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Samsung Galaxy Watch 9 40mm

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Samsung Galaxy Watch 9 40mm

Samsung Galaxy Watch 9 40mm

  • Screen: 44 mm: 480 × 480 pixels; 40 mm: 438 × 438 pixels.
  • Qualcomm Snapdragon Wear Elite, 3 nm processor.
  • 2 GB RAM in this version.
  • 32 GB storage in this version.
  • Runs Wear OS 7; One UI 9 Watch.
KSh 39,500In Stock
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Detailed comparison

Explore the full specifications, section by section.

Display

Display specifications comparison
SpecificationSamsung Galaxy Watch 9 40mm
Display44 mm: 1.47-inch Super AMOLED; 40 mm: 1.34-inch Super AMOLED
Screen resolution44 mm: 480 × 480 pixels; 40 mm: 438 × 438 pixels
Display protectionSapphire crystal
Display features3000 nits (peak)

Connectivity

Connectivity specifications comparison
SpecificationSamsung Galaxy Watch 9 40mm
Network / cellularGSM / HSPA / LTE
SIM / eSIMeSIM
Wi-FiWi-Fi 2.4 GHz + 5 GHz
BluetoothBluetooth 5.3
NFCSupported
Positioning / GNSSDual-frequency GPS, L1 + L5

Identity & design

Identity & design specifications comparison
SpecificationSamsung Galaxy Watch 9 40mm
BrandSamsung
ModelSamsung Galaxy Watch 9 (40 mm and 44 mm configurations)
Announced2026, July 22
Dimensions44 mm: 46.0 × 43.7 × 8.6 mm; 40 mm: 42.7 × 40.4 × 8.6 mm
Weight44 mm: 34.0 g; 40 mm: 31.5 g, without band
Build materialsAluminum case
Strap / bandLightweight breathable Sport Band with Dynamic Lug System
Controls / buttonsTouchscreen and two side buttons

Performance & software

Performance & software specifications comparison
SpecificationSamsung Galaxy Watch 9 40mm
ProcessorQualcomm Snapdragon Wear Elite, 3 nm
CPU5-core
RAM2 GB
Storage32 GB
Operating systemWear OS 7; One UI 9 Watch

Audio & communication

Audio & communication specifications comparison
SpecificationSamsung Galaxy Watch 9 40mm
SpeakerSupported
MicrophoneSupported
CallingBluetooth calling with a connected smartphone; standalone calling on LTE editions

Sensors, health & fitness

Sensors, health & fitness specifications comparison
SpecificationSamsung Galaxy Watch 9 40mm
SensorsSamsung BioActive: optical heart-rate, electrical heart signal, bioelectrical impedance analysis; temperature; accelerometer; barometer; gyroscope; geomagnetic; light sensor
Health & wellness featuresHeart rate; SpO₂; ECG; body composition; temperature; stress; Vitals; Heart Health Score
Sleep trackingSleep-stage tracking; sleep-apnea risk detection; sleep Vitals
Sports / workout modesAutomatic and manual workout tracking across running, walking, cycling, swimming and other activities
Training & outdoor featuresDaily Cardio Load; Fitness Index; workout and recovery guidance
Safety & emergency featuresFall detection and Emergency SOS

Battery & durability

Battery & durability specifications comparison
SpecificationSamsung Galaxy Watch 9 40mm
Battery capacity44 mm: 445 mAh; 40 mm: 390 mAh
Battery lifeUp to 30 hours with AOD on
ChargingFast wireless charging, WPC-based
Water resistance5 ATM; IP68
Durability / certificationsMIL-STD-810H

Compatibility

Compatibility specifications comparison
SpecificationSamsung Galaxy Watch 9 40mm
Phone compatibilityAndroid 13.0 or later; more than 1.5 GB RAM; Google Mobile Services
Companion appGalaxy Wearable; Samsung Health
Colors44 mm: Graphite, Silver; 40 mm: Graphite, Cream

Additional specifications

Additional specifications specifications comparison
SpecificationSamsung Galaxy Watch 9 40mm
Case materialAluminum
Peak brightness3,000 nits peak
Charging time44 mm: 100% in 90 minutes, 45% in 30 minutes; 40 mm: 100% in 80 minutes, 50% in 30 minutes
Release statusAvailable. Released 2026, August 07
Model numbersSM-L340, SM-L350, SM-L345F, SM-L355F, SM-L345U, SM-L355U
Card slotNo
CameraNo
3.5 mm headphone jackNo
USBNo
RadioNo
2G bandsGSM 850 / 900 / 1800 / 1900
3G bandsHSDPA 850 / 900 / 2100
4G bands1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 34, 38, 39, 40, 41, 66, 71
Network speedHSPA, LTE
SAR (US)1.06 W/kg (body)
SAR (EU)0.70 W/kg (body)
Additional durability featuresArmor Aluminum 2

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