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Galaxy Watch4 Device Overview
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AT&T Inside Look - Galaxy Watch4
3:15
Trade in New Phone Discount
1:39
How to Clean Your Device
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The Samsung Galaxy Watch4 helps track your fitness with features like ECG heart rate.1 A lightweight aluminum casing & digital bezel provide functionality & style. With AT&T NumberSync you can call & text right from your wrist using your smartphone number.2
Galaxy Watch4 Device Overview
1:00
AT&T Inside Look - Galaxy Watch4
3:15
Trade in New Phone Discount
1:39
How to Clean Your Device
1:20
Key Features
- ECG
- Aluminum case
- Digital bezel
- NumberSync®
- Body Composition Analysis
- Advanced Sleep
Dimensions
| Size (inches) | 1.75 x 1.70 x 0.39 |
| Weight (ounces) | 1.07 |
Display
| Display size (inches) | 1.4 |
| Resolution (pixels) | 450 x 450 |
| Colors | 16 million |
Camera & Video
| Video playback | Up to 720p (30fps) (via 3rd party apps, no video player preloaded) |
| Steaming video | Via 3rd party apps, no video player preloaded |
Battery
| Battery capacity | 361mAh |
| Talk time (hours) | Up to 2.8 |
| Standby time (days) | Up to 2.9 |
| Wireless charging capable | |
| Time to charge to 50% | Up to 50 minutes |
| Time to charge to 100% | Up to 110 minutes |
Processor
| Chipset | Exynos W920 |
| Cores | Dual-core, 2 at 1.18GHz |
Memory
| Internal memory storage | Up to 16GB |
| RAM | 1.5 |
Operating System
| Wear OS | Wear OS Powered by Samsung |
| Voice dialing and voice commands |
Wireless Technology
| 4G LTE | Bands 2, 4, 5, and 12 |
| 4G | HSPA+ with enhanced backhaul |
| 3G - UMTS | 850/1900MHz |
| HD Voice capable | |
| NumberSync capable | |
| Wi-Fi connectivity | 802.11a/b/g/n |
| Wi-Fi capability | 2.4GHz & 5.0GHz |
| Near Field Communication (NFC) | Open, Secure |
| Bluetooth® technology | v5.0 + EDR, A2DP, HS, LE |
| Wireless emergency alerts (CMAS) capable | |
| SIM type | eSim |
Sensors
| Sensors | Accelerometer, Ambient Light, Barometer, Gyroscope, Heart Rate, E-Compass, Magnetometer, ECG |
Messaging & Email
| Text messaging | Send and receive text messages from your wrist (messaging charges apply). |
| Mobile email | Outlook |
| Microsoft Direct Push |
Music
| Music player | Music |
| Supported music formats | MP3, M4A, 3GA, AAC, OGG, OGA, WAV, AMR, AWB |
Accessibility
| Real Time Text (RTT) capable |
Sustainability
| Device Eco-rating | The AT&T Eco-Rating 2.0 system gives you environmental and social details about this device. The system uses a total of 20 performance criteria across 5 different attributes, for a total rating of 1 to 5 stars: 19-20 (5-star), 16-18 (4-star), 13-15 (3-star), 10-12 (2-star), 8-9 (1-star) |
| Substances of concern | 4/4 |
| Environmentally preferable materials | 2/3 |
| Energy efficiency and charging | 1/1 |
| End of life and recycling | 2/2 |
| Environmentally and socially responsible manufacturing | 10/10 |
| Total Eco-score | 19/20 (5-star) Please visit www.att.com/ecospace for additional information |
Product codes
| UPC | 887276554952 |
| SKU | 6045D |
QuickStart Guide
Wireless Charger
Watch Band
eSIM
A new way to connect your smartphone to our network. An eSIM is a digital version of a physical SIM card, with some distinct advantages:
- Faster setup—download and activate in just minutes
- Encrypted, secure connectivity
- Can’t be lost or stolen
California Proposition 65 warning
WARNING: Cancer and reproductive harm – www.P65Warnings.ca.gov