Samsung Galaxy Watch 9 BT Graphite 40mm
SM-L340NZKAXSA
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Product Overview
Key Features
- Sapphire Crystal Display with 438x438 resolution and a brightness level of up to 3,000 nits
- Slim, light with soft band, sleek profile
- Personalise your wearable experience with intuitive features
- WPC Wireless Charging + Fast Charging
Key Specifications
- Brand:
- Samsung
- Model Number:
- SM-L340NZKAXSA
- Compatible Phones:
- Best with Samsung Galaxy Phones
- Face Size (mm):
- 40
- Display:
- 1.34" Sapphire Crystal
- GPS:
- GPS, Glonass, Beidou, Galileo, QZSS
Phones & Wearables
- Strap:
- Dynamic Lug System and airy, flexible Sport Band
Screen Technology
- Display Resolution (px):
- 438x438
- Peak Brightness (Nits):
- 3000
Capacity
- Storage Capacity:
- 32GB
- Memory:
- 2GB
Connections
- Connections:
- 802.11a/b/g/n 2.4GHz+5GHz, Bluetooth v6.0, NFC
- Cellular or Wi-Fi Only:
- Wi-Fi Only
Power & Charging
- Battery Life:
- Up to 40 Hours with Always On Display off, Up to 30 Hours with AOD on
Options
- Sensor Technology:
- Accelerometer, Barometer, Bioelectrical Impedance Analysis, Electrical Heart, Gyro, Geomagnetic, Light, Optical Heart Rate, Temperature
- Trackers:
- All-day health tracking
Safety
- Water Resistant:
- 5 ATM + IP68 / MIL-STD-810H
General Information
- Type:
- Smart Watch
- Family:
- Galaxy Watch9
- Colour:
- Black
- Supplier Colour:
- Graphite
- Band Colour:
- Black
- Materials:
- Aluminum
- Operating System:
- Wear OS Powered by Samsung
- Processor:
- Snapdragon® Wear Elite Platform
- Additional Features:
- Microphone. Speaker, New UX (One UI 8), Personalised Running Coach, Gemini on Watch, AI Powered Insights & Tracking, Generative Tiles, Raise to Talk
- What's In The Box:
- Watch face, Sport Band S/M, Wireless Charger, Quick Start Guide
Warranty
- Manufacturer's Warranty:
- 2 Year
Phones & Wearables
- Strap:
- Dynamic Lug System and airy, flexible Sport Band
Capacity
- Storage Capacity:
- 32GB
- Memory:
- 2GB
Power & Charging
- Battery Life:
- Up to 40 Hours with Always On Display off, Up to 30 Hours with AOD on
Safety
- Water Resistant:
- 5 ATM + IP68 / MIL-STD-810H
Warranty
- Manufacturer's Warranty:
- 2 Year
Product Dimensions
- Product Height (mm):
- 42.7
- Product Width (mm):
- 40.4
- Product Depth (mm):
- 8.6
- Product Weight (g):
- 31.5
Box Dimensions
- Box Height (mm):
- 40
- Box Width (mm):
- 43
- Box Depth (mm):
- 9
- Box Weight (kg):
- 0
Product Reviews of Samsung Galaxy Watch 9 BT Graphite 40mm
Overall Rating Snapshot
5 out of 5 stars from 1 review
100% of users recommend this product
Excellent Feature
Very happy with the watch, light weight and good features.
BG
Confirmed purchase 10 September 2026
Published on 8 October 2026
Yes, I recommend this product.
This customer is a verified purchaser who may have received an incentive in return for providing an authentic review.
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ABOUT THE GOOD GUYS REVIEWSThe Good Guys product reviews are collected from verified purchasers who may have received an incentive in return for providing an authentic review.
The below information is AI generated based on Australian websites information around this item. We have done our best to ensure its accuracy but suggest verifying any information within this tab before purchasing.
At a glance
The Samsung Galaxy Watch 9 BT Graphite 40mm is a compact premium smart watch for Android users who want health insights, fitness tracking and comfortable all-day wear. Its key strengths are Samsung's polished ecosystem, preventive wellness features and a faster chip. The main limitation is that the design changes are minimal, and the battery improvement appears modest rather than a major leap.
What it’s great for
- Daily health tracking
- Everyday fitness
- Notifications and calls via Bluetooth
- Comfortable all-day wear
- Android companion use
Where it works best
- Home
- Office
- Gym
- Walking and running routes
- Everyday commuting
Who it’s for
- Android user
- Health-conscious wearer
- Casual exerciser
- Everyday professional
- Samsung ecosystem user
Things to consider
Compared with more rugged or longer-lasting specialist smart watches, this 40 mm Bluetooth model appears to focus more on comfort and everyday wellness than on major battery gains or a bold redesign.
Fitness tracking suitability
8/10 - strong for everyday fitness and wellness tracking, with more focus on general health use than specialist endurance training.
Ios/android compatibility score
6/10 - best suited to Android users, especially within the Samsung ecosystem; cross-platform appeal is less clear than some rivals.
All-day comfort rating
9/10 - the compact 40 mm size and comfort-focused fit make it well suited to extended daily wear.
Battery endurance rating
7/10 - the larger battery is a welcome step up, but available information suggests the gain may be modest rather than class-leading.
Professional vs casual fit
Balanced - sleek enough for work settings, but still clearly designed for everyday casual and fitness use.
Key benefits
- 40 mm case: A compact size that suits smaller wrists and users who prefer a lighter, less bulky watch feel.
- Bluetooth connectivity: Ideal for users who want smart watch features paired with their phone without paying extra for LTE.
- Preventive health features: Helps users keep a closer eye on wellness trends and day-to-day health habits.
- Faster chip: Delivers a more responsive feel for navigating apps, tracking activity and using watch functions.
- All-day comfort fit: Designed for extended wear, making it easier to keep the watch on from morning through night.
- Larger battery: Offers an incremental battery improvement over the previous generation for everyday use.
- Graphite finish: A versatile darker colour that pairs easily with workwear, casual outfits and most bands.
- Band choice support: Compatible styling options let users tailor the watch for sport, casual wear or a softer fabric feel.
Q: What does the BT version of the Samsung Galaxy Watch9 40mm mean for calls and messages?
A: BT means this SM-L340NZKAXSA model is the Bluetooth version, not the LTE version. It handles calls, texts and app alerts when connected to a compatible phone, but it does not use a mobile network on its own when you leave the phone behind.
Q: Is the 40mm Samsung Galaxy Watch9 a better fit for smaller wrists?
A: Yes, the 40mm case is the more compact Galaxy Watch9 size and usually suits smaller wrists or buyers who prefer a lighter watch. The trade-off is a smaller display area than the 44mm version, so compare both sizes in the range if screen space matters.
Q: How can I confirm this watch is the Samsung Galaxy Watch9 model SM-L340NZKAXSA?
A: Check the product label on the box or the watch settings for the model code SM-L340NZKAXSA. Matching that code confirms this exact Bluetooth 40mm Graphite variant, which is useful when comparing accessories, setup guides or replacement bands.
Q: Is the larger battery on the Galaxy Watch9 40mm enough for day and night wear?
A: Yes, the battery is rated for up to 40 hours with the always-on display off, or up to 30 hours with it on, which supports all-day wear including overnight sleep tracking. Actual runtime still depends on screen brightness, notification volume and workout tracking, so heavier use will drain it faster than basic everyday use.
Q: Do the Galaxy AI features on this Samsung Galaxy Watch9 require an extra subscription?
A: Basic Samsung Galaxy AI features are included at no extra cost on Galaxy Watch9. Samsung notes that future AI releases may be paid and third-party AI features can have different terms, so feature availability may change over time.
