Samsung Smartwatch
Galaxy Watch 7
- Display
- AMOLED · 1.3 in
- Battery
- —
- GPS
- Built-in
- Water
- 5 ATM
Samsung
Samsung Galaxy Watch4
- Works with
- Android only
- Display
- AMOLED, 1.4 in
- Case sizes
- 40 / 44 mm
- Water resistance
- 5 ATM
- Weight
- 30.3 g
- Cellular
- LTE version
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Find it in these categories
Samsung Galaxy Watch4 at a glance
-
GPS
Built-in GPS
No maps. Runs and rides without your phone.
-
Display
AMOLED, 1.4 in
1.4 in, always-on option and touchscreen.
-
Health
ECG on the wrist
Measures ECG, blood pressure and blood oxygen.
-
Phone & smart
Android only
LTE, payments, music and calls.
-
Build
5 ATM water rating
30.3 g. 2 case sizes. MIL-STD-810.
Samsung Galaxy Watch4 full specifications
Overview
A smartwatch from Samsung, released in 2021.
| Brand | Samsung |
|---|---|
| Model | Galaxy Watch4 |
| Series | Galaxy Watch |
| Released | 2021-08-11 |
| Versions | 40mm, 44mm |
| Colours | Black, Green, Silver |
Platform & apps
Needs an Android phone, running Wear OS.
It has an app store for extra apps and watch faces.
| Operating system | Wear OS |
|---|---|
| Works with | Android only |
| Minimum Android | Android 6 |
| Chipset | Exynos W920 Dual Core 1.18GHz (5nm Processor) |
| RAM | 1,500 MB |
| Storage | 16 GB |
| App store | Yes |
Display
A vivid, high-contrast screen that is easy to read indoors and out.
1.4 in, always-on option and touchscreen.
| Display type | AMOLED |
|---|---|
| Display name | Super AMOLED |
| Screen size | 1.4 in |
| Resolution | 450 x 450 |
| Pixel density | 455 ppi |
| Colour display | Yes |
| Always-on display | Yes |
| Touchscreen | Yes |
| Controls | touchscreen |
Design & durability
Comes in 2 case sizes (40, 44 mm) weighing 30.3 g.
Rated 5 ATM: fine for swimming laps and showers. Tested to MIL-STD-810 for shock, heat and cold.
| Case sizes | 40 / 44 mm |
|---|---|
| Case shape | Round |
| Dimensions | 44.4 x 43.3 x 9.8 mm |
| Thickness | 9.8 mm |
| Weight (case) | 30.3 g |
| Case material | Aluminum |
| Lens | Corning Gorilla Glass with DX+ |
| Band material | Fluoroelastomer |
| Water resistance | 5 ATM |
| IP rating | IP68 |
| MIL-STD-810 tested | Yes |
Battery
| All battery modes | Battery saver: 40 hours |
|---|---|
| Battery capacity | 361 mAh |
| Charging | wireless |
| Wireless charging | Yes |
| Fast charging | 30 minutes of charging provides up to 10 hours of battery |
GPS & navigation
Built-in GPS, so you can record runs and rides without your phone.
| GPS | Built-in |
|---|---|
| Satellite systems | GPS, GLONASS, BeiDou, Galileo |
Health & sensors
A health-focused watch: it measures ECG, blood pressure and blood oxygen.
For sleep, it offers a nightly sleep score. It can warn you about an irregular heart rhythm. ECG availability can depend on your country.
| Sensors | optical HR, ECG electrode, EDA, accelerometer, barometer, gyroscope, compass, ambient light, SpO2 |
|---|---|
| Heart-rate sensor | BioActive Sensor |
| Heart-rate tracking | 24/7 |
| ECG | Yes |
| Irregular rhythm alerts | Yes |
| Blood oxygen (SpO2) | Yes |
| Blood pressure | cuff-calibrated |
| Sleep tracking | Sleep score |
| Body composition | Yes |
Smart features
Smart extras include an LTE version, contactless payments, music storage and calls on the wrist.
Voice assistant: Bixby. LTE needs a carrier plan.
| Notifications | Yes |
|---|---|
| Calls on the watch | Yes |
| Voice assistant | Bixby |
| Contactless payments | Yes |
| Payment service | Samsung Pay |
| Cellular | LTE version available |
| eSIM | Yes |
| Music storage | Yes |
| Wi-Fi | Wi-Fi 802.11 a/b/g/n 2.4+5GHz |
| Bluetooth | Bluetooth 5.0 |
Specs compiled from Samsung's product pages and datasheets, with some identifiers from Open Icecat. Manufacturers revise hardware between versions, so check the version on the box. Spotted an error? Tell us.