Samsung Galaxy Watch 7

Basic

• Model: Samsung Galaxy Watch7

• Case sizes: 40 mm and 44 mm.

• Colors: Green, Cream, Silver (availability varies by size/region).

Display

• 40 mm: ~1.31" Super AMOLED, 432 × 432 px, sapphire crystal.

• 44 mm: ~1.47" Super AMOLED, 480 × 480 px, sapphire crystal.

Platform & Performance

• SoC: Exynos W1000 (3 nm).

• CPU/GPU: Multi-core CPU with Cortex-A78 + A55 cluster; Mali GPU.

• RAM: 2 GB.

• Storage: 32 GB internal.

• OS: Wear OS (recent One UI watch layer; versions evolving).

Battery & Charging

• 40 mm battery: ~300 mAh (typical).

• 44 mm battery: ~425 mAh (typical).

• Charging: Qi wireless charging (up to ~15 W support on some chargers). Wikipedia

Connectivity

• Bluetooth 5.3, Wi-Fi (2.4 + 5 GHz), NFC (for Samsung Pay / contactless), GPS (A-GPS, GLONASS, Galileo, BeiDou).

• Cellular: eSIM / LTE variants available (carrier dependent).

Health & Sensors

• Heart rate sensor (optical), ECG, SpO₂ (blood oxygen), body temperature sensor, Bioelectrical Impedance Analysis (BIA) for body composition, accelerometer, gyroscope, barometer, geomagnetic sensor, ambient light sensor.

Durability

• Chassis: Aluminum (standard models); Watch Ultra uses titanium (separate model). Samsung au

• Water resistance: 5 ATM + IP68 (suitable for swimming & showering; follow manufacturer care).

Physical

• Dimensions (approx):

  • 40 mm: 40.4 × 40.4 × 9.7 mm, weight ~28.8 g (without strap). Wikipedia

  • 44 mm: 44.4 × 44.4 × 9.7 mm, weight ~33.8 g (without strap).

• Strap width: 20 mm (standard quick-release bands).

Other features

• Watch faces, Google Play apps, workout modes, sleep coaching, emergency SOS, Galaxy AI features (where supported), voice assistant, offline music storage (with 32 GB).

Does the Galaxy Watch7 work without a phone?

Yes — the Watch7 has LTE/eSIM models that can make/receive calls, messages and use data independently of a paired phone (requires carrier activation). For full setup and app management you’ll typically still use the Galaxy Wearable app on a phone.

How long does the battery last?

Battery life depends on model and usage. The 40 mm (≈300 mAh) will be shorter than the 44 mm (≈425 mAh). Typical mixed use runs around 1–2 days; heavy use (GPS, LTE, Always-On Display) reduces this. Keep firmware updated for battery improvements.

Is ECG, blood pressure or sleep tracking available on all phones?

Some health features (ECG, blood pressure) require the Samsung Health/Galaxy Health ecosystem and may be limited or disabled on non-Samsung phones or in certain regions due to regulatory approvals. Sleep tracking and standard heart/spO₂ readings work broadly, but check local availability for advanced medical features.