longer than the 42mm. The video below confirms that the 46mm model has about 4 days long battery life compared to the 2 days of the 42mm.

Which is Better?

I can’t really say which is better between these two watches, the features and design are the same except for differences in sizes and battery life. It all depends on your wrist size. The 46mm which is a bit bulky looks cool on men, while the 42mm looks awesome on women especially the rose-gold color version. Personally, I really like the 46mm model, it looks bold and rugged.

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