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Samsung Galaxy Watch 4 Classic (42mm) vs (46mm) – Which Size is Right For You?

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The Galaxy Watch 4 Classic was released alongside the Galaxy Watch 4. These two succeed Galaxy Watch 3 and Galaxy Watch Active 2 respectively. These two also come in two sizes, 46mm and 42mm for Galaxy Watch 4 Classic and 44mm and 40mm for Galaxy Watch 4. The different sizes have the same features except for slight differences in sizes, weights, battery life, and price tag. Just like other brands, the reason Samsung released two different sizes of the same watch is to give their consumers options to choose the right size. The watches from Samsung run on the new Wear OS 3 out of the box, and as well feature body composition measurement, a higher 16GB storage, and a new 5nm W920 chip that boosts CPU and GPU performance. In this post, we’ll be comparing the differences between Samsung Galaxy Watch 4 Classic 46mm vs 42mm to help you make the right choice that fits your wrist.

Before we continue, please note that the 46mm and 42mm are available in Bluetooth and LTE models. The LTE model is priced higher than the Bluetooth model because it’s a standalone smartwatch that allows you to make and receive calls independent of a smartphone. Compare the Bluetooth vs the LTE model.

Samsung Galaxy Watch 4 Classic (42mm) vs (46mm) – Full Technical Specifications Comparison

Product Info

Samsung Galaxy Watch 4 Classic (42mm) (LTE) Full Specifications and Features

Samsung Galaxy Watch 4 Classic (46mm) (LTE) Full Specifications and Features

Price $288.97 $319.97
Device name Samsung Galaxy Watch 4 Classic Bluetooth (42mm) (LTE) (LTE), Samsung Galaxy Watch 4 Classic LTE (46mm)
Device type Standalone/Fitness smartwatch Standalone/Fitness smartwatch
Gender Unisex Unisex
Predecessor Samsung Galaxy Watch 3 Samsung Galaxy Watch 3
Successor Galaxy Watch 5 Pro Galaxy Watch 5 Pro
Models Bluetooth only, LTE Bluetooth only, LTE
Date released August, 2021 August, 2021
Display size 1.2 inches 1.4 inches
Display type Super AMOLED, Full color Super AMOLED, Full color
Resolution 396 x 396 pixels 450 x 450 pixels
Pixel density 466 PPI 455 PPI
Customizable watchface Yes Yes
Input type 2 Physical buttons, Physical rotating bezel, Touchscreen 2 Physical buttons, Physical rotating bezel, Touchscreen
Always-On Yes Yes
Shape Circular Circular
Case material Stainless steel Stainless steel
Strap material Fluoroelastomer Fluoroelastomer
Bezel material Stainless steel Stainless steel
Strap size (width), 20 mm 22 mm
Color Black, Silver Black, Silver
Screen protection Corning Gorilla Glass DX Corning Gorilla Glass DX
Dimension 41.5 x 41.5 x 11.2 mm 45.5 x 45.5 x 11.0 mm
Weight 47g (excluding straps) 52g
Waterproof rating Yes, 5ATM Yes, 5ATM
Swim-proof Yes, recommended Yes, recommended
Durability test MIL-STD-810G MIL-STD-810G
Bluetooth calling Yes Yes
Bluetooth Bluetooth v5.0 Bluetooth v5.0
Wi-Fi Wi-Fi 802.11 a/b/g/n (2.4+5GHz) Wi-Fi 802.11 a/b/g/n (2.4+5GHz)
NFC Yes Yes
RAM 1.5GB 1.5GB
Memory card slot No No
Network technology GSM / HSPA / LTE GSM / HSPA / LTE
SIM type e-SIM e-SIM
SMS alert Yes Yes
Calls alert Yes Yes
Email alert Yes Yes
Event reminder Yes Yes
Reply messages - -
Audio mp3/mp4 mp3/mp4
Microphone Yes Yes
Loudspeaker Yes Yes
Bluetooth music Yes Yes
Camera No No
Accelerometer Yes Yes
HRM Yes Yes
Gyroscope Yes Yes
Pulse Ox. Yes Yes
Altimeter Yes Yes
Barometer Yes Yes
Compass Yes Yes
ECG Yes Yes
Thermometer No No
Ambient light Yes Yes
Steps Yes Yes
Calories Yes Yes
Distance Yes Yes
Heart rate monitoring Yes Yes
Sleep tracking Yes Yes
Floors climbed Yes Yes
Blood oxygen Yes Yes
Blood Pressure Yes Yes
Stress Yes Yes
ECG tracking Yes Yes
Fall detection Yes Yes
Menstrual cycle Yes Yes
VO2 Max Yes Yes
Onscreen workout No No
Preloaded sport modes 90+ 90+
Battery type Non-removable Li-ion battery Non-removable Li-ion battery
Battery capacity 247mAh 361mAh
Battery life Regular: 1 Day+ Regular: 2 days, Standby :5 days+
Charging type WPC based wireless charging WPC based wireless charging
Charging duration 1-2 hours 1-2 hours
Solar power No No
Operating system Wear OS 3.5 Wear OS 3.5
Chipset Exynos W920 Exynos W920
CPU 1.18GHz Dual-core (Cortex-A55) 1.18GHz Dual-core (Cortex-A55)
GPU Mali-G68 MP2 Mali-G68 MP2
Companion app Samsung Wearable app Samsung Wearable app
Compatibility Android 6.0+ with 1.5GB+ RAM Android 6.0+ with 1.5GB+ RAM
Payment system Google Pay, Samsung Pay Google Pay, Samsung Pay
Customizable strap 20mm, Yes Yes
Voice Assistant Bixby, Google Assistant Bixby, Google Assistant
Find my phone Yes Yes
Box content Charger, Manual, Samsung Galaxy Watch 4 Classic, Straps Charger, Manual, Samsung Galaxy Watch 4 Classic, Straps
Price $288.97 $319.97

Samsung Galaxy Watch 4 (42mm) vs (46mm) – Design and Features Compared

Design & Display

One of the main differences between the 46mm and 42mm comes in the dimensions, weights, and display size. Although both sizes have the same design materials, shape, and appearance. The case of both sizes is made of stainless steel, and the physical rotating bezel is made of stainless steel. While the straps come in fluoroelastomer and thus can be changed with 22mm or 20mm for the 46mm and 42mm respectively.

The 46mm has a dimension of 45.5 x 45.5 x 11 mm and weighs 52 grams while the 42mm has a 41.5 x 41.5 x 11.2mm dimension and weighs just 47 grams. Going by these measurements, the 42mm size is more compact and also more comfortable to wear compared to the 46mm. Mind you, the 46mm is not bulky nor is it too heavy. It’s just that the 42mm is a more comfortable smartwatch to wear. As a result, the 42mm is recommended for individuals with thin wrists while the 46mm is recommended for men and individuals with fat wrists.

The display size is also different. While the 42mm has a 1.2 inches display size, the 46mm has a 1.4 inches display size that will allow you to see more at a glance. Both sizes are rated 5ATM which represents 50 meters waterproof rating. So, it’s safe to wear any of these two to the shower or perhaps to the pool.

Battery Life

The 46mm has a longer battery life

The 46mm has a longer battery life

The battery life of the 46mm and 42mm also differs as a result of the difference in battery capacity. The 46mm has a 361mAh battery capacity compared to the 247mAh battery capacity of the 42mm, this is just like older Galaxy smartwatches. As a result, the 46mm is expected to last up to 2 days, while the 42mm will last up to a day or more.
What this means is that if you intend to stay connected all day long or say wear any of these two to sleep, you will need to charge at least once a day to stay connected.


The prices between 46mm and 42mm are also different. The 42mm Bluetooth model costs $349.99, while the 46mm Bluetooth model costs $379.99. Like we mentioned earlier, the LTE models are priced higher than the Bluetooth models. The 42mm LTE model costs $399.99, while the 46mm LTE model costs $429.99.

Fitness Tracking

Like older Galaxy smartwatches, the Galaxy Watch 4 Classic is fitness-centered. Each of these two sizes has the same number of health and fitness tracking features. One notable feature is the addition of a Bioelectrical impedance analysis (BIA) sensor that can measure your body composition. This feature will allow you to measure your body composition such as your body fat, BMI, muscle mass, and body water. Other health and fitness tracking features include all the basics such as tracking your heart rate, sleep, stress, steps, calories, and distance covered.

Advance health tracking metrics like Spo2 blood oxygen monitoring is also available. So also is ECG and blood pressure monitoring that were introduced to Galaxy Watch 3. You will get access to 90 preloaded sport modes, menstrual cycle tracking, and handwashing reminder.

46mm or 42mm – Which Size is Right For You?

So now that you know the difference between the two sizes, which is right for you?
The 46mm is clearly a better smartwatch, it has a slightly longer battery life and it lets you see more at a glance. This explains why it’s priced higher, but is it the right choice for you?

It’s important to buy the right size for you otherwise it might look awkward on your wrist. To know which is the right size for you, simply use a tape or ruler to measure your wrist-ankle then compare it to the dimension of the Galaxy Watch 4 Classic 46mm or 42mm. In my case, my wrist measures 1.9 inches which are equivalent to 48.2mm. If you compare this to the 46mm which has a 45.5 x 45.5 x 11mm dimension, you can see that it’s very close and as a result, a better fit for me. You can follow the same process to find the right size for you.

In general, we recommend the smaller size for women and individuals with thin wrists and the bigger size for men and individuals with fat wrists. In this regard, the 42mm is more suitable for women, while the 46mm is more suitable for men.

Galaxy Watch 4 Classic Best Prices

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