Our verdict
A rugged, premium multisport watch for trail runners, ultra athletes, skiers and adventurers who need maps, durability and deep training data.
What we like
- Military-standard build with dive rating and metal sensor guard
- Built-in LED flashlight and speaker/mic
- Full running, triathlon and trail toolset
- Preloaded topo, ski and golf maps
- Available with solar charging for longer battery life
What to consider
- Most expensive watch in this roundup
- Shorter battery life than the lighter Forerunner 965
- Overkill for runners who never leave the road
- Larger and heavier on the wrist

Image credit: Garmin (official product imagery, used for editorial review purposes)
Overview
The Garmin fenix 8 is Garmin’s flagship multisport adventure watch, and while it is built as much for hiking and skiing as for running, its running credentials are just as strong as the Forerunner line. At $1,849 AUD for the 47mm AMOLED model, it adds a dive rating, an LED flashlight, a speaker and microphone, and a titanium-ready build that the Forerunner range does not offer.
Design and Display
The fenix 8 is available in 43mm, 47mm and 51mm sizes with either AMOLED or solar-assisted displays, dive-rated to military standards for shock, thermal and water resistance. The metal sensor guard and leakproof buttons add durability that road-running watches rarely need, but which trail and ultra runners training year-round in rough conditions will appreciate.
Running and Training Features
Runners get the same core toolkit as the Forerunner 965 plus a few extras: wrist-based running power and dynamics, PacePro pace guidance, ClimbPro, race predictor, hill score, endurance score, running economy and running tolerance (the latter two when paired with Garmin’s HRM 600 chest strap). Multisport auto-transition and course planner features make it well suited to triathlon and ultra-distance race planning, and preloaded golf, ski and topographic maps extend its use well beyond running.
Health and Recovery
The fenix 8 carries Garmin’s full health suite: HRV status, sleep coaching, Body Battery, ECG app, pulse oximetry, jet lag adviser and health status tracking, alongside a built-in speaker and microphone for voice-to-text messaging and phone calls when paired with a smartphone.
Battery Life
Garmin rates the 47mm AMOLED fenix 8 at up to 16 days in smartwatch mode, less than the Forerunner 965 despite its larger case, because of the extra always-on hardware (speaker, flashlight, larger display). Solar models in the range extend this considerably in bright conditions.
Price and Value
At $1,849 AUD and up, the fenix 8 is one of the most expensive watches in this roundup. Runners who only race on roads are unlikely to need its dive rating or flashlight, but multisport athletes and trail/ultra runners who want one watch for everything will find the price easier to justify.
Verdict
The fenix 8 is the watch to choose if running is only part of a wider outdoor and multisport life. Dedicated road runners who do not need its ruggedness will get better running-specific value from the Forerunner 965.




