The much talked about Samsung Galaxy Watch 3 has been announced yesterday in an online unpacked event. Samsung’s new watch is a beauty to behold. It’s slimmer, more compact, and weighs a little less than it’s predecessor. It also comes with more health tracking features such as incidental fall detection, blood oxygen tracking, VO2 max. and running coach. Remember the Galaxy Watch Active 2 which succeeded Galaxy Active, both feature digital rotating bezel, but the new Galaxy Watch 3 succeeds Galaxy Watch that was released in 2018 and brings back the iconic physical rotating bezel which is now smoother and slimmer and can be used to navigate the watch without touching the display. Galaxy Watch 3 is available in two sizes; 41mm and 45mm. This comparison post compares Samsung Galaxy Watch 41mm vs 45mm to find out all the differences, so you can make a perfect choice.
Table of Contents
Samsung Galaxy Watch 3 (41mm) vs (45mm) Full Specs Comparison
| Product Info |
 Samsung Galaxy Watch 3 (41mm) Full Smartwatch Specifications, Features and Price |
 Samsung Galaxy Watch 3 (45mm) Full Smartwatch Specifications, Features and Price |
|---|---|---|
| Price | $79.97 | $153.56 |
| ABOUT DEVICE | ABOUT DEVICE | ABOUT DEVICE |
| Device name | Samsung Galaxy Watch 3 (41mm) (Bluetooth) | Samsung Galaxy Watch 3 (45mm) (Bluetooth) |
| Device type | Fitness/Classic smartwatch | Fitness/Classic smartwatch |
| Gender | Women | Men |
| Release date | August, 2020 | August, 2020 |
| Predecessor | Samsung Galaxy Watch | Samsung Galaxy Watch |
| Successor | — | — |
| Versions | Bluetooth, LTE, Titanium | Bluetooth, LTE, Titanium |
| BODY | BODY | BODY |
| Dimension | 42.5 x 41 x 11.3 mm | 46.2 x 45 x 11.1 mm |
| Weight | 48.2g (excluding straps) | 53.8g (excluding straps) |
| Shape | Circular | Circular |
| Case material | Stainless steel | Stainless steel |
| Strap material | Leather | Leather |
| Bezel material | Stainless steel | Stainless steel |
| Strap size | 20 mm | 22 mm |
| Screen protection | Corning Gorilla glass DX+ | Corning Gorilla glass DX+ |
| Water resistance | Yes, 5ATM | Yes, 5ATM |
| Durability test | MIL-STD-810G | MIL-STD-810G |
| Swim-proof | Yes, recommended | Yes, recommended |
| Color | Mystic bronze, Mystic silver | Mystic black, Mystic silver |
| DISPLAY | DISPLAY | DISPLAY |
| Display size | 1.2 inches | 1.4 inches |
| Display type | Super AMOLED, Full color | Super AMOLED, Full color |
| Display resolution | 360 x 360 pixel | 360 x 360 pixel |
| Pixel density | 364 ppi | 364 ppi |
| Always on | Yes | Yes |
| Custom watch face | Yes | Yes |
| Input type | 2 Physical buttons, Physical rotating bezel, Touchscreen | 2 Physical buttons, Physical rotating bezel, Touchscreen |
| CONNECTIVITY | CONNECTIVITY | CONNECTIVITY |
| Bluetooth | Bluetooth v5.0 | Bluetooth v5.0 |
| Bluetooth calling | Yes | Yes |
| GPS | Galileo, Yes, GPS/GLONASS/BEIDOU | Galileo, Yes, GPS/GLONASS/BEIDOU |
| NFC | Yes | Yes |
| Wi-Fi | Yes, Wi-Fi 802.11 a/b/g/n/ac | Yes, Wi-Fi 802.11 a/b/g/n/ac |
| MEMORY | MEMORY | MEMORY |
| RAM | 1GB | 1GB |
| ROM | 8GB | 8GB |
| Memory card slot | No | No |
| CELLULAR CONNECTIVITY | CELLULAR CONNECTIVITY | CELLULAR CONNECTIVITY |
| Technology | None | None |
| SIM type | None | None |
| Band | — | — |
| NOTIFICATIONS | NOTIFICATIONS | NOTIFICATIONS |
| SMS alert | Yes | Yes |
| Calls alert | Yes | Yes |
| Email alert | Yes | Yes |
| Event reminder | Yes | Yes |
| Third-party apps alert | Yes | Yes |
| MEDIA | MEDIA | MEDIA |
| Audio | mp3/mp4 | mp3/mp4 |
| Bluetooth music | Yes | Yes |
| Loudspeaker | Yes | Yes |
| Microphone | Yes | Yes |
| Camera | No | No |
| Radio | No | No |
| SENSORS | SENSORS | SENSORS |
| Accelerometer | Yes | Yes |
| Altimeter | Yes | Yes |
| Ambient light | Yes | Yes |
| Barometer | Yes | Yes |
| Compass | No | — |
| ECG | Yes | Yes |
| Gyroscope | Yes | Yes |
| HRM | Yes | Yes |
| Pulse oximeter (SpO2) | Yes | Yes |
| Thermometer | No | No |
| Other sensors | — | — |
| ACTIVITY TRACKING | ACTIVITY TRACKING | ACTIVITY TRACKING |
| Blood oxygen | Yes | Yes |
| Blood Pressure | Yes | Yes |
| Calories | Yes | Yes |
| Distance | Yes | Yes |
| ECG tracking | Yes | Yes |
| Heart rate monitoring | Yes | Yes |
| Sleep tracking | Yes | Yes |
| Steps | Yes | Yes |
| Floors climbed | - | - |
| Stress | Yes | Yes |
| Incidental fall detection | Yes | Yes |
| Menstrual cycle | No | No |
| VO2 Max | Yes | Yes |
| Swim-tracking | Yes | Yes |
| Underwater heart rate tracking | — | — |
| On-screen workout | Yes | Yes |
| Sport modes | 40 | 40 |
| BATTERY | BATTERY | BATTERY |
| Battery type | Non-removable Li-ion battery | Non-removable Li-ion battery |
| Battery capacity | 247mAh | 340mAh |
| Battery life | Regular: 2 days | Regular: 2 days+ |
| Charging type | Charging dock, WPC based wireless charging | Charging dock, WPC based wireless charging |
| Charging time | 1-2 hours | 1-2 hours |
| Solar power | No | No |
| PLATFORM | PLATFORM | PLATFORM |
| Chipset | Exynos 9110 | Exynos 9110 |
| CPU | Dual core 1.15GHz | Dual core 1.15GHz |
| GPU | Mali™-T720 MP1 | Mali™-T720 MP1 |
| Operating system | Tizen 5.5 | Tizen 5.5 |
| MISC | MISC | MISC |
| Companion app | Samsung Health App | Samsung Health App |
| 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 |
| Interchangeable strap | 20mm, Yes | 22 mm, Yes |
| Voice command | Yes, Bixby | Yes, Bixby |
| Find my phone | Yes | Yes |
| Box content | Charger, Manual, Samsung Galaxy Watch 3, Straps | Charger, Manual, Samsung Galaxy Watch 3, Straps |
| Price | $79.97 | $153.56 |
Samsung Galaxy Watch 3 (41mm) vs (45mm) Differences Compared
| Samsung Galaxy Watch 3 (41mm) | Samsung Galaxy Watch 3 (45mm) | |
|---|---|---|
| Dimension | 42.5 x 41 x 11.3 mm | 46.2 x 45 x 11.1 mm |
| Display | 1.2 inches | 1.4 inches |
| Weight | 48.2g (41mm) | 53.8g (45mm) |
| Colors | Mystic bronze Mystic silver | Mystic black Mystic silver |
| Battery Capacity | 247mAh | 340mAh |
| Battery Life | ~2 Days | 2 Days |
| Price | $399 (Bluetooth) $430 (LTE) | $429 (Bluetooth) $480 (LTE) |
Both models of the Galaxy Watch 3 have the same features and body materials but differ in the case dimensions, battery capacity, display, colors, and price. The 41mm model has a smaller 1.2 inches display compared to 1.4 inches of 45mm. The 41mm model is also more compact and weighs a little less than 45mm.
While the 41mm model is available in mystic bronze and silver colors, 45mm is available in mystic black and mystic silver colors.
The 45mm model of Galaxy Watch 3 has a bigger 340mAh battery capacity compared to 247mAh of 41mm. Samsung claims the 45mm can last up to 2 days with mixed usage, and from experience with the Galaxy Watch where the 46mm has a longer battery life than 42mm due to ita larger battery capacity, the 45mm will definitely have a longer battery life than 41mm.
Prices of 45mm start at $430 for Bluetooth only model, and $480 for the LTE model, while the 41mm price starts at $399 for the Bluetooth model and $430 for the LTE model.
There’s also a titanium model of the Galaxy Watch which is priced higher and weighs less than both the stainless steel edition of the 45mm and 41mm.
Which Should You Buy?
These two offer the same features, the better choice for you will depend on your wrist size. The 41mm model will make a perfect fit for women while the 45mm will be a perfect choice for men and those with fatter wrists.
Samsung Galaxy Watch 3 Features
- 1.4/1.2 inches always-on AMOLED display with touchscreen support, 2 physical buttons and physical rotating bezel.
- 5ATM (50 meters) Swim-proof, eject water from the loudspeaker after immersion in water.
- Over 50000 custom watch faces to choose from.
- Rugged smartwatch with MIL-STD-810G- US military grade rating for shock.
- 1GB RAM and 8GB storage capacity with support for streaming on Spotify.
- Has microphone and loudspeaker.
- Use Bixby voice assistant to perform simple tasks and control smartthings devices with your voice.
- Contactless payment on the go with Samsung pay.
- Make calls with Bluetooth connection to your phone.
- LTE model is a standalone smartwatches that allows you make and receive calls from the watch independent of your phone.
- Keeps you connected to all that matters to you like email, SMS, reminders, weather forecast, unlock phone, music playback on phone, remote camera control and notifications from third-party apps are beamed to your watch.
- NEW Chat with image and chat history, as well as chat with emoji
- NEW Smart reply analyses your messages and texts to recommend replies.
Samsung Galaxy Watch 3 Fitness Tracking Features
- Continously tracks your steps, calories, distance and floors climbed.
- Comprehensively tracks your sleep in for stages; light, deep, awake and REM.
- Comprehensively tracks your heart rate continuously.
- Tracks your stress and helps you manage stress via guided breathing sessions.
- ECG tracking monitors irregular heart rhythms and can help you detect atrial fibrillations. Cleared by FDA
- Blood pressure monitoring.
- Up to 40 preset workout modes and can auto track 7 of these.
- Blood oxygen saturation monitoring with SpO2 sensors. NEW
- Incidental fall detection will call emergency contacts when the Galaxy Watch 3 detects a fall. NEW
- Tracks your fitness level to show your VO2 Max. NEW
- Features 120 workout home videos that allows you cast workout videos to yout TV and can display your tracked metrics on the TV as you train. NEW
