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Wearable comparison

Samsung Galaxy Fit 3 vs Samsung Galaxy Watch 9 40mm

Compare battery life, health tracking, display and fit.

Compared products
01Selected
Samsung Galaxy Fit 3

Samsung Galaxy Fit 3

  • Screen: 256 × 402 pixels; 302 ppi.
  • Runs FreeRTOS.
  • Bluetooth 5.3 connection.
  • 208 mAh battery capacity.
  • 16 MB.
KSh 8,500In Stock
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02
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 41,200In Stock
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Oraimo Watch 5KSh 4,500
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Huawei Band 9KSh 8,000
2 of 4 products

Our quick verdict

The Samsung Galaxy Watch 9 40mm takes ECG heart-rhythm readings, has a sharper screen and is slimmer, while the Samsung Galaxy Fit 3 lasts longer between charges (up to 13 days) and is lighter to wear all day.

Display

Samsung Galaxy Fit 3
256 × 402 pixels; 302 ppi
Samsung Galaxy Watch 9 40mm
44 mm: 480 × 480 pixels; 40 mm: 438 × 438 pixels

Software

Samsung Galaxy Fit 3
Runs FreeRTOS
Samsung Galaxy Watch 9 40mm
Runs Wear OS 7; One UI 9 Watch

Battery life

Samsung Galaxy Fit 3
208 mAh battery
Samsung Galaxy Watch 9 40mm
Up to 30 hours per charge

Portability

Samsung Galaxy Fit 3
18.5 g
Samsung Galaxy Watch 9 40mm
31.5 g

Memory

Samsung Galaxy Fit 3
16 MB
Samsung Galaxy Watch 9 40mm
2 GB RAM

Key differences

The main differences to help you choose.

Samsung Galaxy Fit 3

  • Longer rated battery life: up to 13 days (vs 30 hours).
  • Lighter: 18.5 g (vs 31.5 g).
  • Lower price: KSh 8,500 (vs KSh 41,200).

Samsung Galaxy Watch 9 40mm

  • ECG heart-rhythm readings.
  • Higher screen resolution: 480 × 480 (vs 256 × 402).
  • Slimmer: 8.6 mm thick (vs 9.9 mm).
  • Takes calls from the wrist over Bluetooth.
  • Newer model: released in 2026 (vs 2024).

What matters most to you?

Choose any priorities

How each product answers the questions buyers ask most. Tick a topic to add it, untick one to hide it.

More topicsFewer topics
6 priorities selected.
How each product answers the selected priorities
PrioritySamsung Galaxy Fit 3Samsung Galaxy Watch 9 40mm
Battery life208 mAh batteryUp to 30 hours per charge
Display1.6-inch OLED display, 302 ppi1.47-inch OLED display
SoftwareFreeRTOSWear OS 7
Battery capacity208 mAh battery44 mm: 445 mAh
Memory16 MB2 GB RAM
Storage256 MB32 GB storage

Detailed comparison

Explore the full specifications, section by section.

Display

Display specifications comparison
SpecificationSamsung Galaxy Fit 3Samsung Galaxy Watch 9 40mm
Display1.6-inch AMOLED touchscreen44 mm: 1.47-inch Super AMOLED; 40 mm: 1.34-inch Super AMOLED
Screen resolution256 × 402 pixels; 302 ppi44 mm: 480 × 480 pixels; 40 mm: 438 × 438 pixels
Display protectionPANDA glassSapphire crystal
Display featuresAlways-on display supported; reduces battery life3000 nits (peak)

Connectivity

Connectivity specifications comparison
SpecificationSamsung Galaxy Fit 3Samsung Galaxy Watch 9 40mm
BluetoothBluetooth 5.3Bluetooth 5.3
Network / cellular—GSM / HSPA / LTE
SIM / eSIM—eSIM
Wi-Fi—Wi-Fi 2.4 GHz + 5 GHz
NFC—Supported
Positioning / GNSS—Dual-frequency GPS, L1 + L5

Identity & design

Identity & design specifications comparison
SpecificationSamsung Galaxy Fit 3Samsung Galaxy Watch 9 40mm
BrandSamsungSamsung
ModelSamsung Galaxy Fit 3Samsung Galaxy Watch 9 (40 mm and 44 mm configurations)
AnnouncedFebruary 20242026, July 22
Dimensions42.9 × 28.8 × 9.9 mm44 mm: 46.0 × 43.7 × 8.6 mm; 40 mm: 42.7 × 40.4 × 8.6 mm
Weight18.5 g without strap44 mm: 34.0 g; 40 mm: 31.5 g, without band
Build materialsAluminum caseAluminum case
Wrist sizeBand fit varies by supplied strap configuration—
Strap / bandFluoroelastomer Sport BandLightweight breathable Sport Band with Dynamic Lug System
Controls / buttonsTouchscreen and one side buttonTouchscreen and two side buttons

Memory & software

Memory & software specifications comparison
SpecificationSamsung Galaxy Fit 3Samsung Galaxy Watch 9 40mm
Memory / RAM16 MB2 GB
Storage256 MB32 GB
Operating systemFreeRTOSWear OS 7; One UI 9 Watch

Health & fitness

Health & fitness specifications comparison
SpecificationSamsung Galaxy Fit 3Samsung Galaxy Watch 9 40mm
SensorsAccelerometer; gyroscope; optical heart-rate sensor; barometer; light sensorSamsung BioActive: optical heart-rate, electrical heart signal, bioelectrical impedance analysis; temperature; accelerometer; barometer; gyroscope; geomagnetic; light sensor
Health & wellness featuresHeart rate; high and low heart-rate alerts; SpO₂; stress; menstrual-cycle trackingHeart rate; SpO₂; ECG; body composition; temperature; stress; Vitals; Heart Health Score
Sleep trackingSleep monitoringSleep-stage tracking; sleep-apnea risk detection; sleep Vitals
Sports / workout modesMore than 100 workout types with automatic workout detectionAutomatic and manual workout tracking across running, walking, cycling, swimming and other activities

Smart features

Smart features specifications comparison
SpecificationSamsung Galaxy Fit 3Samsung Galaxy Watch 9 40mm
Smart features / notificationsPhone notifications; preset text replies; camera and media control; phone-mode syncing—
Safety & emergency featuresFall detection; SOS emergency calling through paired Galaxy phoneFall detection and Emergency SOS

Battery & durability

Battery & durability specifications comparison
SpecificationSamsung Galaxy Fit 3Samsung Galaxy Watch 9 40mm
Battery capacity208 mAh44 mm: 445 mAh; 40 mm: 390 mAh
Battery lifeUp to 13 daysUp to 30 hours with AOD on
ChargingMagnetic POGO-pin chargingFast wireless charging, WPC-based
Water resistance5 ATM; IP685 ATM; IP68
Durability / certifications—MIL-STD-810H

Compatibility

Compatibility specifications comparison
SpecificationSamsung Galaxy Fit 3Samsung Galaxy Watch 9 40mm
Phone compatibilityAndroid 10.0 or later; at least 1.5 GB RAM; Google Mobile ServicesAndroid 13.0 or later; more than 1.5 GB RAM; Google Mobile Services
Companion appGalaxy Wearable and Samsung HealthGalaxy Wearable; Samsung Health
ColorsDark Gray; Silver; Pink Gold44 mm: Graphite, Silver; 40 mm: Graphite, Cream

Additional specifications

Additional specifications specifications comparison
SpecificationSamsung Galaxy Fit 3Samsung Galaxy Watch 9 40mm
case materialAluminumAluminum
packing listCharging adapter; Sport Band; quick start guide—
smart recognitionAutomatic workout detection—
Peak brightness—3,000 nits peak
Charging time—44 mm: 100% in 90 minutes, 45% in 30 minutes; 40 mm: 100% in 80 minutes, 50% in 30 minutes
Release status—Available. Released 2026, August 07
Model numbers—SM-L340, SM-L350, SM-L345F, SM-L355F, SM-L345U, SM-L355U
Card slot—No
Camera—No
3.5 mm headphone jack—No
USB—No
Radio—No
2G bands—GSM 850 / 900 / 1800 / 1900
3G bands—HSDPA 850 / 900 / 2100
4G bands—1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 34, 38, 39, 40, 41, 66, 71
Network speed—HSPA, LTE
SAR (US)—1.06 W/kg (body)
SAR (EU)—0.70 W/kg (body)
Additional durability features—Armor Aluminum 2

Performance & software

Performance & software specifications comparison
SpecificationSamsung Galaxy Fit 3Samsung Galaxy Watch 9 40mm
Processor—Qualcomm Snapdragon Wear Elite, 3 nm
CPU—5-core

Audio & communication

Audio & communication specifications comparison
SpecificationSamsung Galaxy Fit 3Samsung Galaxy Watch 9 40mm
Speaker—Supported
Microphone—Supported
Calling—Bluetooth calling with a connected smartphone; standalone calling on LTE editions

Sensors, health & fitness

Sensors, health & fitness specifications comparison
SpecificationSamsung Galaxy Fit 3Samsung Galaxy Watch 9 40mm
Training & outdoor features—Daily Cardio Load; Fitness Index; workout and recovery guidance

Similarities

  • Both are rated IP68.
  • Both use Bluetooth 5.3.
  • Both have an aluminium case.
  • Both are water resistant to 50 m.
  • Both have OLED displays.
  • Both have similar screen sizes (1.6 and 1.47 inches).

In summary

For most buyers the Samsung Galaxy Watch 9 40mm is the better buy; the Samsung Galaxy Fit 3 makes sense if you want longer battery life.

Back to compared products ↑

In-stock alternatives

Xiaomi Smart Band 10For Samsung Galaxy Fit 3Xiaomi Smart Band 10View product ↗Huawei Band 9For Samsung Galaxy Fit 3Huawei Band 9View product ↗Samsung Galaxy Watch 9 44mmFor Samsung Galaxy Watch 9 40mmSamsung Galaxy Watch 9 44mmView product ↗

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