Garmin
Garmin Fenix 8 43mm
A solid mid-range smartwatche for anyone tracking training and health, leading with Garmin OS.
69/100
Garmin OSAMOLEDBluetooth compatible devices
£750best price at Amazon
In stock at 1 retailer
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Why we rate it
- Always-on display
- Touchscreen
- Heart rate
- Above-average water resistance
- No blood pressure
- No cellular (lte/5g)
Score profile
Scored against the smartwatches classWhere the Garmin Fenix 8 43mm wins and loses
Full specification
Grouped · supported features marked in blueSpecifications
Display
Screen size43 "
Panel typeAMOLED
Always-on displayYes
TouchscreenYes
Health
Heart rateYes
ECGYes
Blood oxygen (SpO2)Yes
Sleep trackingYes
Body / skin temperatureYes
Stress trackingYes
Fall detectionYes
Fitness
Built-in GPSYes
Design
Case diameter43 mm
Water resistance100
SpeakerYes
MicrophoneYes
Platform
OSGarmin OS
Compatible withBluetooth compatible devices
More specs
Size43 mm
Watch it in action
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Head to head
Highlighted cell = better in that rowGarmin Fenix 8 43mm vs Apple Apple Watch Ultra 3 GPS + Cellular 49mm
Garmin Fenix 8 43mmApple Watch Ultra 3 GPS + Cellular 49mm
| GarminGarmin Fenix 8 43mmThis page | AppleApple Watch Ultra 3 GPS + Cellular 49mm | |
|---|---|---|
| Overall score | 69 /100 | 70 /100Better |
| Battery hours | — | 42 hours |
| Size | 43 " | — |
| Gps | — | 20 hours |
| Ecg | Yes | Yes |
Who it's for
Is the Garmin Fenix 8 43mm right for you?
Buy it if
Buyers on a budget
Anyone who needs a dependable smartwatche for the essentials without overspending.
Skip it if
Skip it if
You need blood pressure, in which case a higher-tier smartwatche is the better call.
Serious trainer
Logs every session and wants accurate metrics.
good
Everyday wearer
Notifications, steps and sleep, all day comfort.
good
First-timer
New to wearables and weighing the basics.
okay
Common questions
Before you buy
Is the Garmin Fenix 8 43mm worth it?
It depends on what you need. It scores 69/100 against other smartwatches, a solid mid-range result where the class average is around 58.
What stands out on the Garmin Fenix 8 43mm?
Its always-on display stands out, a genuinely useful feature if your setup calls for it.
How does it compare to the Apple Watch Ultra 3 GPS + Cellular 49mm?
The Apple Watch Ultra 3 GPS + Cellular 49mm scores 70/100 versus this one at 69/100, so it is the step up on the spec sheet.
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The Garmin fēnix 8 47mm AMOLED Sapphire covers the basics for less outlay.
See review →If you want the best

Apple Watch Ultra 3 GPS + Cellular 49mm
The Apple Watch Ultra 3 GPS + Cellular 49mm scores higher and adds headroom for demanding setups.
See review →



