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Which watch is better for ultra-endurance events, the Enduro 3 or the Fenix 8


For ultra-endurance events like 100k to 100 mile ultramarathons, the Garmin Enduro 3 is the better choice between the Enduro 3 and Fenix 8:

Battery Life

The Enduro 3 has significantly better battery life, lasting up to 90 days in smartwatch mode with solar charging and up to 320 hours in GPS mode[1][2]. The Fenix 8 has impressive battery life as well, but can't quite match the Enduro 3, especially in the AMOLED models which have shorter battery life[5].

Endurance-Focused Features

The Enduro 3 is specifically designed for ultra-endurance athletes, with features like trail run VO2 max and grade adjusted pace that are tailored for long-distance running[5]. While the Fenix 8 has a more comprehensive set of features overall, the Enduro 3 has the essentials covered for ultra events.

Price

The Enduro 3 is also more affordable at $899, compared to $999 for the base Fenix 8 models[1]. For ultra runners on a budget, the Enduro 3 provides excellent value.

Size Options

The Enduro 3 only comes in a single 51mm size, while the Fenix 8 offers 43mm, 47mm and 51mm options[2]. For runners with smaller wrists who prefer a more compact watch, the Fenix 8 47mm may be a better fit.

In summary, the Enduro 3's unmatched battery life, endurance-focused features, and lower price make it the top choice for ultra-marathoners. The Fenix 8 is still an excellent watch, but the Enduro 3 is optimized for the demands of long ultras[4].

Citations:
[1] https://www.tomsguide.com/wellness/smartwatches/the-new-garmin-enduro-3-is-here-better-battery-life-than-fenix-8-and-cheaper
[2] https://www.youtube.com/watch?v=fxGmw-J-XZU
[3] https://www.gone4.run/2024/08/garmin-fenix-8-fenix-e-enduro-3-review.html
[4] https://www.reddit.com/r/Garmin/comments/1fb983s/fenix_8_47mm_vs_enduro_3_for_ultramarathons/
[5] https://www.youtube.com/watch?v=iMlOeTeaywU
[6] https://www.dcrainmaker.com/2024/08/garmin-enduro-3-in-depth-review-vs-fenix8-solar.html
[7] https://www.youtube.com/watch?v=Q1fj4Bl9IVo
[8] https://www.dcrainmaker.com/2024/09/garmin-fenix-8-analysis-thoughts-enduro3.html